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R&S ESPI3 Operating Manual

Emi test receiver

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R&S

ESPI

®

EMI Test Receiver

Operating Manual

1164.6607.12 – 02

www.valuetronics.com

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Page 1 R&S ESPI ® EMI Test Receiver Operating Manual 1164.6607.12 – 02 www.valuetronics.com...
Page 2 ® The Operating Manual describes the following R&S ESPI models and options: R&S ESPI3 (1164.6407K03) R&S ESPI7 (1164.6407K07) R&S FSP-B6 (1129.8594.02) R&S FSP-B9 (1129.6991.02) R&S FSP-B10 (1129.8042.03) R&S FSP-B16 (1129.8042.03) © 2009 Rohde & Schwarz GmbH & Co. KG 81671 Munich, Germany Printed in Germany –...
Page 3: Documentation Overview
R&S ESPI visit the R&S ESPI EMI Test Receiver Internet site. Base unit models • R&S ESPI3 (9kHz to 3 GHz) • R&S ESPI7 (9kHz to 7 GHz)) Options described in the base unit manuals: •...
Page 4 R&S ESPI Documentation Overview Operating Manual This manual is a supplement to the Quick Start Guide and is available in PDF format on the CD-ROM delivered with the instrument. To retain the familiar structure that applies to all operating manuals of Rohde&Schwarz Test & Measurement instru- ments, the chapters 1 and 3 exist, but only in form of references to the correspond- ing Quick Start Guide chapters.
Page 5 R&S ESPI Documentation Overview Internet Site The Internet site at: R&S ESPI EMI Test Receiver provides the most up to date infor- mation on the R&S ESPI. The current operating manual at a time is available as printable PDF file in the download area.
Page 6 EC Certificate of Conformity Certificate No.: 2004-39 This is to certify that: Equipment type Stock No. Designation ESPI3 1164.6407.03 EMI Test Receiver ESPI7 1164.6407.07 ESPI-B2 1129.7498.02 Preselector ESPI-B20 1155.1606.07 Extended Environment Specs complies with the provisions of the Directive of the Council of the European Union on the...
Page 7 www.valuetronics.com...
Page 8: Putting Into Operation
R&S ESPI Putting into Operation 1 Putting into Operation For details refer to the Quick Start Guide chapter 1, “Front and Rear Panel” and chapter 2, “ Preparing for Use”. Operating Manual 1164.6607.12 - 01 www.valuetronics.com...
Page 9 R&S ESPI Putting into Operation Operating Manual 1164.6607.12 - 01 www.valuetronics.com...
Page 10 R&S ESPI Getting Started 2 Getting Started For details refer to the Quick Start Guide chapter 1, “Basic Measurement Examples”. Operating Manual 1164.6607.12 - 02 www.valuetronics.com...
Page 11 R&S ESPI Getting Started Operating Manual 1164.6607.12 - 02 www.valuetronics.com...
Page 12: Manual Operation
R&S ESPI Manual Operation 3 Manual Operation For details refer to the Quick Start Guide chapter 4, “Basic Operation”. Operating Manual 1164.6607.12 - 02 www.valuetronics.com...
Page 13 R&S ESPI Manual Operation Operating Manual 1164.6607.12 - 02 www.valuetronics.com...
Page 14: Table Of Contents
R&S ESPI Instrument Functions 4 Instrument Functions 4.1 Introduction ..........4.5 4.2 R&S ESPI Initial Configuration –...
Page 15 R&S ESPI Instrument Functions 4.6.8 Selection of Trace Functions ....... . . 4.98 4.6.8.1Selection of Detector .
Page 16 R&S ESPI Instrument Functions 4.7.4 Saving and Recalling Data Sets – FILE Key ....4.260 4.7.4.1Overview ......... . . 4.260 4.7.4.2Operating Concept of File Managers .
Page 17 R&S ESPI Instrument Functions 4.12.2 Programming via the RSIB Protocol ......4.322 4.12.2.1Visual Basic ........4.322 4.12.2.2Visual Basic for Applications (Winword and Excel) .
Page 18: Introduction
R&S ESPI Instrument Functions Introduction 4.1 Introduction All functions of the R&S ESPI and their application are explained in detail in this chapter. The sequence of the described menu groups depends on the procedure selected for the configuration and start of a measurement: 1.
Page 19: R&S Espi Initial Configuration - Preset Key
R&S ESPI Instrument Functions R&S ESPI Initial Configuration – PRESET Key 4.2 R&S ESPI Initial Configuration – PRESET Key Using the PRESET key, the R&S ESPI can be set to a predefined initial state. PRESET The settings are selected in a way that the RF input is always protected against overload, provided that the applied signal levels are in the allowed range for the instrument.
Page 20 R&S ESPI Instrument Functions R&S ESPI Initial Configuration – PRESET Key Table 4-4 RECEIVER SETUP of R&S ESPI Parameter Settings Mode Mixed (Bargraph in screen A und Spectrum in screen B) Center frequency 100 MHz Center frequency step size AUTO COARSE Span 5 MHz RF attenuation...
Page 21 R&S ESPI Instrument Functions R&S ESPI Initial Configuration – PRESET Key Table 4-5 ANALYZER SETUP of R&S ESPI Parameter Settings Mode Spectrum Center frequency 1,5 GHz / 3,5 GHz for R&S ESPI-3/-7 Center frequency step size 0.1 × center frequency Span 3 GHz / 7 GHz (R&S ESPI-3/-7) RF attenuation...
Page 22: Mode Selection - Hotkey Bar
R&S ESPI Instrument Functions Mode Selection – Hotkey Bar 4.3 Mode Selection – Hotkey Bar For fast mode selection the R&S ESPI has keys located under the measurement screen, the so-called hotkeys. These hotkeys are displayed depending on the options installed on the instrument. According to the selected mode, the correspond- ing softkey menus are displayed (on the right side of the measurement screen).
Page 23: Return To Manual Operation - Local Menu
R&S ESPI Instrument Functions Return to Manual Operation – LOCAL Menu 4.4 Return to Manual Operation – LOCAL Menu The LOCAL menu is displayed on switching the instrument to remote control mode. LOCAL At the same time, the hotkey bar is blanked out and all keys are disabled except the PRESET key.
Page 24: Receiver Mode
R&S ESPI Instrument Functions Receiver Mode 4.5 Receiver Mode The receiver mode is selected using the RECEIVER hotkey (see also section “Mode RECEIVER Selection – Hotkey Bar” on page 4.9) The mode is selected with the RECEIVER hotkey for displaying both subscreens or with the MIXED hotkey for displaying one subscreen as the receiver.
Page 25 R&S ESPI Instrument Functions Receiver Mode FINAL MEAS PEAK SEARCH EDIT PEAK LIST NO OF PEAKS PEAKS SUBRANGES MARGIN FINAL MEAS TIME AUTOMATIC FINAL INTER ACTIVE RUN FINAL MEAS Side menu ESH2-Z5 | ESH3-Z5 | ENV 4200 | ENV 216 | OFF PRESCAN PHASES | FINAL PHASES RUN FINAL MEAS...
Page 26: Receiver Frequency
R&S ESPI Instrument Functions Receiver Mode For description of the softkeys see the following menus: “Operation on a Discrete Frequency – FREQ RECEIVER FREQUENCY Key” on page 4.14 “Selection of the Measurement Function – ADD TO PEAK LIST MEAS Key” on page 4.22 DETECTOR “Selecting the Detector”...
Page 27: Operation On A Discrete Frequency - Freq Key
R&S ESPI Instrument Functions Receiver Mode 4.5.1 Operation on a Discrete Frequency – FREQ Key FREQ The FREQ key opens the FREQUENCY menu for setting the receive frequency in manual operation and the frequency axis for scan display. RECEIVER FREQUENCY STEPSIZE AUTO COARSE AUTO FINE...
Page 28 R&S ESPI Instrument Functions Receiver Mode STEPSIZE = The STEPSIZE = FREQ softkey sets the step size to a value equal to the receive FREQ frequency. This function is especially useful during measurements of the signal harmonic con- tent, because, when entering the receiver frequency, the receiver frequency of another harmonic is selected with each stroke of the STEP key.
Page 29: Level Display And Rf Input Configuration - Ampt Key
R&S ESPI Instrument Functions Receiver Mode 4.5.2 Level Display and RF Input Configuration – AMPT Key The AMPT key is used to set the input attenuation, the Preamplifier (only with option ESPI-B2), the auto range function and the Display Unit. In addition, the level display range for the scan can be set.
Page 30 R&S ESPI Instrument Functions Receiver Mode The PREAMP (ON OFF) softkey switches the preamplifier on and off. PREAMP (ON OFF) Default value is OFF. The softkey is only available with option R&S ESPI-B2, Preselector.. Remote command: INP:GAIN:STAT ON | OFF The 10 DB MIN (ON OFF) softkey determines whether the 10 dB setting of the 10 DB MIN (ON OFF)
Page 31: Display Unit
R&S ESPI Instrument Functions Receiver Mode Display Unit UNIT UNIT dBµV dBµA dBpW dBpT The UNIT softkey opens a submenu in which the desired units for the level axis can be selected: dBµV, dBm, dBµA, dBpW or dBpT. Default setting is dBµV. In general, a receiver measures the signal voltage at the RF input.
Page 32: Setting The If Bandwidth - Bw Key
R&S ESPI Instrument Functions Receiver Mode The GRID MIN LEVEL softkey activates the entry of the minimum level of the dis- GRID MIN play range. Allowed values are: LEVEL - 200 ≤ GRID MIN LEVEL ≤ + 200 dB - GRID RANGE Remote command: DISP:WIND:TRAC:Y:SPAC LOG DISP:WIND:TRAC:Y:BOTT 0DBM...
Page 33: Filter Type
R&S ESPI Instrument Functions Receiver Mode When the quasipeak detector is switched on, a fixed bandwidth is preset depending on the frequency. The coupling of the IF bandwidth to the frequency range with acti- vated quasipeak, CISPR Average or CISPR RMS detecor can be cancelled using the CISPR RBW UNCOUPLED softkey (see below).
Page 34: 1List Of Available Channel Filters
R&S ESPI Instrument Functions Receiver Mode • EMI (6dB) The resolution bandwidths are implemented by Gaussian filters with the set 6 dB bandwidth and correspond approximately to the pulse bandwidth. For bandwidths up to 120 kHz, digital bandpass filters are used. Remote command: BAND:TYPE PULS •...
Page 35: Selection Of The Measurement Function - Meas Key
R&S ESPI Instrument Functions Receiver Mode Filter Bandwidth Filter Application Type CFILter 12.5 CFILter CDMAone CFILter ETS300 113 (20 kHz channels) CFILter CFILter ETS300 113 (25 kHz channels) kHz, α=0.35 TETRA CFILter CFILter kHz, α=0.35 24.3 IS 136 CFILter CFILter CDPD, CDMAone CFILter CFILter...
Page 36 R&S ESPI Instrument Functions Receiver Mode Softkeys in the MEAS menu: MEAS RECEIVER FREQUENCY ADD TO PEAK LIST DETECTOR MAX PEAK MIN PEAK QUASIPEAK AVERAGE CISPR AVERAGE CISPR RMS CISPR RBW UNCOUPLED MEAS TIME DEMOD DEMOD (ON OFF) AM | FM SQUELCH THRESHOLD THRESHOLD...
Page 37 R&S ESPI Instrument Functions Receiver Mode ESH2-Z5 | ESH3- Z5 | ENV 4200 | ENV 216 | OFF PRESCAN PHASES | FINAL PHASES RUN SCAN FINAL MEAS PEAK SEARCH EDIT PEAK LIST EDIT FREQUENCY INSERT DELETE SORT BY FREQUENCY SORT BY DELTALIMIT ASCII FILE EXPORT DECIM SEP...
Page 38 R&S ESPI Instrument Functions Receiver Mode RECEIVER FREQUENCY ADD TO PEAK LIST CONTINUOUS BARGRAPH SINGLE BARGRAPH The RECEIVER FREQUENCY softkey activates the entry field of the receiver fre- RECEIVER quency. FREQUENCY The tuning frequency has to be set to at least twice the IF bandwidth. When the tuning frequency is lower than twice the IF bandwidth, the IF bandwidth is automatically reduced so that this condition is met again.
Page 39: 1Selecting The Detector
R&S ESPI Instrument Functions Receiver Mode 4.5.4.1 Selecting the Detector Six different detectors can be selected for weighting the receive signal. • The max peak detector yields the largest sample values of the levels measured during the set measurement time. •...
Page 40 R&S ESPI Instrument Functions Receiver Mode • The quasipeak detector yields the maximum detected value weighted to CISPR 16. Depending on the set frequency, the R&S ESPI automatically selects the detectors and IF bandwidths defined for bands A, B and C/D listed in the following table: Band A Band B...
Page 41: 2Setting The Measurement Time
R&S ESPI Instrument Functions Receiver Mode MIN PEAK The MIN PEAK softkey activates the min peak detector. Remote command: DET:REC NEG QUASIPEAK The QUASIPEAK softkey selects the quasipeak detector. The IF bandwidth is adapted as a function of the frequency range. The coupling of the IF bandwidth to the frequency range can be cancelled using the softkey CISPR RBW UNCOUPLED.
Page 42 R&S ESPI Instrument Functions Receiver Mode Bandwidth Shortest measurement time Shortest measurement time AV, RMS PK+, PK- ≤ 10 Hz 1 sec 10 msec 100 Hz 100 msec 1 msec 200 Hz ... 300 Hz 50 msec 1 msec 1 kHz ... 3 KHz 10 msec 0,1 msec 9 kHz ...
Page 43: 3Af Demodulators
R&S ESPI Instrument Functions Receiver Mode After a frequency change or a modification of the attenuation, the R&S ESPI waits until the lowpass has settled before the measurement time starts. The measurement time is selected depending on the IF bandwidth and the characteristics of the signal to be measured.
Page 44: 4Data Reduction And Peak List
R&S ESPI Instrument Functions Receiver Mode DEMOD The DEMOD (ON OFF) softkey switches demodulation on/off. (ON OFF) Remote command: DEM OFF (DEModulation ON automatically switched on with DEM AM | FM) AM | FM The AM and FM softkeys can be activated one at a time. They are used to set the desired demodulation type, FM or AM.
Page 45 R&S ESPI Instrument Functions Receiver Mode Subrange Subrange maximum Limit line Acceptance line G H z 0 ,0 3 0 ,1 1 ,0 Fig. 4.13 Dividing the spectrum into eight subranges Data reduction is of crucial importance. It is initiated by pressing a key after the pres- can and then automatically.
Page 46: 5Automatic Final Measurement With Threshold Scan
R&S ESPI Instrument Functions Receiver Mode Two values should therefore be defined for this purpose: • the number of subranges or highest level values (NO OF PEAKS in the range from 1 to 500; default value: 25) • the acceptance margin (MARGIN; default value: 6 dB). It is valid for all limit lines. As an alternative method, it is possible to preset a list of frequencies at which the final measurements are performed.
Page 47 R&S ESPI Instrument Functions Receiver Mode DECIM SEP PAGE UP PAGE DOWN NO OF PEAKS NB/BB DISCR MARGIN FINAL MEAS TIME AUTOMATIC FINAL INTER ACTIVE RUN SCAN Side menu ESH2-Z5 | ESH3-Z5 | ENV 4200 | ENV 216 | PRESCAN PHASES | FINAL PHASES RUN SCAN THRESHOLD...
Page 48 R&S ESPI Instrument Functions Receiver Mode MARGIN The MARGIN softkey activates the entry field of the margin, i.e. of an additional acceptance threshold for the determination of the peak list. The limit line currently used is shifted by this amount for defining the maxima. The range of values is -200 dB to 200 dB.
Page 49 R&S ESPI Instrument Functions Receiver Mode Out-of-limit value for INTERACTIVE If an out-of-limit value is detected, the R&S ESPI automatically goes to the HOLD SCAN state and starts the final measurement. The HOLD FINAL MEAS Sequence submenu comes up. On completion of the final measurement, for INTER ACTIVE the R&S ESPI continues the prescan, and the HOLD SCAN submenu is displayed again.
Page 50 R&S ESPI Instrument Functions Receiver Mode PEAK The PEAK SEARCH softkey starts the determination of the subrange maxima list SEARCH from the available scan results. The procedure can be repeated as often as desired to try out different settings of margin and number of subranges. Remote command: :CALC:PEAK The following table shows the peak list which is determined by the peak search func-...
Page 51 R&S ESPI Instrument Functions Receiver Mode INSERT The INSERT softkey creates an empty line above the current cursor position. Remote command: DELETE The DELETE softkey erases the complete line at the cursor position. Before dele- tion, a message appears requesting confirmation. Remote command: SORT BY The softkey SORT BY FREQUENCY sorts the table in a descending order accord-...
Page 52 R&S ESPI Instrument Functions Receiver Mode Structure of the ASCII file Table 4-1 RECEIVER mode, final measurement data – File header Content of file Description Type; R&S ESPI; Instrument model Version;2.32; Firmware version Date;03.Aug 2004; Date record storage date Mode;Receiver; Instrument operating mode Start;10000;Hz Start/stop of the display range.
Page 53 R&S ESPI Instrument Functions Receiver Mode Example for exported final measurement data Type;R&S ESPI; Version;2.23; Date;03.Mar 08; Mode;Receiver; Start;150000.000000;Hz Stop;30000000.000000;Hz x-Axis;LOG; Scan Count;1; Transducer;; Scan 1: Start;150000.000000;Hz Stop;30000000.000000;Hz Step;4000.000000;Hz RBW;9000.000000;Hz Meas Time;0.001000;s Auto Ranging;OFF; RF Att;10.000000;dB Auto Preamp;OFF; Preamp;0.000000;dB TRACE 1 FINAL: Trace Mode;CLR/WRITE;...
Page 54 R&S ESPI Instrument Functions Receiver Mode PEAKS The PEAKS SUBRANGES softkey defines the search method with which maxima SUBRANGES are searched for within a scan. PEAKS Determination of a specific number of peak values relative to the limit lines with the level values being independent of their fre- quency spectral distribution.
Page 55 R&S ESPI Instrument Functions Receiver Mode Sequence for RUN FINAL MEAS FINAL MEAS The RUN FINAL MEAS softkey starts the final measurement sequence as described below. The HOLD FINAL MEAS submenu is called. Dependent on the selected measurement mode (AUTOMATIC FINAL or INTER ACTIVE) for the final measurement, two different submenus of the HOLD FINAL MEAS menu are displayed.
Page 56 R&S ESPI Instrument Functions Receiver Mode INTER The INTERACTIVE softkey selects the interactive mode for the final measurement ACTIVE as described above. Remote command: :FME:AUTO OFF MEASURE The MEASURE softkey continues with the final measurement. The final measure- ment starts at the next frequency entry on the peak list or at a marked frequency if one or several lines have been skipped with the SKIP FREQUENCY softkey.
Page 57: 6Selection Of Detectors For Final Measurement
R&S ESPI Instrument Functions Receiver Mode GET MAXHOLD The GET MAXHOLD softkey accepts the highest level measured during the HOLD SCAN state as a result for the final measurement and continues the prescan. (The level value in question is displayed as a small bar in the bargraph.) Remote command: MEASURE The MEASURE softkey continues with the final measurement.
Page 58 R&S ESPI Instrument Functions Receiver Mode Fig. 4.14 Results of prescan and final measurement Automatic Control of Line Impedance Stabilization Networks The selected phases are controlled during the prescan and the final measurement via the USERPORT with the LISN switched on. Only one phase and one PE setting (1 out of n) can be selected for the prescan.
Page 59 R&S ESPI Instrument Functions Receiver Mode In the side menu, the following softkeys are available: FINAL MEAS ESH2-Z5 | ESH3-Z5 | ENV 4200 | ENV 216 | PRESCAN PHASES | PHASE N | PHASE L1 | FINAL PHASES PHASE L2 | PHASE L3 PE GROUNDED / PE FLOATING RUN FINAL MEAS...
Page 60 R&S ESPI Instrument Functions Receiver Mode protective earth conductor choke switched off, PE GROUNDED PE FLOATING protective earth conductor choke switched on. Remote command: :INP:LISN:PEAR GRO |FLO Settings made in the PRESCAN PHASES menu are immediately output at the user port.
Page 61: Frequency Scan And Time Domain Scan - Sweep Key
R&S ESPI Instrument Functions Receiver Mode When the R&S ESPI is used inside the shielded room, the filter configuration is omitted. The cable EZ-14 is then used for controlling the R&S ESH3-Z5, the cable EZ-13 for controlling the R&S ESH2-Z5, and the cable EZ-21 for controlling the R&S ENV4200.
Page 62 R&S ESPI Instrument Functions Receiver Mode Transducer factors or transducer sets and limit lines can be defined and displayed separately and are not part of the scan data record. The scanned frequency range is defined by the start and stop frequency set inde- pendently of the scan table (SCAN TABLE table or FREQUENCY menu).
Page 63: 2Display Of Measurement Results
R&S ESPI Instrument Functions Receiver Mode 4.5.5.2 Display of Measurement Results Full-screen or split-screen mode can be selected for result display. In the full-screen mode, the result diagram covers the whole screen area. In split-screen mode, the upper half of the screen displays the frequency and level readout, i.e.
Page 64 R&S ESPI Instrument Functions Receiver Mode In the SCAN table, the scan subranges are defined. Each scan range is specified by start frequency, stop frequency, step width and the measurement parameters that are valid for this range. The scan can be performed as a single scan or continuously (softkeys SINGLE SCAN and CONTINUOUS SCAN).
Page 65 R&S ESPI Instrument Functions Receiver Mode Scan Start - start frequency of display range Range is f to f - 10 Hz This value can also be set in the FREQ menu (START softkey). Remote command: FREQ:STAR 20 MHz Scan Stop - stop frequency of display range Range is f + 10 Hz to f This value can also be set in the FREQ menu (STOP softkey).
Page 66 R&S ESPI Instrument Functions Receiver Mode Stop - Entry of stop frequency The stop frequency of a subrange must be equal to or greater than the start fre- quency of the subrange. On entering the stop frequency, the preceding scan range is – if necessary – adapted automatically to avoid overlapping of scan ranges.
Page 67 R&S ESPI Instrument Functions Receiver Mode R&S ESPI automatically sets the input attenuation as a function of the signal level. The input attenuation setting of the scan table is used. Remote command: SCAN1:INP:ATT:AUTO OFF RF Atten - Entry of a fixed RF attenuation The RF attenuation can be set separately for each subrange.
Page 68: 4Running A Scan
R&S ESPI Instrument Functions Receiver Mode FREQ AXIS For details refer to “FREQ AXIS (LIN LOG)” on page 4.55. (LIN LOG) 10dB MIN For details refer to “10 DB MIN (ON OFF)” on page 4.17 (AMPT menu). (ON OFF) RUN PRE- For details refer to “Triggering the Scan –...
Page 69: Triggering The Scan - Trig Key
R&S ESPI Instrument Functions Receiver Mode At the beginning of the scan, R&S ESPI sets up the diagram as specified in the scan table and starts the scan in the selected mode (SINGLE or CONTINUOUS). With SINGLE selected, R&S ESPI performs a single scan and stops at the end fre- quency.
Page 70 R&S ESPI Instrument Functions Receiver Mode To indicate that a trigger mode other than FREE RUN has been set, the enhance- ment label TRG is displayed on the screen. If two windows are displayed, TRG appears next to the appropriate window. TRIG FREE RUN VIDEO...
Page 71: Marker Functions - Mkr Key
R&S ESPI Instrument Functions Receiver Mode 4.5.7 Marker Functions – MKR Key MARKER (1 2 3 4) MARKER (NORM DELTA) MKR->TRACE ALL MARKER OFF The MARKER 1|2|3|4 softkey selects the corresponding marker and activates it. MARKER (1 2 3 4) MARKER 1 is always the normal marker.
Page 72: Change Of Settings Via Markers - Mkr-> Key
R&S ESPI Instrument Functions Receiver Mode A marker can only be enabled when at least one trace in the corresponding window is visible. If a trace is turned off, the corresponding markers and marker functions are also deactivated. If the trace is switched on again (VIEW, CLR/WRITE;..), the markers along with coupled functions will be restored to their original positions provided the markers have not been used on another trace.
Page 73 R&S ESPI Instrument Functions Receiver Mode NEXT MIN NEXT MIN RIGHT NEXT MIN LEFT SETTINGS COUPLED SEARCH LIMITS LEFT LIMIT RIGHT LIMIT THRESHOLD SEARCH LIMIT OFF PEAK EXCURSION SELECT The SELECT MARKER softkey activates the numerical selection of the marker in the data entry field.
Page 74 R&S ESPI Instrument Functions Receiver Mode The TUNE TO MARKER softkey sets the receiver frequency to the marker fre- TUNE TO quency. MARKER Remote command: :CALC:MARK:FUNC:CENT The MARKER TRACK softkey couples the current receive frequency to the marker MARKER TRACK frequency.
Page 75 R&S ESPI Instrument Functions Receiver Mode The NEXT MIN RIGHT softkey sets the active marker/delta marker to the next NEXT MIN higher minimum value to the right of the current marker position on the correspond- RIGHT ing trace. Remote command: CALC:MARK:MIN:RIGH CALC:DELT:MIN:RIGH The NEXT MIN LEFT softkey sets the active marker/delta marker to the next higher...
Page 76: Marker Functions - Mkr Fctn Key
R&S ESPI Instrument Functions Receiver Mode The PEAK EXCURSION softkey activates an entry box for selecting the minimum PEAK amount by which a signal level must decrease/increase before it is recognized by EXCURSION the NEXT PEAK and NEXT MIN search functions as a maximum or minimum. Input values from 0 to 80 dB are allowed, the resolution being 0.1 dB.
Page 77: Selection And Setting Of Traces - Trace Key
R&S ESPI Instrument Functions Receiver Mode The ZOOM OFF softkey switches off the zoomed representation. ZOOM Remote command: :DISP:TRAC:X:ZOOM OFF The MKR−>TRACE softkey places the marker on a new trace. The trace is selected MKR−>TRACE via a data entry field. Only those traces can be selected which are visible on the screen in the same window.
Page 78: 1Selection Of Trace Function
R&S ESPI Instrument Functions Receiver Mode 4.5.10.1 Selection of Trace Function The trace functions are subdivided as follows: • Display mode of trace (CLEAR/WRITE, VIEW and BLANK) • Evaluation of the trace as a whole (AVERAGE, MAX HOLD and MIN HOLD) •...
Page 79 R&S ESPI Instrument Functions Receiver Mode The measurement detector for the individual display modes can be selected directly by the user. The default setting is trace 1 in the overwrite mode (CLEAR / WRITE) and detector MAX PEAK is selected, trace 2 is also in the overwrite mode (CLEAR / WRITE) and detector AVERAGE is selected, trace 3 is switched off (BLANK).
Page 80 R&S ESPI Instrument Functions Receiver Mode The DETECTOR softkey opens a submenu to select the detector. DETECTOR The detector type is set for the trace scan and may be independently selected for each trace. For description of detector types see section “Selection of Detector”...
Page 81 R&S ESPI Instrument Functions Receiver Mode FINAL The FINAL CISPR RMS softkey selects the weighting rms detector according to CISPR RMS CISPR 16-1-1 for the final measurement. Remote command: :DET:FME CRMS The PEAK LIST (ON OFF) softkey switches on and off the indication of the peak list PEAK LIST (ON OFF) or of the final measurement results.
Page 82 R&S ESPI Instrument Functions Receiver Mode Table 4-2 Example – File header: File contents Description Type;R&S ESPI Instrument model Version;1.00; Firmware version Date;10.Nov 08; Date of data set storage Mode;Receiver; Instrument mode Start;150000.000000;Hz Start/stop of the display range. Stop;1000000000.000000;Hz Unit: Hz x-Axis;LOG;...
Page 83 R&S ESPI Instrument Functions Receiver Mode Table 4-4 Example – Data section of the file, Trace File contents Description Trace 1: Selected trace Trace Mode;CLR/WRITE; Trace mode: CLR/WRITE, MAXHOLD x-Unit;Hz; Unit of x values: Hz for span > 0 y-Unit;dBµV; Unit of y values: dB*/V/A/W depending on the selected unit Values;26863;...
Page 84: Analyzer Mode
R&S ESPI Instrument Functions Analyzer Mode 4.6 Analyzer Mode The analyzer mode is activated by pressing the SPECTRUM hotkey (see also sec- tion “Mode Selection – Hotkey Bar” on page 4.9) The SPECTRUM hotkey selects the mode for spectrum analysis, the so-called ana- SPECTRUM lyzer mode.
Page 85 R&S ESPI Instrument Functions Analyzer Mode CENTER The CENTER softkey opens the window for manually entering the center frequency. The allowed range of values for the center frequency is: • for the frequency domain (span >0): minspan / 2 ≤ f ≤...
Page 86 R&S ESPI Instrument Functions Analyzer Mode MANUAL The MANUAL softkey activates the window for entering a fixed step size. Remote command: FREQ:CENT:STEP 120MHz Softkeys in time domain: 0.1 * RBW The 0.1 * RBW softkey sets the step size for the center frequency entry to 10% of the resolution bandwidth.
Page 87: Frequency Offset
R&S ESPI Instrument Functions Analyzer Mode The STOP softkey activates the window for entering the stop frequency. STOP The allowed range of values for the stop frequency is: minspan ≤ f ≤ f stop stop frequency stop minspan smallest selectable span (10 Hz) max.
Page 88: Setting The Frequency Span - Span Key
R&S ESPI Instrument Functions Analyzer Mode SELECT TRACE The SELECT TRACE softkey selects the trace on which signal tracking is to be per- formed. Remote command: CALC:MARK:FUNC:STR:TRAC 1 4.6.2 Setting the Frequency Span – SPAN Key The SPAN key opens a menu which offers various options for setting the span. The entry of the span (SPAN MANUAL softkey) is automatically active for span >...
Page 89: Level Display Setting And Rf Input Configuration - Ampt Key
R&S ESPI Instrument Functions Analyzer Mode After changing the span setting the LAST SPAN softkey activates the previous set- LAST SPAN ting. With this function a fast change between overview measurement (FULL SPAN) and detailed measurement (manually set center frequency and span) is possible. Only values >...
Page 90 R&S ESPI Instrument Functions Analyzer Mode RF INPUT (50W 75W) The REF LEVEL softkey allows the reference level to be input in the currently active REF LEVEL unit (dBm, dBµV, etc.) Remote command: DISP:WIND:TRAC:Y:RLEV -60dBm The RANGE LOG 100 dB softkey sets the level display range to 100 dB. RANGE LOG 100 dB Remote command:...
Page 91 R&S ESPI Instrument Functions Analyzer Mode UNIT dBmV dBµV dBµΑ dBµW VOLT AMPERE WATT The UNIT softkey opens a submenu to select the unit for the level axis. The default setting is dBm. In general, the R&S ESPI measures the signal voltage at the RF input. The level dis- play is calibrated in rms values of an unmodulated sinewave signal.
Page 92 R&S ESPI Instrument Functions Analyzer Mode The RF ATTEN AUTO softkey sets the RF attenuation automatically as a function of RF ATTEN the selected reference level. AUTO This ensures that the optimum RF attenuation desired by the user is always used. RF ATTEN AUTO is the default setting.
Page 93: Setting The Bandwidths And Sweep Time - Bw Key
R&S ESPI Instrument Functions Analyzer Mode The RF INPUT (50 Ω 75 Ω) softkey switches the input impedance of the instrument RF INPUT Ω Ω between 50 Ω (= default setting) and 75 Ω. The setting 75 Ω should be used if the input impedance (50 Ω) is transformed to 75 Ω...
Page 94 R&S ESPI Instrument Functions Analyzer Mode RES BW MANUAL VIDEO BW MANUAL SWEEPTIME MANUAL RES BW AUTO VIDEO BW AUTO SWEEPTIME AUTO COUPLING RATIO RBW / VBW SINE [1/3] RBW / VBW PULSE [0.1] RBW / VBW NOISE [10] RBW / VBW MANUAL SPAN / RBW AUTO [50] SPAN / RBW MANUAL DEFAULT COUPLING...
Page 95 R&S ESPI Instrument Functions Analyzer Mode For filter type CHANNEL or RRC, the bandwidth is selected from the list of available channel filters given in section “Filter Types” on page 4.85. u and d scroll through this list. For data entry, the cursor keys The manual input mode of the resolution bandwidth is indicated by a green asterisk (*) on the display.
Page 96 R&S ESPI Instrument Functions Analyzer Mode The RES BW AUTO softkey is only available in the frequency domain (span > 0 Hz). The softkey is deactive in the time domain. Remote command: BAND:AUTO ON The VIDEO BW AUTO softkey couples the video bandwidth to the resolution band- VIDEO BW AUTO width.
Page 97 R&S ESPI Instrument Functions Analyzer Mode The COUPLING RATIO softkey opens a submenu for selection of the coupling ratios. COUPLING RATIO RBW / VBW SINE [1/3] RBW / VBW PULSE [0.1] RBW / VBW NOISE [10] RBW / VBW MANUAL SPAN / RBW AUTO [50] SPAN / RBW MANUAL When the default setting is active, i.e.
Page 98: 1Filter Types
R&S ESPI Instrument Functions Analyzer Mode RBW / VBW The RBW/VBW MANUAL softkey activates the manual input of the coupling ratio. MANUAL The resolution bandwidth/video bandwidth ratio can be set in the range 0.001 to 1000. Remote command: BAND:VID:RAT 10 This setting is only effective for the VBW AUTO selection in the main menu.
Page 99: 2List Of Available Channel Filters
R&S ESPI Instrument Functions Analyzer Mode • FFT: An FFT is performed. For that purpose, the filtered IF signal is digitized and then transformed into the spectral domain via FFT. The transformation range depends on the selected filter bandwidths and can be set between 4 kHz to 50 kHz.
Page 100 R&S ESPI Instrument Functions Analyzer Mode Filter Bandwidth Filter Type Application 100 Hz CFILter 200 Hz CFILter 300 Hz CFILter 500 Hz CFILter 1 kHz CFILter 3 kHz CFILter 3.4 kHz CFILter 4 kHz CFILter DAB, Satellite 7.5 kHz CFILter 8.5 kHz CFILter ETS300 113 (12.5 kHz channels)
Page 101: Sweep Settings - Sweep Key
R&S ESPI Instrument Functions Analyzer Mode Fig. 4.2 shows the response of the linear and the logarithmic average detector for pulse-modulated signals. Fig. 4.2 Reponses of the linear and the logarithmic average detectors as a function of pulse repetition frequency (PRF) for pulse-modulated signals with pulse durations of 400 ns and 1 ms.
Page 102 R&S ESPI Instrument Functions Analyzer Mode The SINGLE SWEEP softkey starts n sweeps after triggering. The number of SINGLE sweeps is determined by the SWEEP COUNT softkey. SWEEP When working in the split-screen mode, the frequency ranges of the two windows are swept one after the other.
Page 103: Triggering The Sweep - Trig Key
R&S ESPI Instrument Functions Analyzer Mode The number of sweeps set in the TRACE menu is the same as that in the SWEEP menu. If SINGLE SWEEP is selected, the measurement stops after the selected number of sweeps has been performed. Remote command: SWE:COUN 64 The SWEEP POINTS softkey selects the number of measurement samples...
Page 104 R&S ESPI Instrument Functions Analyzer Mode GATE SETTINGS GATE MODE (LEVEL EDGE) POLARITY (POS NEG) GATE DELAY GATE LENGTH SWEEPTIME Side menu TV TRIGGER TV TRIGGER ON | OFF SETTINGS VERT SYNC VERT SYNC ODD FIELD / VERT SYNC EVEN FIELD HOR SYNC VIDEO POL POS | NEG LINES 625 | 525...
Page 105 R&S ESPI Instrument Functions Analyzer Mode For this purpose, the R&S ESPI uses a level detector at the second intermediate fre- quency. The detector threshold can be selected in a range between –30 dBm and - 10 dBm at the input mixer. The resulting trigger level at the RF input is calculated via the following formula: ≤...
Page 106 R&S ESPI Instrument Functions Analyzer Mode Fig. 4.3 Pulsed signal GATE OFF Fig. 4.4 TDMA signal with GATE ON The gated-sweep mode is activated by the GATED TRIGGER softkey. The setting of the mode takes place in the GATE SETTINGS submenu. GATED The GATED TRIGGER softkey switches the sweep mode with gate on and off.
Page 107 R&S ESPI Instrument Functions Analyzer Mode The length of the gate signal defines when the sweep is to be interrupted. Here a dif- ferentiation is made between edge-triggered and level-triggered modes: in case of edge triggering the gate length can be set via the GATE LENGTH softkey, while in case of level triggering the gate length depends on the length of the gate signal.
Page 108 R&S ESPI Instrument Functions Analyzer Mode When quitting the submenu, the program will return to the frequency domain pro- vided it was active before. The original span is restored so the desired measurement can now be performed with the accurately set gate. Remote command: GATE MODE The GATE MODE (LEVEL EDGE) softkey selects the trigger mode.
Page 109 R&S ESPI Instrument Functions Analyzer Mode Measurement example The modulation spectrum of a GSM 900 signal is to be measured using the gated- sweep function. The signal is generated by a Signal Generator whose RF output is directly connected to the RF input of R&S ESPI. Settings on the Signal Generator: FREQ: 802 MHz...
Page 110 R&S ESPI Instrument Functions Analyzer Mode Fig. 4.6 Setting GATE DELAY and GATE LENGTH in time domain by means of lines GD and GL On quitting the GATE SETTINGS menu, R&S ESPI returns to the previous screen. The TV and RF Trigger softkey is available with option R&S ESPI-B6 and offers the TV TRIGGER following submenu.
Page 111: Selection And Setting Of Traces - Trace Key
R&S ESPI Instrument Functions Analyzer Mode 4.6.7 Selection and Setting of Traces – TRACE Key The R&S ESPI is capable of displaying up to three different traces at a time in a dia- gram. A trace consists of a maximum of 501 pixels on the horizontal axis (frequency or time).
Page 112 R&S ESPI Instrument Functions Analyzer Mode VIEW BLANK SWEEP COUNT DETECTOR AUTO SELECT DETECTOR AUTO PEAK DETECTOR MAX PEAK DETECTOR MIN PEAK DETECTOR SAMPLE DETECTOR RMS DETECTOR AVERAGE DETECTOR QPK DETECTOR CISPR RMS DETECTOR CISPR AV TRACE MATH T1-T2->T1 | T1-T3->T1 TRACE POSITION TRACE MATH OFF Side menu...
Page 113 R&S ESPI Instrument Functions Analyzer Mode This is especially useful with modulated or impulsive signals. The signal spectrum is filled up upon each sweep until all signal components are detected in a kind of enve- lope. Pressing the MAX HOLD softkey again clears the trace memory and restarts the max hold mode.
Page 114 R&S ESPI Instrument Functions Analyzer Mode After completion of averaging, i.e. when the averaging length defined by SWEEP COUNT is attained, a running averaging is continued with CONTINUOUS SWEEP according to the following formula: ) Trace ⋅ – MeasValue -------------------------------------------------------------------------------- - Trace where Trace...
Page 115 R&S ESPI Instrument Functions Analyzer Mode See following section “Selection of Detector” on page 4.105. DETECTOR See following section “Mathematical Functions for Traces” on page 4.110. TRACE MATH The MIN HOLD softkey activates the min peak detector. R&S ESPI saves for each MIN HOLD sweep the smallest of the previously stored/currently measured values in the trace memory.
Page 116 R&S ESPI Instrument Functions Analyzer Mode This low average value is usually corrected in noise power measurements by a 2.5 dB factor. Therefore the R&S ESPI offers the selection of linear averaging. The trace data are delogarithmized prior to averaging, then averaged and logarithmized again for display on the screen.
Page 117 R&S ESPI Instrument Functions Analyzer Mode Different language versions of evaluation programs may require a different han- dling of the decimal point. It is therefore possible to select between separators '.' (decimal point) and ',' (comma) using the DECIM SEP softkey. Example - file header File contents Description...
Page 118 R&S ESPI Instrument Functions Analyzer Mode Example - data section of the file File contents Description Trace 1:;; Selected trace x-Unit;Hz; Unit of x values: Hz with span > 0; s with span = 0; dBm/dB with statistics measurements y-Unit;dBm; Unit of y values: dB*/V/A/Ω...
Page 119 R&S ESPI Instrument Functions Analyzer Mode The peak detectors compare the current level value with the maximum or minimum level from the previously sampled data. When the number of samples defined by the instrument setting is reached, the samples are combined in the displayed pixels. Each of the 501 pixels of the display thus represents 1/501 of the sweep range and contains all single measurements (frequency samples) in this subrange in com- pressed form.
Page 120 R&S ESPI Instrument Functions Analyzer Mode Average detector The average detector forms the average value of the measured values within a pixel. To this effect, R&S ESPI uses the linear voltage after envelope detection. The sam- pled linear values are summed up and the sum is divided by the number of samples (= linear average value).
Page 121: Auto Select
R&S ESPI Instrument Functions Analyzer Mode DETECTOR AUTO SELECT DETECTOR AUTO PEAK DETECTOR MAX PEAK DETECTOR MIN PEAK DETECTOR SAMPLE DETECTOR RMS DETECTOR AVERAGE DETECTOR QPK DETECTOR CISPR RMS DETECTOR CISPR AV The DETECTOR softkey opens a submenu for selecting the detector for the selected trace.
Page 122 R&S ESPI Instrument Functions Analyzer Mode DETECTOR The DETECTOR MAX PEAK softkey activates the max peak detector. It is recom- MAX PEAK mended for measurement of impulsive signals. Remote command: DET POS DETECTOR The DETECTOR MIN PEAK softkey activates the min peak detector. Weak sine- MIN PEAK wave signals become clearly visible in noise using this detector.
Page 123: 2Mathematical Functions For Traces
R&S ESPI Instrument Functions Analyzer Mode DETECTOR The DETECTOR CISPR AV softkey activates the CISPR average detector. CISPR AV Remote command: DET CAV The DETECTOR CISPR RMS and DETECTOR CISPR AV softkeys are only avail- able in zero span mode. The bandwidth is limited to the values 200 Hz, 9 kHz, 120 kHz and 1 MHz.
Page 124 R&S ESPI Instrument Functions Analyzer Mode The term "Calibration" formerly used for the integrated self alignment was often mistaken for the "true" calibration of the instrument at the test set in production and in service. It is therefore no longer used although it appears in the abbreviated form in the name of keys ("CAL...").
Page 125: Markers And Delta Markers - Mkr Key
R&S ESPI Instrument Functions Analyzer Mode Remote command: CAL:RES? The softkeys PAGE UP and PAGE DOWN scroll one page forward or backward in PAGE UP | the CALIBRATION RESULTS table. They have no function when the table is closed. PAGE DOWN Remote command: 4.6.10 Markers and Delta Markers –...
Page 126 R&S ESPI Instrument Functions Analyzer Mode The MKR key calls a menu that contains all marker and delta marker standard func- tions. If no marker is active, MARKER 1 will be enabled and a peak search on the trace carried out. Otherwise, the data entry for the marker activated last is opened. MARKER (1 2 3 4) / MARKER (NORM DELTA) SIGNAL COUNT...
Page 127: 1Frequency Measurement With The Frequency Counter
R&S ESPI Instrument Functions Analyzer Mode Example [PRESET] R&S ESPI is set to the default setting. [MKR] On calling the menu, MARKER 1 is switched on ('1' highlighted in the softkey) and positioned on the maximum value of the trace. It is a normal marker and the MARKER NORMAL softkey is high- lighted.
Page 128 R&S ESPI Instrument Functions Analyzer Mode • The marker measures only the position of the pixel on the trace and infers the frequency of the signal from this value. The trace, however, contains only a limited number of pixels. Depending upon the selected span, each pixel may contain many measurement values, which therefore limits the frequency resolution.
Page 129 R&S ESPI Instrument Functions Analyzer Mode Additionally, the REFERENCE FIXED softkey opens the submenu where it is possi- ble to determine manually a reference point with level and frequency, time or x-axis level, to define a level offset or deactivate the reference point. The REFERENCE FIXED function is useful for the measurement of the harmonic suppression at small span (fundamental not represented).
Page 130 R&S ESPI Instrument Functions Analyzer Mode [MKR] MARKER 1 is switched on ('1' highlighted in the softkey) and set to the signal peak. [MARKER 2] MARKER 2 is switched on and automatically defined as the delta marker (DELTA is highlighted on MARKER NORM DELTA softkey).
Page 131 R&S ESPI Instrument Functions Analyzer Mode Example Three traces are presented on the screen. The marker is always on trace 1 when switching on. [MKR ->TRACE] "2"<ENTER> The marker jumps to trace 2 but remains on the previous frequency or time. [MKR ->TRACE] "3"<ENTER>...
Page 132: Marker Functions - Mkr Fctn Key
R&S ESPI Instrument Functions Analyzer Mode [SIGNAL COUNT] The frequency counter is switched on. R&S ESPI counts the frequency of the signal at the marker position with a resolu- tion of 1 kHz. The counted frequency is indicated in the marker info field.
Page 133: 1Activating The Markers
R&S ESPI Instrument Functions Analyzer Mode MKR FCTN SELECT MARKER PEAK NOISE MEAS PHASE NOISE PH NOISE (ON OFF) REF POINT LEVEL REF POINT LVL OFFSET REF POINT FREQUENCY PEAK SEARCH AUTO PEAK SEARCH N DB DOWN PEAK LIST NEW SEARCH SORT MODE (FREQ LEVEL) PEAK EXCURSION LEFT LIMIT | RIGHT LIMIT...
Page 134 R&S ESPI Instrument Functions Analyzer Mode 4.6.11.2 Measurement of Noise Density The NOISE MEAS softkey switches the noise measurement for the active marker on NOISE MEAS or off. The corresponding marker becomes the NORMAL marker. During noise measurement, the noise power density is measured at the position of the marker.
Page 135: 3Phase Noise Measurement
R&S ESPI Instrument Functions Analyzer Mode In time domain mode, the measured values are averaged versus time (after a sweep). Remote command: CALC:MARK:FUNC:NOIS ON; CALC:MARK:FUNC:NOIS:RES? Example: Measurement of inherent R&S ESPI noise [PRESET] The R&S ESPI is set to default setting. [MARKER] Marker 1 is switched on and set to the maximum value of the dis- played spectrum.
Page 136 R&S ESPI Instrument Functions Analyzer Mode No marker enabled: [MKR FCTN] MARKER 1 is enabled and set to peak. [PHASE NOISE] MARKER 1 becomes the reference marker, MARKER 2 the delta marker; frequency = frequency of the reference marker. The delta marker is the active marker, i.e.
Page 137 R&S ESPI Instrument Functions Analyzer Mode REF POINT The REF POINT LEVEL softkey activates an entry box for the input of a reference LEVEL level other than the reference marker level. The function is identical to that of the softkey with the same name in the MARKER menu (MKR). Remote command: CALC:DELT1:FUNC:FIX:RPO:Y -10dB REF POINT LVL...
Page 138: 4Measurement Of The Filter Or Signal Bandwidth
R&S ESPI Instrument Functions Analyzer Mode 4.6.11.4 Measurement of the Filter or Signal Bandwidth The N DB DOWN softkey activates the temporary markers T1 and T2 which are n N DB DOWN dB below the active reference marker. Marker T1 is placed to the left and marker T2 at the right of the reference marker.
Page 139 R&S ESPI Instrument Functions Analyzer Mode • LEVEL: sorting according to level The search range can be restricted by means of the LEFT LIMIT, RIGHT LIMIT and THRESHOLD softkeys. The definition of the peak values can be modified using the PEAK EXCURSION softkey.
Page 140: 6Af Demodulation
R&S ESPI Instrument Functions Analyzer Mode LEFT LIMIT | The LEFT LIMIT and RIGHT LIMIT softkeys define the vertical lines F1/F2 in the fre- RIGHT LIMIT quency domain (span > 0) and T1/T2 in the time domain (span = 0) between which the search is carried out.
Page 141 R&S ESPI Instrument Functions Analyzer Mode The MARKER DEMOD softkey switches on the audio demodulator and calls a sub- menu in which the demodulation mode and the duration of the demodulation can be selected. Remote command: CALC:MARK1:FUNC:DEM ON MKR DEMOD The MKR DEMOD (ON OFF) softkey switches the demodulation on/off.
Page 142: 7Selecting The Trace
R&S ESPI Instrument Functions Analyzer Mode 4.6.11.7 Selecting the Trace The MKR->TRACE softkey sets the active marker to different traces. Only those MKR−>TRACE traces can be selected which are visible on the screen in the same window. The function of the softkey is identical to that of the softkey with the same name in the MKR->...
Page 143 R&S ESPI Instrument Functions Analyzer Mode PEAK EXCURSION 2. side menu AUTO MAX PEAK AUTO MIN PEAK The SELECT MARKER softkey activates the numerical selection of the marker in SELECT the data entry field. Delta marker 1 is selected by input of ' 0 '. MARKER Remote command: CALC:MARK1 ON...
Page 144 R&S ESPI Instrument Functions Analyzer Mode Example A spectrum is displayed with a large span after PRESET. A signal off the center is to be examined in detail: [PRESET] R&S ESPI is set to the default setting. [MKR->] MARKER 1 is switched on and automatically jumps to the largest signal of the trace.
Page 145 R&S ESPI Instrument Functions Analyzer Mode THRESHOLD The THRESHOLD softkey defines the threshold line. The threshold line represents a limit for the level range of the max. search at the lower end and that of the min. search at the upper end. Remote command: CALC:THR -20dBm CALC:THR ON...
Page 146 R&S ESPI Instrument Functions Analyzer Mode The NEXT MIN softkey sets the active marker/delta marker to the next higher mini- NEXT MIN mum of the selected trace. Remote command: CALC:MARK:MIN:NEXT CALC:DELT:MIN:NEXT NEXT MIN The NEXT MIN RIGHT softkey sets the active marker/delta marker to the next higher minimum right of the current marker position on the selected trace.
Page 147: Peak: Signal
R&S ESPI Instrument Functions Analyzer Mode Fig. 4.8 Examples of level measurement with different settings of PEAK EXCURSION The following table lists the signals as indicated by marker numbers in the diagram above, as well as the minimum of the amplitude decrease to both sides of the signal: signal # min.
Page 148 R&S ESPI Instrument Functions Analyzer Mode Order of signals detected: PEAK: Signal 1 NEXT PEAK: Signal 2 NEXT PEAK: Signal 2 (no further signal detected) PEAK: Signal 1 NEXT PEAK LEFT: Signal 1 (no further signal detected) NEXT PEAK RIGHT: Signal 2 NEXT PEAK RIGHT: Signal 2 (no further signal detected) With 6 dB peak excursion, all signals will be detected with NEXT PEAK and NEXT PEAK RIGHT / NEXT PEAK LEFT.
Page 149: Power Measurements - Meas Key
R&S ESPI Instrument Functions Analyzer Mode 4.6.13 Power Measurements – MEAS Key With its power measurement functions the R&S ESPI is able to measure all the nec- essary parameters with high accuracy in a wide dynamic range. A modulated carrier is almost always used (except e.g. SSB-AM) for high-frequency transmission of information.
Page 150: 1Power Measurement In Time Domain
R&S ESPI Instrument Functions Analyzer Mode • Spurious emissions (“SPURIOUS EMISSIONS” on page 4.182) • Spectrum Emission Mask (“SPECTRUM EMISSION MASK” on page 4.200) • order intercept (“TOI” on page 4.179) • Harmonic distortion (“HARMONIC DISTOR” on page 4.180) The above measurements are carried out alternatively. 4.6.13.1 Power Measurement in Time Domain With the aid of the power measurement function, the R&S ESPI determines the...
Page 151 R&S ESPI Instrument Functions Analyzer Mode MAX HOLD (ON OFF) AVERAGE (ON OFF) NUMBER OF SWEEPS The TIME DOM POWER softkey activates the power measurement in the time domain and opens a submenu for configuration of the power measurement. The submenu allows selection of the type of power measurement (rms or mean power), the settings for max hold and averaging as well as the definition of limits.
Page 152 R&S ESPI Instrument Functions Analyzer Mode The number of sweeps over which the average or the maximum value is calculated is set with the NUMBER OF SWEEPS softkey. Remote command: CALC:MARK:FUNC:SUMM:RMS ON CALC:MARK:FUNC:SUMM:RMS:RES? MEAN The MEAN softkey switches on the calculation of the mean value from the points of the displayed trace or a segment of it.
Page 153: Set Reference
R&S ESPI Instrument Functions Analyzer Mode STOP LIMIT The STOP LIMIT softkey activates the entry of the upper limit of the evaluation range. Remote command: CALC:MARK:X:SLIM:RIGH <value> The SET REFERENCE softkey sets the power values currently measured as refer- REFERENCE ence values for the calculation of the mean value (MEAN) and the rms value (RMS).
Page 154 R&S ESPI Instrument Functions Analyzer Mode NUMBER OF The NUMBER OF SWEEPS softkey activates the entry of the number of sweeps for SWEEPS maximum or average value calculation. SINGLE SWEEP mode The R&S ESPI performs sweeps until the selected number of sweeps is reached and stops then.
Page 155: 2Channel And Adjacent-Channel Power Measurements
R&S ESPI Instrument Functions Analyzer Mode [TIME DOM POWER] Select power measurement in the time domain. The R&S ESPI calculates the mean power from the points of the whole trace. The submenu for configuration of the power measurement is opened. MEAN is already switched on.
Page 156 R&S ESPI Instrument Functions Analyzer Mode For some standards, the channel power and the adjacent-channel power are to be weighted by means of a root-raised cosine filter corresponding to a receive filter. This type of filtering is switched on automatically for both methods on selecting the standard (e.g.
Page 157 R&S ESPI Instrument Functions Analyzer Mode Fig. 4.9 Screen display of adjacent-channel power measurement using the IBW method Fig. 4.10 Screen display of adjacent-channel power measurement using the time-domain method Limit values for the adjacent-channel power can be defined for the measurement. If limit checking is switched on, a pass/fail information indicating that the power has been exceeded is displayed during the measurement in the table in the lower half of the screen.
Page 158 R&S ESPI Instrument Functions Analyzer Mode With the CP/ACP measurement switched on the functions SPLIT SCREEN and FULL SCREEN are inhibited. The channel configuration is defined in the MEAS - CHAN PWR ACP or the MEAS - MULT CARR ACP menu. CHAN PWR CP/ACP (ON OFF) MULT CARR...
Page 159 R&S ESPI Instrument Functions Analyzer Mode The CHAN PWR ACP and MULT CARR ACP softkeys activate channel or adjacent- channel power measurement either for a single carrier signal (CHAN PWR ACP) or for several carrier signals (MULT CARR ACP), depending on the current measure- ment configuration.
Page 160 R&S ESPI Instrument Functions Analyzer Mode CDMA2000 DS CDMA2000 MC1 CDMA2000 MC3 TD-SCDMA WLAN 802.11a WLAN 802.11b WIMAX WIBRO USER () NADC IS136 TETRA CDPD For the R&S ESPI, the channel spacing is defined as the distance between the center frequency of the adjacent channel and the center frequency of the transmis- sion channel.
Page 161 R&S ESPI Instrument Functions Analyzer Mode As of firmware version 4.4x it is possible to customize ACP User Standards. The user defined ACP standard can be activated via the entry USER in the standard selection list. The related configuration file is displayed in brackets. To select another user defined standard, use the softkey SELECT USER STD.
Page 162 R&S ESPI Instrument Functions Analyzer Mode The RMS detector is used for obtaining correct power measurement results. There- fore this requires no software correction factors. Measured values are output as a list. The powers of the transmission channels are output in dBm, the powers of the adjacent channels in dBm (CP/ACP ABS) or dB (CP/ACP REL).
Page 163 R&S ESPI Instrument Functions Analyzer Mode Resolution bandwidth (RBW) To ensure both an acceptable measurement speed and the required selection (to suppress spectral components outside the channel to be measured, especially of the adjacent channels), the resolution bandwidth must not be selected too small or too large.
Page 164: Select User
R&S ESPI Instrument Functions Analyzer Mode SELECT USER The softkey SELECT USER STD selects and activates a user defined ACP stan- dard. After selecting the standard, the user defined atndard becomes available for selec- tion in the ACP standard list (USER list item). The corresponding filename is shown in brackets.
Page 165: 3Setting The Channel Configuration
R&S ESPI Instrument Functions Analyzer Mode 4.6.13.3 Setting the Channel Configuration CP/ACP NO. OF ADJ CHAN CONFIG NO. OF TX CHAN CHANNEL BANDWIDTH CHANNEL SPACING ACP REF SETTINGS CP/ACP (ABS REL) CHAN PWR / HZ POWER MODE CLEAR/WRITE MAX HOLD ADJUST SETTINGS Side menu ACP LIMIT CHECK...
Page 166: Channel Bandwidth
R&S ESPI Instrument Functions Analyzer Mode The channel power, the power of the upper and lower adjacent channel, the power of the next higher and lower channel (alternate channel 1) and of the next but one higher and lower adjacent channel (alternate channel 2) are mea- sured.
Page 167 R&S ESPI Instrument Functions Analyzer Mode With the IBW method (FAST ACP OFF), the channel bandwidth limits are marked by two vertical lines right and left of the channel center frequency. It can in this way be visually checked whether the entire power of the signal under test is within the selected channel bandwidth.
Page 168 R&S ESPI Instrument Functions Analyzer Mode If the spacings are not equal, the channel distribution according to the center frequency is as follows: • Odd number of TX channels: The middle TX channel is centered to center frequency. • Even number of TX channels: The two TX channels in the middle are used to calculate the frequency between those two channels.
Page 169 R&S ESPI Instrument Functions Analyzer Mode ACP REF The ACP REF SETTINGS softkey opens a table for selecting the transmission chan- SETTINGS nel to which the adjacent-channel relative power values should be referenced. TX CHANNEL 1 - 12 Selection of one of the channels. MIN POWER TX The transmission channel with the lowest power is used as CHANNEL...
Page 170: Adjust Settings
R&S ESPI Instrument Functions Analyzer Mode CHAN PWR / HZ The CHAN PWR / HZ softkey toggles between the measurement of the total chan- nel power and the measurement of the channel power referenced to a 1-Hz band- width. ⋅ The conversion factor is ----------------------------------------------- 10 lg...
Page 171 R&S ESPI Instrument Functions Analyzer Mode Video bandwidth: VBW ≥ 3 × RBW • • Detector: RMS detector Trace math and trace averaging functions are switched off. The reference level is not influenced by ADJUST SETTINGS. It can be separately adjusted with ADJUST REF LVL.
Page 172 R&S ESPI Instrument Functions Analyzer Mode Remote command: CALC:LIM:ACP ON CALC:LIM:ACP:ACH 0dB,0dB CALC:LIM:ACP:ACH:STAT ON CALC:LIM:ACP:ACH:ABS –10dBm,-10dBm CALC:LIM:ACP:ACH:ABS:STAT ON CALC:LIM:ACP:ALT1 0dB,0dB CALC:LIM:ACP:ALT1:STAT ON CALC:LIM:ACP:ALT1:ABS –10dBm,-10dBm CALC:LIM:ACP:ALT1:ABS:STAT ON CALC:LIM:ACP:ALT2 0dB,0dB CALC:LIM:ACP:ALT2:STAT ON CALC:LIM:ACP:ALT2:ABS –10dBm,-10dBm CALC:LIM:ACP:ALT2:ABS:STAT ON WEIGHTING Opens a submenu to control the weighting filter. FILTER Some of the digital standards specify weighting filters to be taken into account.
Page 173 R&S ESPI Instrument Functions Analyzer Mode WEIGHT ADJ Defines the roll-off factor of the weighting filter for adjacent and alternate channels. ALPHA Remote command: POW:ACH:FILT:ALPH:ACH 0.3 POW:ACH:FILT:ALPH:ALT 0.3 ADJ REFLVL Defines an additional level offset to the measured mean power to be taken into OFFSET account for the analyzer's reference level setting.
Page 174 R&S ESPI Instrument Functions Analyzer Mode [ADJUST SETTINGS] Set the optimum span, resolution bandwidth (RBW), video bandwidth (VBW) and detector automatically for the mea- surement. The absolute channel power and the relative power of the adjacent channels are displayed on the screen.
Page 175 R&S ESPI Instrument Functions Analyzer Mode [ADJUST SETTINGS] Automatically set the optimum span (= 5 MHz), resolution bandwidth (RBW = 30 kHz), video bandwidth (VBW = 300 kHz) and detector (RMS) for the measurement. The abso- lute channel power and the relative power of the adjacent channels and alternate channels are displayed on the screen.
Page 176: Occupied Bandwidth
R&S ESPI Instrument Functions Analyzer Mode Measurement of Occupied Bandwidth An important characteristics of a modulated signal is its occupied bandwidth. In a radio communications system for instance the occupied bandwidth must be limited to enable distortion-free transmission in adjacent channels. The occupied bandwidth is defined as the bandwidth containing a defined percentage of the total transmitted power.
Page 177 R&S ESPI Instrument Functions Analyzer Mode ADJUST REF The ADJUST REF LVL softkey adjusts the reference level of the R&S ESPI to the measured total power of the signal. The softkey is activated after the first sweep with the measurement of the occupied bandwidth has been completed and the total power of the signal is thus known.
Page 178 R&S ESPI Instrument Functions Analyzer Mode Some of the measurement specifications (e.g. PDC, RCR STD-27B) require mea- surement of the occupied bandwidth using a peak detector. The detector setting of the R&S ESPI has to be changed accordingly then. Example Measurement of occupied bandwidth of a PDC signal at 800 MHz, level 0 dBm [PRESET] Set the R&S ESPI to the default setting.
Page 179: 4Measurement Of Signal Amplitude Statistics
R&S ESPI Instrument Functions Analyzer Mode 4.6.13.4 Measurement of Signal Amplitude Statistics Digital modulated signals are similar to white noise within the transmit channel, but are different in their amplitude distribution. In order to transmit the modulated signal without distortion all amplitudes of the signal have to be transmitted linearly, e.g. from the output power amplifier.
Page 180 R&S ESPI Instrument Functions Analyzer Mode Fig. 4.13 Display of the complementary cumulative distribution function (CCDF) Alternate to the histogram display of the APD the Complementary Cumulative Distri- bution Function (CCDF) can be displayed. It shows the probability of an amplitude exceeding a specific value.
Page 181 R&S ESPI Instrument Functions Analyzer Mode The SIGNAL STATISTIC softkey opens a submenu for measurement of signal SIGNAL statistics. STATISTIC APD (ON OFF) CCDF (ON OFF) PERCENT MARKER RES BW NO OF SAMPLES SCALING X-AXIS REF LEVEL X-AXIS RANGE Y-UNIT (% ABS) Y-AXIS MAX VALUE Y-AXIS MIN VALUE ADJUST SETTINGS...
Page 182 R&S ESPI Instrument Functions Analyzer Mode PERCENT If the CCDF function is active, the PERCENT MARKER softkey allows to position MARKER marker 1 by entering a probability value. Thus, the power which is exceeded with a given probability can be determined very easily. If marker 1 is in the switched-off state, it will be switched on automatically.
Page 183 R&S ESPI Instrument Functions Analyzer Mode X-AXIS RANGE The X-AXIS RANGE softkey changes the level range to be covered by the statistics measurement selected. The function is identical to softkey RANGE LOG MANUAL in AMPT menu. Remote command: CALC:STAT:SCAL:X:RANG <value> Y-UNIT (% ABS) The softkey Y-UNIT (% ABS) defines the scaling type on the y-axis.
Page 184 R&S ESPI Instrument Functions Analyzer Mode • y-axis lower limit: 1E-6 Remote command: CALC:STAT:PRES MEAN PWR Defines the relative X position of the mean power value for the CCDF measurement. POSITION The default position is 0% (left corner of the grid). This softkey is available if the CCDF measurement is switched on.
Page 185 R&S ESPI Instrument Functions Analyzer Mode [CCDF ON /OFF] Switch on measurement of the complementary cumulative distribution function. The R&S ESPI switches to zero span mode. The power of the signal and the CCDF is calculated for the number of samples selected. With the CCDF func- tion sample detector and video bandwidth are set auto- matically.
Page 186 R&S ESPI Instrument Functions Analyzer Mode The I/Q data capturing is repeated until the configured number of valid samples is reached. If the active gate period is outside the I/Q capture buffer or the resulting gate time is zero the measurement will not reach its end. In this case, the range start and stop values have to be checked.
Page 187: 5Measurement Of Carrier/Noise Ratio C/N And C/No
R&S ESPI Instrument Functions Analyzer Mode Gated statistics configuration example: A statistics evaluation has to be done over the useful part of the signal between t3 and t4. The period of the GSM signal is 4.61536 ms External positive trigger slope Begin of burst (after 25 µs) Begin of useful part, to be used for statistics (after 40 µs) End of useful part, to be used for statistics (after 578 µs)
Page 188 R&S ESPI Instrument Functions Analyzer Mode 2. The carrier is inside the channel examined: In this case, the measurement must be performed in two steps. First, the reference measurement is performed with the carrier being active. This is done by switching on either the C/N or the C/No measurement and waiting for the end of the next measurement run.
Page 189: 6Measurement Of The Am Modulation Depth
R&S ESPI Instrument Functions Analyzer Mode CHANNEL The CHANNEL BANDWIDTH softkey opens a window for selecting the measure- BANDWIDTH ment channel bandwidth. The default setting is 14 kHz. The specified channel bandwidth allows the optimal setting of the measurement parameters of the R&S ESPI using ADJUST SETTINGS. Remote command: SENS:POW:ACH:BWID 14kHz ADJUST...
Page 190: 7Measurement Of The Third Order Intercept (Toi)
R&S ESPI Instrument Functions Analyzer Mode Measurement example The AM modulation depth of a carrier modulated with 1 kHz is to be measured at 100 MHz. [PRESET] The R&S ESPI is set to the default setting. [CENTER: 100 MHz] The center frequency is set to 100 MHz. [SPAN: 5 kHz] The span is set to 5 kHz.
Page 191 R&S ESPI Instrument Functions Analyzer Mode Level a D3 P I2 P I1 f ∆ f ∆ f ∆ Frequency Fig. 4.14 Intermodulation products P and P The intermodulation product at f is generated by mixing the 2nd harmonic of useful signal P and signal P , the intermodulation product at f...
Page 192 R&S ESPI Instrument Functions Analyzer Mode The intercept point is the fictitious level where the two lines intersect. It cannot be measured directly since the useful level is previously limited by the maximum two port output power. It can be calculated from the known line slopes and the measured spacing a at a given level according to the following formula.
Page 193: 8Harmonic Measurement
R&S ESPI Instrument Functions Analyzer Mode The TOI measurement is based on positioning the markers 3 and 4 onto the position TOI MKR CALC of the calculated intermodulation products. The accuracy of these frequency calcula- SRCH tions depend on the precision of the two carrier frequencies found with peak search. The softkey TOI MKR CALC SRCH allows to switch between the calculated marker position (CALC) and perfoming a local peak search near the expected frequencies (SRCH) instead of the faster position calculation.
Page 194 R&S ESPI Instrument Functions Analyzer Mode Trace read out via the normal trace subsystem. The first harmonic frequency can be read out via the center frequency command. THD value comma separated in % and dB: Remote command: CALC:MARK:FUNC:HARM:DIST? TOT Comma separated list of harmonic levels, for each harmonic one value: Remote command: CALC:MARK:FUNC:HARM:LIST? NO.
Page 195: 9Measuring Spurious Emissions
R&S ESPI Instrument Functions Analyzer Mode 4.6.13.9 Measuring Spurious Emissions All real amplifiers also generate unwanted RF products outside the assigned fre- quency band. These spurious emissions are usually measured across a wide fre- quency range, for example from 9 kHz to 7 GHz. The analyzer settings are specified for each frequency range.
Page 196 R&S ESPI Instrument Functions Analyzer Mode The frequency range where measurements are actually performed is set by the start and stop frequency parameters of the R&S ESPI; these parameters are indepen- dent of the sweep ranges. It is thus possible to define sweep ranges for a measure- ment task that can be stored and reloaded and to quickly and easily set the frequency range to be actually measured by means of two parameters;...
Page 197 R&S ESPI Instrument Functions Analyzer Mode In the SWEEP LIST table, the individual sweep ranges are set. Range Start: Start frequency of the range Range Stop: Stop frequency of the range Filter Type: NORMAL (3dB), EMI (6dB), CHANNEL, RRC RBW: Resolution filter bandwidth VBW: Video filter bandwidth...
Page 198 R&S ESPI Instrument Functions Analyzer Mode DELETE The DELETE RANGE softkey deletes the current range. All higher ranges are set RANGE back by one. Remote command: LIST:RANGe<1…20>:DELete NEXT RANGES The NEXT RANGES softkey activates the displays of the next higher subranges, i.e. 6 to 10, 11 to 15 or 16 to 20.
Page 199 R&S ESPI Instrument Functions Analyzer Mode LIST The LIST EVALUATION softkey activates or deactivates the spurious emission mea- EVALUATION surement LIST EVALUATION. The peak search evaluation is automatically done during measurement and the results are displayed in a table in the lower part of the screen.
Page 200 R&S ESPI Instrument Functions Analyzer Mode MARGIN The MARGIN softkey activates entry of the margin, i.e. the acceptance threshold for determining the peak list. The limit line is shifted by this value when the maximums are determined. The value range extends from -200 dB to 200 dB. The default value is 6 dB.
Page 201 R&S ESPI Instrument Functions Analyzer Mode Table 4-1 Example: ASCII export table - file header File contents Explanation Type;R&S ESPI; Model Version;3.90; Firmware version Date;02.Aug 2006; Storage date of data set Mode;ANALYZER; SPURIOUS; Operating mode of the device Start;9000.000000;Hz Start/stop of the span Stop;7000000000.000000;Hz Unit: Hz x-Axis;LIN;...
Page 202: 10Spectrum Emission Mask Measurement
R&S ESPI Instrument Functions Analyzer Mode DECIM SEP In the case of floating-point numbers, use the DECIM SEP softkey to select between '.' (decimal point) and ',' (comma) as the decimal delimiter for the ASCII FILE EXPORT function. By selecting the decimal delimiter, various language versions of evaluation pro- grams (e.g.
Page 203 R&S ESPI Instrument Functions Analyzer Mode 4.190 Operating Manual 1164.6607.12 - 02 www.valuetronics.com...
Page 204 R&S ESPI Instrument Functions Analyzer Mode Operating Manual 1164.6607.12 - 02 4.191 www.valuetronics.com...
Page 205 R&S ESPI Instrument Functions Analyzer Mode 4.192 Operating Manual 1164.6607.12 - 02 www.valuetronics.com...
Page 206 R&S ESPI Instrument Functions Analyzer Mode Operating Manual 1164.6607.12 - 02 4.193 www.valuetronics.com...
Page 207 R&S ESPI Instrument Functions Analyzer Mode Format Description of Spectrum Emission Mask XML files The files for importing range settings are in XML format and therefore obey the rules of the XML standard. Below, the child nodes, attributes, and structure defined for the data import is described.
Page 208 R&S ESPI Instrument Functions Analyzer Mode • The third element is the Range element, which in turn is embedded in the PowerClass element. It carries the settings information of the range. There have to be at least three defined ranges: one reference range and at least one range to either side of the reference range.
Page 209 R&S ESPI Instrument Functions Analyzer Mode • The PowerClass element is structered as follows: <PowerClass Index="n"> <StartPower Unit="dBm" InclusiveFlag="true" Value="StartPowerValue"/> <StopPower Unit="dBm" InclusiveFlag="false" Value="StopPowerValue"/> <DefaultLimitFailMode>Limit Fail Mode</DefaultLimitFailMode> <Range Index="n">  ...
Page 210 R&S ESPI Instrument Functions Analyzer Mode <Amplitude> <ReferenceLevel Unit="dBm" Value="Value"/> <RFAttenuation Mode="Auto" Unit="dB" Value="Value"/> <Preamplifier State="State"/> </Amplitude> </Range> Table 4-3 Attributes and child nodes of the BaseFormat element Child Node Attribute Value Parameter Mandator Description FileFormatVersion 1.0.0.0 Date "YYYY-MM-DD HH:MM:SS" Date in ISO 8601 format Name <string>...
Page 211 R&S ESPI Instrument Functions Analyzer Mode Child Node Attribute Value Parameter Mandatory Description DefaultLimitFailMode Absolute | Relative | Absolute and Relative | Absolute or Relative Table 4-5 Attributes and child nodes of the Range element (normal ranges) Child Node Attribute Value Parameter Mandatory...
Page 212 R&S ESPI Instrument Functions Analyzer Mode Child Node Attribute Value Parameter Mandatory Description Bandwidth <bandwidth in Hz> Type NORMal | CFILter | RRC | FFT | NOISe | PULSe Bandwidth <bandwidth in Hz> Detector NEG | POS | SAMP | RMS | No (if specified, it has AVER to be equal in all...
Page 213: Spectrum Emission Mask
R&S ESPI Instrument Functions Analyzer Mode The softkey menu of the Spectrum Emission Mask measurement contains the fol- SPECTRUM lowing softkeys. EMISSION MASK SPEC EM (ON OFF) SWEEP LIST EDIT SWEEP LIST INS BEFORE RANGE INS AFTER RANGE DELETE RANGE NEXT RANGES PREVIOUS RANGES REFERENCE RANGE...
Page 214: Auto, Manual
R&S ESPI Instrument Functions Analyzer Mode TX BANDWIDTH RRC FILT (ON OFF) ALPHA BT START MEAS STOP MEAS EDIT SWEEP Configures the sweep list. LIST • Range Start Start frequency of the range (relative to Center Frequency = Carrier Frequency) Remote command: ESP:RANG1:STAR 1000000 •...
Page 215 R&S ESPI Instrument Functions Analyzer Mode • Sweep Time Shows the current sweep time. The R&S ESPI automatically calculates the sweep time if AUTO mode is selected and displays the corresponding value in this field. If the field is edited, the sweep time mode is automatically set to MANUAL. Remote command: ESP:RANG1:SWE:TIME 1 •...
Page 216 R&S ESPI Instrument Functions Analyzer Mode • Limit Check Sets the type of limit check for all ranges. ABSOLUTE: Checks only the defined absolute limits. RELATIVE: Checks only the relative limits. Relative limits are defined as relative to the measured power in the reference range. ABS &...
Page 217 R&S ESPI Instrument Functions Analyzer Mode NEXT RANGES Scrolls through the sweep list in forward direction if more than 5 ranges are defined. The first page shows Range 1 through 5, the second page shows Range 6 to 11 etc. PREVIOUS Scrolls through the sweep list in backwards direction if more than 5 ranges are RANGES...
Page 218 R&S ESPI Instrument Functions Analyzer Mode LIST EVAL Activates or deactivates the list evaluation. (ON OFF) A peak search evaluation is performed automatically during the measurement. The results are displayed in a table below the measurement diagram. By default, the list evaluation is active. The evaluation table shows the following results: •...
Page 219: Basic Settings
R&S ESPI Instrument Functions Basic Settings 4.7 Basic Settings In this section, all mode-independent functions are described. If a softkey is only available in a special mode, the corresponding mode is indicated in the softkey description. 4.7.1 Setup of Limit Lines and Display Lines – LINES Key Limit lines are used to define amplitude curves or spectral distribution boundaries on the display screen which are not to be exceeded.
Page 220: 1Selection Of Limit Lines
R&S ESPI Instrument Functions Basic Settings • In addition, commentary can be written for each limit line, e.g. a description of the application. Display lines are exclusively used to optically mark relevant frequencies or points in time (span = 0) as well as constant level values. It is not possible to check automati- cally whether the marked level values have been underranged or exceeded.
Page 221 R&S ESPI Instrument Functions Basic Settings The SELECTED LIMIT LINE display field provides information concerning the char- acteristics of the marked limit lines. In the LIMIT LINES table, the limit lines compatible to the settings of the active screen can be enabled. New limit lines can be specified and edited in the NEW LIMIT LINE and EDIT LIMIT LINE submenus, respectively.
Page 222 R&S ESPI Instrument Functions Basic Settings The SELECT LIMIT LINE softkey activates the LIMIT LINES table and the selection SELECT LIMIT bar jumps to the uppermost name in the table. LINE The following information is offered in the columns of the table: Enable the limit line.
Page 223 R&S ESPI Instrument Functions Basic Settings If LIM CHECK is set to OFF for all active limit lines, then the limit line check is not executed and the display window is activated. Remote command: CALC:LIM:STAT ON INIT;*WAI CALC:LIM:FAIL? Trace - Select the measurement curve to which the limit line is assigned. The selection of the measurement curve (trace) takes place in an entry window.
Page 224: 2Entry And Editing Of Limit Lines
R&S ESPI Instrument Functions Basic Settings This softkey does not have any effect on limit lines that represent absolute values for the y-axis. Remote command: CALC:LIM3:LOW:OFFS 3dB CALC:LIM3:UPP:OFFS 3dB 4.7.1.2 Entry and Editing of Limit Lines A limit line is characterized by •...
Page 225 R&S ESPI Instrument Functions Basic Settings • The frequencies/times for each data point must be entered in ascending order, however, for any single frequency/time, two data points may be input (vertical segment of a limit line). The data points are allocated in order of ascending frequency/time. Gaps are not allowed.
Page 226 R&S ESPI Instrument Functions Basic Settings NAME The NAME softkey enables the entry of characteristics in the table heading. Name - Enter name A maximum of 8 characters is permitted for each name. All names must be compat- ible with the MS DOS conventions for file names. The instrument stores all limit lines with the .LIM extension.
Page 227 R&S ESPI Instrument Functions Basic Settings An X offset with half the sweep time may be entered in order to shift the mask in the time domain into the center of screen. Remote command: CALC:LIM3:CONT:MODE ABS CALC:LIM3:UPP:MODE ABS CALC:LIM3:LOW:MODE ABS Unit - Select the vertical scale units for the limit line The selection of units takes place in a selection box.
Page 228 R&S ESPI Instrument Functions Basic Settings The preset value is at -200 dBm. The field is displayed if the value RELATIVE is entered in the field Y-SCALING. Remote command: CALC:LIM3:UPP:THR -30 dBm CALC:LIM3:LOW:THR -30 dBm Comment - Enter comments Comments are arbitrary, however, they must be less than 41 characters long. Remote command: CALC:LIM3:COMM "Upper limit"...
Page 229: 3Display Lines
R&S ESPI Instrument Functions Basic Settings In this manner, a new limit line can be easily generated based upon an existing limit line which has been shifted vertically and stored (SAVE LIMIT LINE softkey) under a new name (NAME softkey). Remote command: CALC:LIM3:CONT:UPP:SHIF 20dB CALC:LIM3:CONT:LOW:SHIF 20dB...
Page 230 R&S ESPI Instrument Functions Basic Settings 2nd press: The line is switched off (softkey with gray background). Initial situation: The line is on (softkey with green background) 1st press: The data input function is activated (softkey with red background). The position of the display line can be selected by means of the rotary knob, the step keys or a numerical entry in the appropriate field.
Page 231: Configuration Of Screen Display - Disp Key
R&S ESPI Instrument Functions Basic Settings Remote command: CALC:TLIN:STAT ON CALC:TLIN 10ms 4.7.2 Configuration of Screen Display – DISP Key The DISPLAY menu allows the configuration of the diagram display on the screen and also the selection of the display elements and colors. The POWER SAVE mode is also configured in this menu for the display.
Page 232: Full Screen
R&S ESPI Instrument Functions Basic Settings The DISP key opens the menu for configuring the screen display and selecting the DISP active diagram in SPLIT SCREEN mode. After switching to receiver mode, the default settings for R&S ESPI are: Split Screen Screen A: Receiver Bargraph Screen B:...
Page 233: Bar Graph
R&S ESPI Instrument Functions Basic Settings The SPLIT SCREEN softkey selects the display of two diagrams. The upper dia- SPLIT gram is designated SCREEN A, the lower diagram SCREEN B. SCREEN Switching between SCREEN A and SCREEN B is performed via the corresponding key in the hotkey bar.
Page 234 R&S ESPI Instrument Functions Basic Settings The BARGRAPH RESET softkey resets the stored maximum values of the bar BARGRAPH graph measurement. RESET The softkey is only available in receiver mode. Remote command: DISP:BARG:PHOL:RES The REF LEVEL COUPLED softkey switches the coupling of the reference level on REF LEVEL and off.
Page 235 R&S ESPI Instrument Functions Basic Settings SCREEN TITLE The SCREEN TITLE softkey activates the entry of a title for the active diagram A or B. It switches on or off a title that is already input. The length of the title is limited to max.
Page 236 R&S ESPI Instrument Functions Basic Settings On leaving the menu with the power-save mode in the activated state, the softkey is highlighted in color on returning to the menu and opens again the editor for the response time. Pressing again the key switches off the power-save mode. Remote command: DISP:PSAV ON DISP:PSAV:HOLD 15...
Page 237: Instrument Setup And Interface Configuration - Setup Key
R&S ESPI Instrument Functions Basic Settings SATURATION The SATURATION softkey activates the entry of the color saturation for the selected element. The range of inputs is from 0 to 100%. Remote command: DISP:CMAP3:HSL <hue>,<sat>,<lum> PREDEFINED The PREDEFINED COLORS softkey activates a table, with which the predefined COLORS colors for the display screen elements can be selected.
Page 238 R&S ESPI Instrument Functions Basic Settings SAVE TRD SET DELETE VIEW TRANSDUCER REFLVL ADJ AUTO MAN PAGE UP PAGE DOWN GENERAL SETUP GPIB GPIB ADDRESS ID STRING FACTORY ID STRING USER GPIB LANGUAGE IF GAIN (NORM PULS) SWEEP REP (ON OFF) COUPLING (FSP HP) USER PORT USER PORT (IN OUT)
Page 239 R&S ESPI Instrument Functions Basic Settings 1. Side menu CAL GEN 128 MHZ PULSE 10 kHz / PULSE 100 kHz /PULSE 200 kHz / PULSE 500 kHz /PULSE 1 MHz /PULSE 2 MHz /PULSE 4 MHz /PULSE 8 MHz / 2.
Page 240 R&S ESPI Instrument Functions Basic Settings • The SERVICE softkey opens a submenu in which special device functions and system information can be selected for servicing. The password required for service functions can be entered in this submenu. For details refer to section “SERVICE”...
Page 241: 3Preamplification And Preselection (Option R&S Espi-B2)
R&S ESPI Instrument Functions Basic Settings PHASE N / The PHASE N, PHASE L1, PHASE L2, and PHASE L3 softkeys select the phase of PHASE L1 / the V-network on which the RFI voltage is to be measured. PHASE L2 / RFI on phase N is measured.
Page 242 R&S ESPI Instrument Functions Basic Settings L P 1 5 0 k H z B P 1 5 0 k H z ... 2 M H z B P 2 ...8 M H z P re a m p lifie r B P 8 ...3 0 M H z 9 k H z ...3 G H z 9 k H z .
Page 243: 4Transducer
R&S ESPI Instrument Functions Basic Settings Filter band Min. sweep time for filter band 9 kHz to 150 kHz 150 kHz to 2 MHz 2 to 8 MHz 500 ms 8 to 30 MHz 50 ms 30 to 70 MHz 50 ms 70 to 150 MHz 50 ms...
Page 244 R&S ESPI Instrument Functions Basic Settings R&S ESPI distinguishes between transducer factor and transducer set. A trans- ducer factor takes the frequency response of a single transfer element, e.g. an antenna into consideration. A transducer set can summarize different transducer factors in several subranges (several transducer factors at the same time), e.g.
Page 245 R&S ESPI Instrument Functions Basic Settings If the active transducer factor is not defined for the entire sweep range, the values missing are replaced by zeroes. The TRANSDUCER softkey opens a submenu for editing existing transducer factors TRANSDUCER and sets or creating new transducer factors and sets. TRANSDUCER FACTOR TRANSDUCER SET NEW / EDIT...
Page 246: Transducer Set
R&S ESPI Instrument Functions Basic Settings Only one set or transducer can be activated. An already active transducer factor or set is switched off automatically if another one is switched on. An activated trans- ducer factor or set is marked with a check sign. TRANSDUCER The TRANSDUCER FACTOR softkey places the scrollbar on the position of the FACTOR...
Page 247 R&S ESPI Instrument Functions Basic Settings PAGE UP The PAGE UP softkey is used to scroll through large tables that cannot completely be displayed on the screen. PAGE DOWN The PAGE DOWN softkey is used to scroll through large tables that cannot com- pletely be displayed on the screen.
Page 248 R&S ESPI Instrument Functions Basic Settings Depending on the softkey selected, either the table with the data of the factor marked (EDIT TRD FACTOR softkey) or an empty table (NEW FACTOR softkey) is displayed. This table is empty except for the following entries: Unit: Interpolation: LIN for linear frequency scaling...
Page 249 R&S ESPI Instrument Functions Basic Settings Remote command: CORR:TRAN:UNIT <string> Entry of value The desired reference values for FREQUENCY and TDF/dB must be entered in ascending order of frequencies. After the frequency has been entered, the scrollbar automatically goes to the associated level value. The table can be edited after entry of the first value using the INSERT LINE and DELETE LINE softkeys.
Page 250: Insert Line
R&S ESPI Instrument Functions Basic Settings INSERT LINE The INSERT LINE softkey inserts an empty line above the marked reference value. When entering a new reference value in the line, the ascending order of frequencies must be taken into consideration, however. Remote command: DELETE LINE The DELETE LINE softkey deletes the marked reference value (complete line).
Page 251 R&S ESPI Instrument Functions Basic Settings Unit: Break: The characteristics of the set can be entered in the header field of the table, the sub- ranges in the columns of the set. Entry of the name Name Selection of unit Unit Activating the query when changing the subrange Break...
Page 252 R&S ESPI Instrument Functions Basic Settings The interruption is activated by setting Break to ON. Selection is by the ENTER key which toggles between ON and OFF (toggle function). Remote command: CORR:TSET:BRE ON|OFF Start - Entry of start frequency of subrange Stop - Entry of stop frequency of subrange The individual subranges have to be linked without a gap.
Page 253: General Setup
R&S ESPI Instrument Functions Basic Settings A maximum of 4 transducer factors can be switched on at the same time in each subrange. If none of them is switched on, 0 dB is assumed as a factor for the whole subrange.
Page 254: Gpib Language
R&S ESPI Instrument Functions Basic Settings SOFT FRONTPANEL Selecting the GPIB Address The GPIB softkey opens a submenu for setting the parameters of the remote-control GPIB interface. Remote command: GPIB ADDRESS The GPIB ADDRESS softkey enables the entry of the GPIB address. Valid addresses are 0 through 30.
Page 255 R&S ESPI Instrument Functions Basic Settings For 8566A/B, 8568A/B and 8594E, command sets A and B are available. Com- mand sets A and B differ in the rules regarding the command structure from the command structure of “SCPI”. Therefore, correct recognition of SCPI commands is not ensured in these operating modes.
Page 256 R&S ESPI Instrument Functions Basic Settings Remote command: SYST:LANG "SCPI" | "8560E" | "8561E" | "8562E" | "8563E" | "8564E" | "8565E" | "8566A" | "8566B" | "8568A" | "8568A_DC" | "8568B" | "8568B_DC" | "8591E" | "8594E" | "71100C" | "71200C" | "71209A"...
Page 257: Com Interface
R&S ESPI Instrument Functions Basic Settings USER PORT USER PORT (IN OUT) PORT 0 0/1 to PORT 7 0/1 The USER PORT softkey opens the submenu for setting the direction of the data transmission and for entering the values of the individual ports. USER PORT The USER PORT (IN OUT) softkey determines in which direction the interface (IN OUT)
Page 258 R&S ESPI Instrument Functions Basic Settings Baud – Data transmission rate The R&S ESPI supports baud rates between 110 and 128000 baud. The default set- ting is 9600 baud. Remote command: SYST:COMM:SER:BAUD 9600 Bits – Number of data bits per word For the transmission of text without special characters, 7 bits are adequate.
Page 259 R&S ESPI Instrument Functions Basic Settings Stop bits – Number of stop bits Available are 1 and 2. The default setting is 1 stop bit. Remote command: SYST:COMM:SER:SBIT 1 HW-Handshake – Hardware handshake protocol The integrity of data transmission can be improved by the use of a hardware hand- shake mechanism, which effectively prevents uncontrolled transmission of data and the resulting loss of data bytes.
Page 260 R&S ESPI Instrument Functions Basic Settings Owner – Assignment of the interface The serial interface can be assigned alternatively to the measuring instrument sec- tion or to the computer section. If the interface is assigned to one section of the instrument, it is not available to the other section.
Page 261: Configure Network
R&S ESPI Instrument Functions Basic Settings The CONFIGURE NETWORK softkey opens the following submenu: CONFIGURE NETWORK COMPUTER NAME IP ADDRESS SUBNET MASK DHCP (ON OFF) CONFIGURE NETWORK SHOW CONFIG The Network Configuration softkeys above are available from firmware Version 4.3x. Instruments shipped with Windows XP Service Pack1 require an additional instal- lation package (LXI installer) if the softkeys are not visible.
Page 262 R&S ESPI Instrument Functions Basic Settings CONFIGURE The CONFIGURE NETWORK softkey opens the dialog box with the network set- NETWORK tings. The softkey is used to modify an existing network configuration after the correspond- ing tabs are selected (see the Quick Start Guide 6, “...
Page 263 R&S ESPI Instrument Functions Basic Settings A PC keyboard with trackball (or mouse instead) is required for the installation/ configuration of the network support. The softkey is only available with built-in LAN interface R&S FSP-B16. For information on deactivating/activating the auto login mechanism see section “Logging on to the Network“...
Page 264 R&S ESPI Instrument Functions Basic Settings The available system memory is displayed at the bottom line. You can disable this memory checking by activating the function EXPERT MODE. Remote command: *OPT? OPTIONS INSTALL OPTION REMOVE OPTION INSTALL The INSTALL OPTION softkey opens the data entry for the license keycode of a OPTION firmware option.
Page 265 R&S ESPI Instrument Functions Basic Settings Display resolution When the display of the front-panel keys is switched on, the screen resolution of the instrument changes to 1024x768 pixels. Only a section of the total screen is then displayed on the LC display, which will automatically be shifted on mouse moves. In order to obtain a complete display of the user interface, an external monitor is to be plugged into the corresponding connector at the rear panel.
Page 266: System Info
R&S ESPI Instrument Functions Basic Settings 4.7.3.6 System Information The SYSTEM INFO softkey opens a submenu in which detailed information on mod- ule data, device statistics and system messages is displayed. SYSTEM INFO HARDWARE INFO STATISTICS SYSTEM MESSAGES CLEAR ALL MESSAGES Display of Module Data HARDWARE...
Page 267: System Messages
R&S ESPI Instrument Functions Basic Settings Display of Device Statistics The STATISTICS softkey opens the table STATISTICS. This table contains the STATISTICS model information, serial number, firmware version, and specifications version of the basic device. Additionally, the operating time of the instrument, the power-on cycles as well as attenuator switching cycles are displayed.
Page 268: Clear All Messages
R&S ESPI Instrument Functions Basic Settings If the number of error messages exceeds the capacity of the error buffer, the mes- sage appearing first is "Message buffer overflow". Remote command: SYST:ERR? CLEAR ALL The CLEAR ALL MESSAGES softkey deletes all messages in the table. MESSAGES The softkey is only available when table SYSTEM INFO is active.
Page 269 R&S ESPI Instrument Functions Basic Settings The SERVICE softkey opens a submenu for selection of the service function. The INPUT RF and INPUT CAL softkeys are mutually exclusive selection switches. Only one switch can be active at any one time. General Service Functions INPUT RF The INPUT RF softkey switches the input of the R&S ESPI to the input connector...
Page 270 R&S ESPI Instrument Functions Basic Settings D:\R_S\instr\log\IEC_CMDS.LOG Logging the commands may be extremely useful for debug purposes, e.g. in order to find misspelled keywords in control programs. If this softkey is activated, the R&S ESPI becomes slower. Remote command: EXPORT / The EXPORT DEV DATA softkey opens a dialog to export device specific data onto IMPORT DEV USB stick or floppy disk.
Page 271 R&S ESPI Instrument Functions Basic Settings Selftest SELFTEST The SELFTEST softkey initiates the selftest of the instrument modules. With this function the instrument is capable of identifying a defective module in case of failure. During the selftest a message box appears in which the current test and its result is shown.
Page 272 R&S ESPI Instrument Functions Basic Settings 4.7.3.8 Firmware Update For the latest firmware version refer to the Rohde & Schwarz internet site and down- load the most up-to-date firmware. A detailed description about performing the firmware update in the intrument is given in the release note, provided on this CD.
Page 273: Open Start Menu
R&S ESPI Instrument Functions Basic Settings Remote command: SYST:APPL:SREC ON 4.7.3.9 External Noise Source The NOISE SRC (ON OFF) softkey switches on or off the supply voltage for an NOISE SRC (ON OFF) external noise source which is connected to the NOISE SOURCE connector on the rear panel of the instrument.
Page 274: Cursor Left
R&S ESPI Instrument Functions Basic Settings NEW FOLDER PASTE SORT MODE NAME DATE EXTENSION SIZE 2 FILE LISTS Side menu FORMAT DISK For details on storing and loading instrument settings refer to the Quick Start Guide, chapter “ Storing and Loading Instrument Settings”.
Page 275 R&S ESPI Instrument Functions Basic Settings RECALL FILE The RECALL FILE softkey sets the focus on the Files field to choose a stored file to restore. SELECT PATH The SELECT PATH softkey sets the focus on the Path field and opens the pull-down list to choose the correct path to store the file.
Page 276: Select Items
R&S ESPI Instrument Functions Basic Settings Note that the command MMEM:SEL:SCD ON (Source Cal Data) is only available with option R&S ESPI-B09 or R&S ESPI-B10. The Save dialog box offers the following selectable data subsets in the Items field. These settings include: Current Settings •...
Page 277 R&S ESPI Instrument Functions Basic Settings DELETE FILE The DELETE FILE softkey sets the focus on the File Name field to enter the file name to be deleted. Alternatively the file to be deleted can be choosen from the Files list. A message box opens to confirm the deletion. Remote command: MMEM:DEL "test03"...
Page 278: File Manager
R&S ESPI Instrument Functions Basic Settings 4.7.4.2 Operating Concept of File Managers The FILE MANAGER softkey opens a menu for managing storage media and files. FILE MANAGER The designation and the letter of the current drive are displayed in the upper left cor- ner of the File Manager dialog.
Page 279: New Folder
R&S ESPI Instrument Functions Basic Settings EDIT PATH The EDIT PATH softkey activates the input of the directory which will be used in sub- sequent file operations. Use CURSOR UP / DOWN to select a drive and confirm your selection with ENTER. Open subdirectories by using CURSOR RIGHT, and use CURSOR LEFT to close them again.
Page 280 R&S ESPI Instrument Functions Basic Settings COPY The COPY softkey opens the help line editor to enter the target directory for a copy- ing process. The file is also copied into the clipboard and can be copied into a differ- ent directory at a later time by means of PASTE.
Page 281: Sort Mode
R&S ESPI Instrument Functions Basic Settings DELETE The DELETE softkey deletes the selected file. A confirmation query is displayed to avoid unintentional deletion of files. Remote command: MMEM:DEL "test01.hcp" MMEM:RDIR "D:\user\test" SORT MODE NAME DATE EXTENSION SIZE The SORT MODE softkey opens the submenu to select the sorting mode for the dis- played files.
Page 282: Format Disk
R&S ESPI Instrument Functions Basic Settings SIZE The SIZE softkey sorts the file list by size Remote command: 2 FILE LISTS The 2 FILE LISTS softkey opens a second window for the File Manager. The entry focus can be moved between the two windows by means of SCREEN A and SCREEN B hotkeys.
Page 283 R&S ESPI Instrument Functions Basic Settings Pressing one of the softkeys PRINT SCREEN, PRINT TRACE or PRINT TABLE in the HCOPY menu initiates the print job. The printer parameters defined in the DEVICE SETTINGS menu are used for setting up the printer configuration. All of the display items to be printed are written to the printer buffer.
Page 284 R&S ESPI Instrument Functions Basic Settings The PRINT TRACE softkey starts the output of all curves visible on the display PRINT TRACE screen without auxiliary information. Specifically, no markers or display lines are printed. Remote command: HCOP:ITEM:WIND:TRAC:STAT ON HCOP:IMM The PRINT TABLE softkey starts the output of all tables and info lists visible on the PRINT TABLE display screen without the measurement diagrams and other information lying behind.
Page 285 R&S ESPI Instrument Functions Basic Settings The COMMENT softkey opens the auxiliary line editor where the desired letters can be entered in the text field by means of rotary knob and cursor keys. After clicking the COMMENT softkey, the auxiliary line editor can be reached with d key.
Page 286 R&S ESPI Instrument Functions Basic Settings The COLORS softkey gives access to the submenu where the colors for the printout can be selected. To facilitate color selection, the selected color combination is dis- played when the menu is entered. The previous colors are restored when the menu is exited.
Page 287 R&S ESPI Instrument Functions Basic Settings SELECT The SELECT OBJECT softkey allows picture elements to be selected to change OBJECT their color setting. After selection, the PREDEFINED COLORS, BRIGHTNESS, TINT and SATURATION softkeys enable the user to change the colors or bright- ness, the hue and the color saturation of the element selected.
Page 288 R&S ESPI Instrument Functions Basic Settings PREDEFINED The PREDEFINED COLORS softkey opens a list from which predefined colors for COLORS the displayed elements can be selected: Remote command: HCOP:CMAP1 ... 26:PDEF <color> SET TO The SET TO DEFAULT softkey reactivates the default color setting (= OPTIMIZED DEFAULT COLOR SET).
Page 289 R&S ESPI Instrument Functions Tracking Generator – Option R&S FSP-B9 4.8 Tracking Generator – Option R&S FSP-B9 During normal operation (without a frequency offset), the tracking generator emits a signal exactly at the input frequency of the R&S ESPI. For frequency-converting measurements it is possible to set a constant frequency offset of ±150 MHz between the receive frequency of the R&S ESPI and the output signal of the tracking generator.
Page 290 R&S ESPI Instrument Functions Tracking Generator – Option R&S FSP-B9 POWER SWEEP POWER SWP ON/OFF START POWER STOP POWER Additional softkeys are available in the displayed menus for controlling an external generator if option External Generator Control R&S FSP-B10 is fitted. For detailed information see section “External Generator Control –...
Page 291: Transmission Measurement
R&S ESPI Instrument Functions Tracking Generator – Option R&S FSP-B9 The permissible setting range is -200 dB to +200 dB in steps of 0.1 dB. Positive off- sets apply to an amplifier and negative offsets to an attenuator subsequent to the tracking generator.
Page 292 R&S ESPI Instrument Functions Tracking Generator – Option R&S FSP-B9 information calibration reflection measurement (CAL REFL SHORT and CAL REFL OPEN) and its mechanisms, refer to section “Calibration of Reflection Measurement” on page 4.284. To carry out a calibration for transmission measurements the whole test setup is through-connected (THRU).
Page 293 R&S ESPI Instrument Functions Tracking Generator – Option R&S FSP-B9 4.8.2.2 Normalization NORMALIZE The NORMALIZE softkey switches the normalization on or off. The softkey is only available if the memory contains a correction trace. It is possible to shift the relative reference point within the grid using the REF VALUE POSITION softkey.
Page 294 R&S ESPI Instrument Functions Tracking Generator – Option R&S FSP-B9 Fig. 4.23 Normalized measurement, shifted with REF VALUE POSITION 50% Remote command: DISP:WIND:TRAC:Y:RPOS 10PCT REF VALUE The REF VALUE softkey activates the input of a value which is assigned to the ref- erence line.
Page 295 R&S ESPI Instrument Functions Tracking Generator – Option R&S FSP-B9 Fig. 4.24 Measurement with REF VALUE -10 dB and REF VALUE POSITION 50% After the reference line has been moved by entering a REF VALUE of –10 dB the deviation from the nominal power level can be displayed with high resolution (e.g. 1 dB/div).
Page 296 R&S ESPI Instrument Functions Tracking Generator – Option R&S FSP-B9 RECALL The RECALL softkey restores the R&S ESPI settings that were used during source calibration. This can be useful if device settings were changed after calibration (e.g. center fre- quency, frequency deviation, reference level, etc.). The softkey is only available if: •...
Page 297 R&S ESPI Instrument Functions Tracking Generator – Option R&S FSP-B9 4.8.3.1 Calibration of Reflection Measurement The calibration mechanism for reflection measurement is basically the same as the one used for transmission measurement. CAL REFL The CAL REFL SHORT softkey starts the short-circuit calibration. SHORT If both calibrations (open circuit, short circuit) are carried out, the calibration curve is calculated by averaging the two measurements and stored in the memory.
Page 298 R&S ESPI Instrument Functions Tracking Generator – Option R&S FSP-B9 Table 4-6 Measurement accuracy levels Accuracy Enhancement Reason/Limitation label High No difference between reference setting and measurement Medium Change of the following settings: (approximation) • coupling (RBW, VBW, SWT) • reference level, RF attenuation •...
Page 299: Frequency Offset
R&S ESPI Instrument Functions Tracking Generator – Option R&S FSP-B9 4.8.5 Frequency-Converting Measurements For frequency-converting measurements (e.g. on converter units) the tracking gen- erator is able to set a constant frequency offset between the output frequency of the tracking generator and the receive frequency of the R&S ESPI. Up to an output frequency of 150 MHz the measurement can be carried out in both inverted and normal positions.
Page 300 R&S ESPI Instrument Functions Tracking Generator – Option R&S FSP-B9 4.8.6 External Modulation of the Tracking Generator MODULATION EXT AM EXT FM EXT I/Q MODULATION OFF The MODULATION softkey opens a submenu for selecting different modulation modes. The time characteristics of the tracking generator output signal can be influenced by means of external signals (input voltage range -1 V to +1 V).
Page 301 R&S ESPI Instrument Functions Tracking Generator – Option R&S FSP-B9 The modulation signal is applied to the TG IN Q / FM connector. Switching on an external FM disables the active I/Q modulation. Remote command: SOUR:FM:STAT ON SOUR:FM:DEV 10MHz EXT I/Q The EXT I/Q softkey activates the external I/Q modulation of the tracking generator.
Page 302 R&S ESPI Instrument Functions Tracking Generator – Option R&S FSP-B9 4.8.7 Power Offset of the Tracking Generator POWER POWER SWP ON/OFF SWEEP START POWER STOP POWER The POWER SWEEP softkey opens a submenu for activates or deactivates the power sweep. POWER SWP The POWER SWP ON/OFF softkey activates or deactivates the power sweep.
Page 303 R&S ESPI Instrument Functions External Generator Control – Option R&S FSP-B10 4.9 External Generator Control – Option R&S FSP-B10 The external generator control option permits to operate a number of commercially available generators as tracking generator on the R&S ESPI. Thus, scalar network analysis with the R&S ESPI is also possible outside the frequency range of the inter- nal tracking generator when the appropriate generators are used.
Page 304 R&S ESPI Instrument Functions External Generator Control – Option R&S FSP-B10 The external generator control is only available in the spectrum analyzer mode and not in the receiver mode. 4.9.1 External Generator Settings The NETWORK hotkey opens the menu for setting the functions of the external gen- NETWORK erator.
Page 305 R&S ESPI Instrument Functions External Generator Control – Option R&S FSP-B10 The permissible setting range is -200 dB to +200 dB in steps of 0.1 dB. Positive off- sets handle a subsequent amplifier and negative offsets an attenuator pad. The default setting is 0 dB; offsets <> 0 are marked by the activated enhancement label LVL.
Page 306 R&S ESPI Instrument Functions External Generator Control – Option R&S FSP-B10 CAL TRANS The CAL TRANS softkey triggers the calibration of the transmission measurement. It starts a sweep that records a reference trace. This trace is then used to obtain the differences to the normalized values.
Page 307 R&S ESPI Instrument Functions External Generator Control – Option R&S FSP-B10 4.9.2.2 Normalization NORMALIZE The NORMALIZE softkey switches normalization on or off. The softkey is only avail- able if the memory contains a correction trace. It is possible to shift the relative reference point within the grid using the REF VALUE POSITION softkey.
Page 308 R&S ESPI Instrument Functions External Generator Control – Option R&S FSP-B10 Fig. 4.32 Normalized measurement, shifted with REF VALUE POSITION 50% Remote command: DISP:WIND:TRAC:Y:RPOS 10PCT REF VALUE The REF VALUE softkey activates the input of a level difference which is assigned to the reference line.
Page 309 R&S ESPI Instrument Functions External Generator Control – Option R&S FSP-B10 Fig. 4.33 Measurement with REF VALUE -10dB and REF VALUE POSITION 50% After the reference line has been shifted by entering REF VALUE –10 dB, depar- tures from the nominal value can be displayed with high resolution (e.g. 1 dB / Div.). The absolute measured values are still displayed, in the above example, 1 dB below nominal value (reference line) = 11 dB attenuation.
Page 310 R&S ESPI Instrument Functions External Generator Control – Option R&S FSP-B10 RECALL The RECALL softkey restores the instrument setting with which the calibration was carried out. This can be useful if the device setting was changed after calibration (e.g. center fre- quency setting, frequency deviation, reference level, etc.).
Page 311 R&S ESPI Instrument Functions External Generator Control – Option R&S FSP-B10 4.9.3.1 Calibration of Reflection Measurement The calibration mechanism essentially corresponds to that of the transmission mea- surement. CAL REFL The CAL REFL SHORT softkey starts the short-circuit calibration. SHORT If both calibrations (open circuit, short circuit) are carried out, the calibration curve is formed by averaging the two measurements and stored in the memory.
Page 312 R&S ESPI Instrument Functions External Generator Control – Option R&S FSP-B10 Table 4-8 Measurement accuracy levels Accuracy Enhancement Reason/Limitation label High No difference between reference setting and measurement Medium Change of the following settings: (approximation) • coupling (RBW, VBW, SWT) •...
Page 313 R&S ESPI Instrument Functions External Generator Control – Option R&S FSP-B10 4.9.5 Frequency-Converting Measurements For frequency-converting measurements (e.g. on converters) the external generator is able to set a constant frequency offset between the output frequency of the gener- ator and the receive frequency of the R&S ESPI and, in addition, the generator fre- quency as a multiple of the R&S ESPI.
Page 314 R&S ESPI Instrument Functions External Generator Control – Option R&S FSP-B10 4.9.6 Configuration of an External Generator EXT SOURCE EXT SRC ON / OFF SELECT GENERATOR FREQUENCY SWEEP GEN REF INT / EXT The EXT SOURCE softkey opens a submenu for configuration of the external gen- erator.
Page 315 R&S ESPI Instrument Functions External Generator Control – Option R&S FSP-B10 EXT SRC ON / The EXT SRC ON / OFF softkey switches the external generator on or off. It can only be switched on successfully if the generator has been selected by means of SELECT GENERATOR and configured correctly by means of FREQUENCY SWEEP.
Page 316 R&S ESPI Instrument Functions External Generator Control – Option R&S FSP-B10 • TYPE The field opens the list with the available generators: After completion of the selection, the remaining fields of the table are filled with the generator characteristics. A list of generator types supported by the R&S ESPI is to be found in section “List of Generator Types Supported by the R&S ESPI”...
Page 317 R&S ESPI Instrument Functions External Generator Control – Option R&S FSP-B10 4.9.7 List of Generator Types Supported by the R&S ESPI The R&S SMA and R&S SMU require the following firmware versions: • R&S SMA: V2.10.x or higher • R&S SMU: V1.10 or higher Generator Interface Generator...
Page 318 R&S ESPI Instrument Functions External Generator Control – Option R&S FSP-B10 Generator Interface Generator Generator Generator Generator Type Min Freq Max Freq Min Power Max Power SMR60 1 GHz 60 GHz -130 SMR60B11 10 MHz 60 GHz -130 SMP02 10 MHz 20 GHz -130 SMP03...
Page 319: Frequency Sweep
R&S ESPI Instrument Functions External Generator Control – Option R&S FSP-B10 FREQUENCY The FREQUENCY SWEEP softkey opens a table for setting the generator level as SWEEP well as the multiplier and the offset used to derive the generator frequency from the analyzer frequency.
Page 320 R&S ESPI Instrument Functions External Generator Control – Option R&S FSP-B10 – In the time domain (Span = 0 Hz) the generator frequency is derived from the set receive frequency of the R&S ESPI using the calculation formula. For the sake of clarity, the formula is also displayed in the table. The offset setting can be used to sweep in the reverse direction.
Page 321 R&S ESPI Instrument Functions External Generator Control – Option R&S FSP-B10 GEN REF INT / The GEN REF INT / EXT softkey switches over the reference oscillator of the gener- ator (switch over between internal and external reference source). Selection EXT allows connecting the external generator to an external reference frequency source.
Page 322: Novell Networks
R&S ESPI Instrument Functions LAN Interface - Option R&S FSP-B16 4.10 LAN Interface - Option R&S FSP-B16 The instrument can be connected to an Ethernet LAN (local area network) using the LAN interface connector on the rear panel. This makes it possible to transfer data over the network and to use network printers.
Page 323 R&S ESPI Instrument Functions LAN Interface - Option R&S FSP-B16 If the TCP/IP services are installed, a terminal connection is possible using Start - Programs - Accessories - Telnet or a data transfer via FTP by means of Start - Run ftp - OK.
Page 324 R&S ESPI Instrument Functions RSIB Protocol 4.11 RSIB Protocol The instrument is equipped with an RSIB protocol as standard, which allows the instrument to be controlled by means of Visual C++ and Visual Basic programs, but also by means of the Windows applications WinWord and Excel as well as National Instruments LabView, LabWindows/CVI and Agilent VEE.
Page 325 R&S ESPI Instrument Functions RSIB Protocol 4.11.1.2 UNIX Environment To access the measuring equipment via the RSIB interface, copy the librsib.so.X.Y file to a directory for which the control application has read rights. X.Y in the file name indicates the version number of the library, for example 1.0.
Page 326: Rsib Interface Functions
R&S ESPI Instrument Functions RSIB Interface Functions 4.12 RSIB Interface Functions This section lists all functions of the DLL "RSIB.DLL" or "RSIB32.DLL" or "librsib.so", which allow control applications to be produced. 4.12.1 Overview of Interface Functions The library functions are adapted to the interface functions of National Instruments for GPIB programming.
Page 327 R&S ESPI Instrument Functions RSIB Interface Functions 4.12.1.1 Variables ibsta, iberr, ibcntl As with the National Instrument interface, the successful execution of a command can be checked by means of the variables ibsta, iberr and ibcntl. For this pur- pose, all RSIB functions are assigned references to these three variables. Status word - ibsta The status word ibsta provides information on the status of the RSIB interface.
Page 328 R&S ESPI Instrument Functions RSIB Interface Functions 4.12.1.2 Description of Interface Functions RSDLLibfind() The function provides a handle for access to the device with the name udName. VB format: Function RSDLLibfind (ByVal udName$, ibsta%, iberr%, ibcntl&) As Integer C format: short WINAPI RSDLLibfind( char far *udName, short far *ibsta, short far *iberr, unsigned long far *ibcntl)
Page 329 R&S ESPI Instrument Functions RSIB Interface Functions C format (UNIX): short RSDLLilwrt( short ud, char *Wrt, unsigned long Cnt, short *ibsta, short *iberr, unsigned long *ibcntl) Device handle Parameters: String sent to the GPIB parser. Number of bytes sent to the device. Example: RSDLLilwrt (ud, '..', 100, ibsta, iberr, ibcntl)
Page 330 R&S ESPI Instrument Functions RSIB Interface Functions This function fetches the responses of the GPIB parser to a query. In the case of Visual Basic programming, a string of sufficient length must be gener- ated beforehand. This can be done during the definition of the string or using the command Space$().
Page 331 R&S ESPI Instrument Functions RSIB Interface Functions The file name may as well include a drive or path specification. RSDLLibtmo This function defines the time-out for a device. The default value for the time-out is set to 5 seconds. VB format: Function RSDLLibtmo (ByVal ud%, ByVal tmo%, ibsta%, iberr%, ibcntl&) As Integer C format:...
Page 332 R&S ESPI Instrument Functions RSIB Interface Functions After switch over to LOCAL state, the instrument can be manually operated via the front panel. On the next access to the instrument by means of one of the functions of the library, the instrument is switched again to the REMOTE state. RSDLLibeot This function enables or disables the END message after write operations.
Page 333 R&S ESPI Instrument Functions RSIB Interface Functions RSDLLibonl This function switches the device to 'online' or 'offline' mode. When it is switched to ‘offline’ mode, the interface is released and the device handle becomes invalid. By calling RSDLLibfind again, the communication is set up again. VB format: Function RSDLLibonl (ByVal ud%, ByVal v%, ibsta%, iberr%, ibcntl&) As Integer...
Page 334 R&S ESPI Instrument Functions RSIB Interface Functions RSDLLWaitSrq This function waits until the device triggers an SRQ with the handle ud. VB format: Function RSDLLWaitSrq (ByVal ud%, Result%, ibsta%, iberr%, ibcntl&) As Integer C format: void WINAPI RSDLLWaitSrq( short ud, short far *result, short far *ibsta, short far *iberr, unsigned long far *ibcntl) C format (UNIX):...
Page 335 R&S ESPI Instrument Functions RSIB Interface Functions Different types of processor architecture store data in different byte sequences. For example, Intel processors store data in the reverse order of Motorola processors. Comparison of byte sequences: Byte sequence Use in Display in memory Description Big Endian Motorola processors,...
Page 336 R&S ESPI Instrument Functions RSIB Interface Functions 2004 Length of data, e.g. Prefix for Number of digits of 501 pixels binary data the following length 4 bytes/pixel indication In order to enable the trace data to be directly read into a float array, a special func- tion declaration must be created.
Page 337 R&S ESPI Instrument Functions RSIB Interface Functions 'and store ' Read out trace data Call RSDLLilrdTraceReal(ud, TraceData(0), TraceBytes, ibsta, iberr,ibcntl) Programming examples In this example, the start frequency of the instrument is queried. Dim ibsta As Integer ' Status variable Dim iberr As Integer ' Error variable Dim ibcntl As Long...
Page 338 R&S ESPI Instrument Functions RSIB Interface Functions ' Set up connection to measuring instrument ud = RSDLLibfind("89.10.38.97", ibsta, iberr, ibcntl) If (ud < 0) Then ' Error treatment End If ' Request instrument settings Cmd = "SYST:SET?" Call RSDLLibwrt(ud, Cmd, ibsta, iberr, ibcntl) ' Store instrument response in file Call RSDLLibrdf(ud, "C:\db.sav", ibsta, iberr, ibcntl) ' Reset instrument...
Page 339 R&S ESPI Instrument Functions RSIB Interface Functions ' Set up connection to measuring instrument ud = RSDLLibfind("89.10.38.97", ibsta, iberr, ibcntl) If (ud < 0) Then Call MsgBox("Device with address 89.10.38.97 could" & _ "not be found", vbExclamation) End If ' Determine maximum peak in the range 1-2MHZ Call RSDLLibwrt(ud, "*RST", ibsta, iberr, ibcntl) Call RSDLLibwrt(ud, "INIT:CONT OFF", ibsta, iberr, ibcntl) Call RSDLLibwrt(ud, "FREQ:START 1MHZ", ibsta, iberr, ibcntl)
Page 340 R&S ESPI Instrument Functions RSIB Interface Functions When import libraries are used, the DLL is automatically loaded immediately before the application is started. At the end of the program, the DLL is unloaded again unless it is still used by other applications. Access to librsib.so functions (UNIX platforms) The functions of librsib.so are declared in the header file RSIB.H.
Page 341 R&S ESPI Instrument Functions RSIB Interface Functions // Activate SRQ generation via event status register (ESR) // and enable ESB bit in SRE register RSDLLibwrt( ud, "*ESE 1;*SRE 32", &ibsta, &iberr, &ibcntl ); // Set single sweep, trigger sweep and use "*OPC" to cause // the generation of a service request at the end of the sweep RSDLLibwrt( ud, "INIT:CONT off;INIT;*OPC", &ibsta, &iberr, &ibcntl );...
Page 342: Remote Control Basics
R&S ESPI Remote Control – Basics 5 Remote Control – Basics 5.1 Overview ........... . 5.3 5.2 Introduction .
Page 343 R&S ESPI Remote Control – Basics 5.7.3 Description of the Status Registers ......5.22 5.7.3.1Status Byte (STB) and Service Request Enable Register (SRE) .
Page 344: Overview
R&S ESPI Remote Control – Basics Overview 5.1 Overview This chapter contains the following: • instructions on how to put the R&S ESPI into operation via remote control, • a general introduction to remote control of programmable instruments. This includes the description of the command structure and syntax according to the SCPI standard, the description of command execution and of the status registers, •...
Page 345: Getting Started
R&S ESPI Remote Control – Basics Getting Started 5.3 Getting Started The short and simple operating sequence provided below enables you to quickly put the instrument into operation and set its basic functions. As a prerequisite, the GPIB address, which is factory-set to 20, must remain unchanged. 1.
Page 346: Remote Control Via Gpib
R&S ESPI Remote Control – Basics Starting Remote Control During program execution it is recommended to activate the display of results by means of "SYSTem:DISPlay:UPDate ON" so that it is possible to follow the changes in the device settings and the recorded measurement curves on the screen.
Page 347: Remote Control Via Rs-232-Interface
R&S ESPI Remote Control – Basics Starting Remote Control • Before the transition, command processing must be completed as otherwise transition to GPIB is performed immediately. • The keys can be disabled by the universal command LLO (see chapter “Maintenance and Instrument Interfaces”, section “Interface Messages”...
Page 348: Remote Control In A Network (Lan Interface)
R&S ESPI Remote Control – Basics Starting Remote Control • Before the transition, command processing must be completed as otherwise transition to remote control is performed immediately • The keys can be enabled again by sending the control string "@LOC" via RS- 232 (see chapter “Maintenance and Instrument Interfaces”, section...
Page 349: Messages
R&S ESPI Remote Control – Basics Messages 5.4.4.2 Return to Manual Operation Return to manual operation can be made manually via the front panel or remotely via the RSIB interface. Manually: Press LOCAL softkey or PRESET key. Make sure that the execution of commands is completed prior to switch over since otherwise the instrument will switch back to remote control immediately.
Page 350: Structure And Syntax Of The Device Messages
R&S ESPI Remote Control – Basics Structure and Syntax of the Device Messages • According to the effect they have on the instrument: Setting commands cause instrument settings such as reset of the instrument or setting the center frequency. Queries cause data to be provided for output on the GPIB, e.g. for identification of the device or polling the marker.
Page 351 R&S ESPI Remote Control – Basics Structure and Syntax of the Device Messages The commands used in the following examples are not in every case implemented in the instrument. Common commands Common commands consist of a header preceded by an asterisk "*" and one or several parameters, if any.
Page 352 R&S ESPI Remote Control – Basics Structure and Syntax of the Device Messages Some key words occur in several levels within one command system. Their effect depends on the structure of the command, that is to say, at which position in the header of a command they are inserted.
Page 353: Structure Of A Command Line
R&S ESPI Remote Control – Basics Structure and Syntax of the Device Messages Example: SENSe:FREQuency:STOP? MAXimum This query requests the maximal value for the stop frequency. Response: 3.5E9 Numeric suffix If a device features several functions or features of the same kind, e.g. inputs, the desired function can be selected by a suffix added to the command.
Page 354: Responses To Queries
R&S ESPI Remote Control – Basics Structure and Syntax of the Device Messages Example: CALL IBWRT(analyzer, "SENSe:FREQuency:STARt 1E6") CALL IBWRT(analyzer%, "SENSe:FREQuency:STOP 1E9") 5.6.4 Responses to Queries A query is defined for each setting command unless explicitly specified otherwise. It is formed by adding a question mark to the associated setting command. According to SCPI, the responses to queries are partly subject to stricter rules than in standard IEEE 488.2.
Page 355 R&S ESPI Remote Control – Basics Structure and Syntax of the Device Messages Special numerical The texts MINimum, MAXimum, DEFault, UP and DOWN are interpreted as values special numerical values. In the case of a query, the numerical value is provided. Example: Setting command: SENSe:FREQuency:STOP MAXimum Query: SENSe:FREQuency:STOP?
Page 356: Overview Of Syntax Elements
R&S ESPI Remote Control – Basics Structure and Syntax of the Device Messages Strings Strings must always be entered in quotation marks (' or "). Example: SYSTem:LANGuage "SCPI" SYSTem:LANGuage 'SCPI' Block data Block data is a transmission format which is suitable for the transmission of large amounts of data.
Page 357: Instrument Model And Command Processing
R&S ESPI Remote Control – Basics Structure and Syntax of the Device Messages 5.6.7 Instrument Model and Command Processing The instrument model shown in Fig. 5.2 has been made viewed from the standpoint of the servicing of remote commands. The individual components work indepen- dently of each other and simultaneously.
Page 358: Instrument Data Base And Instrument Hardware
R&S ESPI Remote Control – Basics Structure and Syntax of the Device Messages If the command recognition recognizes a delimiter (<PROGRAM MESSAGE SEPA- RATOR> or <PROGRAM MESSAGE TERMINATOR>) or a DCL, it requests the instrument data base to set the commands in the instrument hardware as well now. Subsequently it is immediately prepared to process commands again.
Page 359: Status Reporting System
R&S ESPI Remote Control – Basics Status Reporting System Command Action after the hardware has settled Programming the controller *OPC Setting the operation-complete bit in the ESR - Setting bit 0 in the ESE - Setting bit 5 in the SRE - Waiting for service request (SRQ) *OPC? Writing a "1"...
Page 360: Structure Of An Scpi Status Register
R&S ESPI Remote Control – Basics Status Reporting System 5.7.1 Structure of an SCPI Status Register Each SCPI register consists of 5 parts which each have a width of 16 bits and have different functions (cf. Fig. 5.3). The individual bits are independent of each other, i.e.
Page 361 R&S ESPI Remote Control – Basics Status Reporting System With these two edge register parts the user can define which state transition of the condition part (none, 0 to 1, 1 to 0 or both) is stored in the EVENt part. EVENt part The EVENt part indicates whether an event has occurred since the last reading, it is the "memory"...
Page 362: Overview Of The Status Registers
R&S ESPI Remote Control – Basics Status Reporting System 5.7.2 Overview of the Status Registers The following figure shows the status registers used by the R&S ESPI base unit. The status registers used by the R&S ESPI options are described in the separate software manuals.
Page 363 R&S ESPI Remote Control – Basics Status Reporting System 5.7.3 Description of the Status Registers 5.7.3.1 Status Byte (STB) and Service Request Enable Register (SRE) The STB is already defined in IEEE 488.2. It provides a rough overview of the instru- ment status by collecting the pieces of information of the lower registers.
Page 364 R&S ESPI Remote Control – Basics Status Reporting System 5.7.3.2 IST Flag and Parallel Poll Enable Register (PPE) By analogy with the SRQ, the IST flag combines the entire status information in a single bit. It can be queried by means of a parallel poll (cf. section “Parallel Poll”...
Page 365 R&S ESPI Remote Control – Basics Status Reporting System 5.7.3.4 STATus:OPERation Register In the CONDition part, this register contains information on which actions the instrument is being executing or, in the EVENt part, information on which actions the instrument has executed since the last reading. It can be read using commands "STATus:OPERation:CONDition?"...
Page 366 R&S ESPI Remote Control – Basics Status Reporting System 5.7.3.5 STATus:QUEStionable Register This register comprises information about indefinite states which may occur if the unit is operated without meeting the specifications. It can be queried by commands STATus:QUEStionable:CONDition? STATus:QUEStionable[: EVENt]?. Meaning 0 to 2 These bits are not used.
Page 367 R&S ESPI Remote Control – Basics Status Reporting System 5.7.3.6 STATus:QUEStionable:ACPLimit Register This register comprises information about the observance of limits during adjacent power measurements. It can be queried with commands STATus:QUEStionable: ACPLimit:CONDition? and STATus:QUEStionable:ACPLimit[:EVENt]?. Meaning ADJ UPPer FAIL(Screen A) This bit is set if in screen A.
Page 368 R&S ESPI Remote Control – Basics Status Reporting System 5.7.3.7 STATus:QUEStionable:FREQuency Register This register comprises information about the reference and local oscillator. It can be queried with commands STATus:QUEStionable:FREQuency:CONDi- tion? and STATus:QUEStionable:FREQuency[:EVENt]?. Meaning OVEN COLD This bit is set if the reference oscillator has not yet attained its operating temperature. 'OCXO' will then be displayed.
Page 369 R&S ESPI Remote Control – Basics Status Reporting System 5.7.3.9 STATus:QUEStionable:LMARgin<1|2> Register This register comprises information about the observance of limit margins in the cor- responding measurement window (LMARgin1 corresponds to Screen A, LMARgin2 corresponds to Screen B). It can be queried with commands STATus:QUEStion- "STATus:QUEStionable:LMAR- able:LMARgin<1|2>:CONDition? gin<1|2>[:EVENt]?.
Page 370 R&S ESPI Remote Control – Basics Status Reporting System 5.7.3.10 STATus:QUEStionable:POWer Register This register comprises all information about possible overloads of the unit. It can be queried with commands STATus:QUEStionable:POWer:CONDition? and STATus:QUEStionable:POWer[:EVENt]?. Meaning OVERload (Screen A) This bit is set if the RF input is overloaded. 'OVLD' will then be displayed. not used IF_OVerload (Screen A) This bit is set if the IF path is overloaded.
Page 371 R&S ESPI Remote Control – Basics Status Reporting System 5.7.3.11 STATus:QUEStionalble:TRANsducer Register This register indicates that a transducer hold point is attained (bit 15) and what range is to be swept next (bit 0 to 10). The sweep can be continued with command “INITiate<1|2>:CONMeas”.
Page 372: Application Of The Status Reporting Systems
R&S ESPI Remote Control – Basics Status Reporting System 5.7.4 Application of the Status Reporting Systems In order to be able to effectively use the status reporting system, the information contained there must be transmitted to the controller and further processed there. There are several methods which are represented in the following.
Page 373: Resetting Values Of The Status Reporting System
R&S ESPI Remote Control – Basics Status Reporting System The instrument first has to be set for the parallel poll using quick-BASIC command "IBPPC()". This command allocates a data line to the instrument and determines whether the response is to be inverted. The parallel poll itself is executed using "IBRPP()".
Page 374 R&S ESPI Remote Control – Basics Status Reporting System Event Switching on DCL,SDC *RST or STATus: *CLS supply voltage SYSTem: PRESet (Device Clear, PRESet Selected Power-On-Status- Device Clear) Clear Effect Clear Enable parts of all — — — — OPERation and QUEStionable registers, Fill Enable parts of all other registers with "1".
Page 375 R&S ESPI Remote Control – Basics Status Reporting System 5.34 Operating Manual 1164.6607.12 - 02 www.valuetronics.com...
Page 376 R&S ESPI Remote Control – Description of Commands 6 Remote Control – Description of Commands 6.1 Introduction ..........6.4 6.2 Notation .
Page 377 R&S ESPI Remote Control – Description of Commands 6.13 INPut Subsystem ......... . . 6.126 6.14 INSTrument Subsystem .
Page 378 R&S ESPI Remote Control – Description of Commands 6.24.3 Special Features of the Syntax Parsing Algorithms for 8566A and 8568A Models ..........6.278 6.24.4 856x: Emulation of the Spurious Response Measurement Utility 85672A .
Page 379: Introduction
R&S ESPI Remote Control – Description of Commands Introduction 6.1 Introduction This chapter describes all remote control commands of the R&S ESPI in detail. For details on the nota- tion of the remote control commands refer to “Notation” on page 6.5.
Page 380: Notation
R&S ESPI Remote Control – Description of Commands Notation 6.2 Notation In the following sections, all commands implemented in the instrument are first listed in tables and then described in detail, arranged according to the command subsystems. The notation is adapted to the SCPI standard.
Page 381 R&S ESPI Remote Control – Description of Commands Notation Upper/lower case letters are used to mark the long or short form of the key words Upper/lower case of a command in the description (see chapter “Remote Control – Basics”). The notation instrument itself does not distinguish between upper and lower case letters.
Page 382 R&S ESPI Remote Control – Description of Commands Notation <numeric_value> These key words mark parameters which may be entered as numeric values or be <num> set using specific key words (character data). The following key words given below are permitted: –...
Page 383: Common Commands
R&S ESPI Remote Control – Description of Commands Common Commands 6.3 Common Commands The common commands are taken from the IEEE 488.2 (IEC 625-2) standard. A particular command has the same effect on different devices. The headers of these commands consist of an asterisk "*" fol- lowed by three letters.
Page 384 R&S ESPI Remote Control – Description of Commands Common Commands *IDN? IDENTIFICATION QUERY queries the instrument identification. Example: "Rohde&Schwarz, ESPI-3, 123456/789, 4.32" ESPI-3 = Device name 123456/789 = Serial number of the instrument 4.32 = Firmware version number *IST? INDIVIDUAL STATUS QUERY returns the contents of the IST flag in decimal form (0 | 1). The IST flag is the status bit which is sent during a parallel poll (cf.
Page 385 R&S ESPI Remote Control – Description of Commands Common Commands Example: B3,B4,B2,B6,0,0,B9,B10,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,K7,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 ,K50,0,0,0,0,0,0,0*PCB 0 to 30 PASS CONTROL BACK indicates the controller address which the GPIB control is to be returned to after termination of the triggered action. *PRE 0 to 255 PARALLEL POLL REGISTER ENABLE sets the parallel poll enable register to the indicated value.
Page 386: Abort Subsystem
R&S ESPI Remote Control – Description of Commands ABORt Subsystem 6.4 ABORt Subsystem The ABORt subsystem contains the commands for aborting triggered actions. An action can be triggered again immediately after being aborted. All commands trigger events, and therefore they have no *RST value.
Page 387: Calculate Subsystem
R&S ESPI Remote Control – Description of Commands CALCulate Subsystem 6.5 CALCulate Subsystem The CALCulate subsystem contains commands for converting instrument data, transforming and carry- ing out corrections. These functions are carried out subsequent to data acquisition, i.e. following the SENSe subsystem.
Page 388: Calculate:deltamarker Subsystem
R&S ESPI Remote Control – Description of Commands CALCulate Subsystem 6.5.1 CALCulate:DELTamarker Subsystem The CALCulate:DELTamarker subsystem controls the delta-marker functions in the instrument. The measurement windows are selected via CALCulate1 (screen A) or 2 (screen B). CALCulate<1|2>:DELTamarker<1...4>:AOFF This command switches off all active delta markers. The measurement windows are selected via CALCulate1 (screen A) or 2 (screen B).
Page 389 R&S ESPI Remote Control – Description of Commands CALCulate Subsystem CALCulate<1|2>:DELTamarker<1...4>:FUNCtion:FIXed:RPOint:Y <numeric_value> This command defines a new reference point level for all delta markers in the selected measurement window for a measurement with fixed reference point. (CALCulate:DELTamarker:FUNCtion: FIXed:STATe ON). For phase noise measurements (CALCulate:DELTamarker:FUNCtion:PNOise:STATe ON), the command defines a new reference point level for delta marker 2 in the selected measurement window.
Page 390 R&S ESPI Remote Control – Description of Commands CALCulate Subsystem CALCulate<1|2>:DELTamarker<1...4>:FUNCtion:PNOise:AUTO ON | OFF This command adds an automatic peak search action for the reference fixed marker 1 at the end of each particular sweep. This function may be used for tracking of a drifting source whilst phase noise measurement.
Page 391 R&S ESPI Remote Control – Description of Commands CALCulate Subsystem CALCulate<1|2>:DELTamarker<1...4>:LINK ON | OFF This command switches on and off a link of delta marker 1 to marker 1. If the link is switched on and the x-axis value of the marker 1 is changed, the delta marker 1 will follow on the same x-position. The suffix at DELTamarker can only be 1 or not present, because the functionality is only available for marker 1 and delta marker 1.
Page 392 R&S ESPI Remote Control – Description of Commands CALCulate Subsystem CALCulate<1|2>:DELTamarker<1...4>:MAXimum:RIGHt This command positions the specified delta marker to the next smaller maximum value to the right of the current value (i.e. ascending X values). The corresponding delta marker is activated first, if necessary.
Page 393 R&S ESPI Remote Control – Description of Commands CALCulate Subsystem CALCulate<1|2>:DELTamarker<1...4>:MINimum[:PEAK] This command positions the specified delta marker to the current minimum value of the trace. The corresponding delta marker will be activated first, if necessary. Example: "CALC2:DELT3:MIN" 'Sets delta marker 3 in screen B to the minimum value of the associated trace. Characteristics: *RST value: - SCPI: device-specific R, A...
Page 394 R&S ESPI Remote Control – Description of Commands CALCulate Subsystem R, A Mode: 1 to 3 CALCulate<1|2>:DELTamarker<1...4>:TRACe This command assigns the selected delta marker to the indicated measurement curve. The selected measurement curve must be active, i.e. its state must be different from "BLANK". The measurement windows are selected via CALCulate1 (screen A) or 2 (screen B).
Page 395 R&S ESPI Remote Control – Description of Commands CALCulate Subsystem CALCulate<1|2>:DELTamarker<1...4>:Y? This command queries the measured value of the selected delta marker in the indicated measurement window. The corresponding delta marker will be activated, if necessary. The output is always a relative value referred to marker 1 or to the reference position (reference fixed active).
Page 396: Calculate:dline Subsystem
R&S ESPI Remote Control – Description of Commands CALCulate Subsystem 6.5.2 CALCulate:DLINe Subsystem The CALCulate:DLINe subsystem controls the settings for the display lines. The measurement windows are selected by CALCulate 1 (screen A) or 2 (screen B). CALCulate<1|2>:DLINe<1|2> MINimum .. MAXimum (depending on current unit) This command defines the position of Display Line 1 or 2.
Page 397: Calculate:espectrum Subsystem
R&S ESPI Remote Control – Description of Commands CALCulate Subsystem 6.5.3 CALCulate:ESPectrum Subsystem The following chapter describes remote control commands that configure the list evaluation for the Spec- trum Emission Mask measurement. CALCulate<1|2>:ESPectrum:PSEarch | PEAKsearch:AUTO ON | OFF This command activates or deactivates the list evaluation of the Spectrum Emission Mask measurement.
Page 398: Calculate:fline Subsystem
R&S ESPI Remote Control – Description of Commands CALCulate Subsystem 6.5.4 CALCulate:FLINe Subsystem The CALCulate:FLINe subsystem controls the settings for the frequency limit lines. The measurement windows are selected by CALCulate 1 (screen A) or 2 (screen B). CALCulate<1|2>:FLINe<1|2> 0 to f This command defines the position of the frequency lines.
Page 399: Calculate:limit Subsystem
R&S ESPI Remote Control – Description of Commands CALCulate Subsystem 6.5.5 CALCulate:LIMit Subsystem The CALCulate:LIMit subsystem consists of the limit lines and the corresponding limit checks. In receiver mode, upper limit lines can be defined. In analyzer mode, limit lines can be defined as upper or lower limit lines.
Page 400 R&S ESPI Remote Control – Description of Commands CALCulate Subsystem Switching on and evaluating the line in screen A (example for analyzer mode): 1. Switching on the line in screen A: CALC1:LIM5:UPP:STAT ON 2. Switching on the limit check in screen A: CALC1:LIM5:STAT ON 3.
Page 401 R&S ESPI Remote Control – Description of Commands CALCulate Subsystem Mode: CALCulate<1|2>:LIMit<1...8>:COMMent <string> This command defines a comment for the limit line selected (max. 40 characters). Up to 8 limit lines can be defined at the same time. The comment is independent from the measurement window.
Page 402 R&S ESPI Remote Control – Description of Commands CALCulate Subsystem CALCulate<1|2>:LIMit<1...8>:FAIL? This command queries the result of the limit check of the limit line. It should be noted that a complete sweep must have been performed for obtaining a valid result. A synchronization with *OPC, *OPC? or *WAI should therefore be provided.
Page 403 R&S ESPI Remote Control – Description of Commands CALCulate Subsystem CALCulate<1|2>:LIMit<1...8>:TRACe 1 to 3 This command assigns a limit line to a trace. Up to 8 limit lines can be defined at the same time. The numeric suffixes <1|2> of CALCulate indicate the measurement window.
Page 404 R&S ESPI Remote Control – Description of Commands CALCulate Subsystem 6.5.5.2 CALCulate:LIMit:ACPower Subsystem The CALCulate:LIMit:ACPower subsystem defines the limit check for adjacent channel power measure- ment. CALCulate<1|2>:LIMit<1...8>:ACPower:ACHannel:ABSolute -200DBM to 200DBM, -200 to 200DBM This command defines the absolute limit value for the lower/upper adjacent channel during adjacent channel power measurement (Adjacent Channel Power) in the selected measurement window.
Page 405 R&S ESPI Remote Control – Description of Commands CALCulate Subsystem Example: "CALC:LIM:ACP:ACH 30DB, 30DB" 'Sets the relative limit value in screen A for the power in the lower and upper adjacent channel to 30 dB below the channel power. "CALC:LIM:ACP:ACH:ABS -35DBM, -35DBM" 'Sets the absolute limit value in screen A for the power in the lower and upper adjacent channel to -35 dBm.
Page 406 R&S ESPI Remote Control – Description of Commands CALCulate Subsystem CALCulate<1|2>:LIMit<1...8>:ACPower:ACHannel[:RELative]:STATe ON | OFF This command activates the limit check for the relative limit value of the adjacent channel when adjacent channel power measurement is performed. Before the command, the limit check must be activated using CALCulate:LIMit:ACPower:STATe ON.
Page 407 R&S ESPI Remote Control – Description of Commands CALCulate Subsystem Example: "CALC:LIM:ACP:ACH 30DB, 30DB" 'Sets the relative limit value in screen A for the power in the lower and upper adjacent channel to 30 dB below the channel power. "CALC:LIM:ACP:ACH:ABS -35DBM, -35DBM" 'Sets the absolute limit value in screen A for the power in the lower and upper adjacent channel to -35 dB.
Page 408 R&S ESPI Remote Control – Description of Commands CALCulate Subsystem CALCulate<1|2>:LIMit<1...8>:ACPower:ALTernate<1...11>:ABSolute:STATe ON | OFF This command activates the limit check for the alternate adjacent channels in the selected measurement window for adjacent channel power measurement (Adjacent Channel Power). Before the command, the limit check must be globally switched on for the channel/adjacent channel power with the command CALCulate:LIMit:ACPower:STATe ON.
Page 409 R&S ESPI Remote Control – Description of Commands CALCulate Subsystem The first value is the limit for the lower and the upper alternate adjacent channel. Parameter: The second limit value is ignored but must be indicated for reasons of compatibility with the FSE family.
Page 410 R&S ESPI Remote Control – Description of Commands CALCulate Subsystem CALCulate<1|2>:LIMit<1...8>:ACPower:ALTernate<1...11>:RESult? This command queries the result of the limit check for the alternate adjacent channels in the selected measurement window for adjacent channel power measurements. The numeric suffix after ALTernate<1...11> denotes the alternate channel. The numeric suffixes <1...8>...
Page 411 R&S ESPI Remote Control – Description of Commands CALCulate Subsystem 6.5.5.3 CALCulate:LIMit:CONTrol Subsystem The CALCulate:LIMit:CONTrol subsystem defines the x-axis (CONTrol-axis). CALCulate<1|2>:LIMit<1...8>:CONTrol[:DATA] <numeric_value>,<numeric_value>. This command defines the x-axis values (frequencies or times) of the upper or lower limit lines. The values are defined independently of the measurement window. The number of values for the CONTrol axis and for the corresponding UPPer and/or LOWer limit lines have to be identical.
Page 412 R&S ESPI Remote Control – Description of Commands CALCulate Subsystem CALCulate<1|2>:LIMit<1...8>:CONTrol:OFFSet <numeric_value> This command defines an offset for the x-axis value of the selected relative limit line in the frequency or time domain. The unit of values depends on the frequency or time domain of the x-axis, i.e. it is HZ with CALC:LIM: CONT:DOM FREQ and S with CALC:LIM:CONT:DOM TIME.
Page 413 R&S ESPI Remote Control – Description of Commands CALCulate Subsystem 6.5.5.4 CALCulate:LIMit:LOWer Subsystem The CALCulate:LIMit:LOWer subsystem defines the lower limit line. This subsystem is not available in receiver mode. CALCulate<1|2>:LIMit<1...8>:LOWer[:DATA] <numeric_value>,<numeric_value>... This command defines the values for the selected lower limit line. Up to 8 limit lines can be defined at the same time.
Page 414 R&S ESPI Remote Control – Description of Commands CALCulate Subsystem CALCulate<1|2>:LIMit<1...8>:LOWer:OFFSet <numeric_value> This command defines an offset for the y-axis of the selected relative lower limit line. In contrast to CALC:LIM:LOW:SHIFt, the line is not shifted by modifying the individual Y values but by means of an additive offset.
Page 415 R&S ESPI Remote Control – Description of Commands CALCulate Subsystem Mode: CALCulate<1|2>:LIMit<1...8>:LOWer:THReshold <numeric_value> This command defines an absolute threshold value for limit lines with relative y-axis scaling independently of the measurement window. The absolute threshold value is used in the limit check as soon as it exceeds the relative limit value.
Page 416 R&S ESPI Remote Control – Description of Commands CALCulate Subsystem 6.5.5.5 CALCulate:LIMit:UPPer Subsystem The CALCulate:LIMit:UPPer subsystem defines the upper limit line. CALCulate<1|2>:LIMit<1...8>:UPPer[:DATA] <numeric_value>,<numeric_value>... This command defines the values for the upper limit lines. Up to 8 limit lines can be defined at the same time. This command is independent of the measurement window.
Page 417 R&S ESPI Remote Control – Description of Commands CALCulate Subsystem CALCulate<1|2>:LIMit<1...8>:UPPer:OFFSet <numeric_value> This command defines an offset for the y-axis of the selected relative upper limit line. In contrast to CALC:LIM:UPP:SHIFt, the line is not shifted by modifying the individual Y values but by means of an additive offset.
Page 418 R&S ESPI Remote Control – Description of Commands CALCulate Subsystem R, A Mode: CALCulate<1|2>:LIMit<1...8>:UPPer:THReshold <numeric_value> This command defines an absolute threshold value for limit lines with relative y-axis scaling independently of the measurement window. The absolute threshold value is used in the limit check as soon as it exceeds the relative limit value.
Page 419: Calculate:marker Subsystem
R&S ESPI Remote Control – Description of Commands CALCulate Subsystem 6.5.6 CALCulate:MARKer Subsystem The CALCulate:MARKer subsystem checks the marker functions in the instrument. The measurement windows are selected via CALCulate1 (screen A) or 2 (screen B). The subsystem is divided into the description of the general marker commands (“General CALCulate: MARKer:...
Page 420 R&S ESPI Remote Control – Description of Commands CALCulate Subsystem CALCulate<1|2>:MARKer<1...4>:COUNt:FREQuency? This command queries the result of the frequency counter for marker 1 in the selected measurement window. Before the command, the frequency counter should be switched on and a complete measurement performed to obtain a valid count result.
Page 421 R&S ESPI Remote Control – Description of Commands CALCulate Subsystem CALCulate<1|2>:MARKer<1...4>:LOEXclude ON | OFF This command switches the local oscillator suppression for peak search on or off. This setting is valid for all markers and delta markers in all measurement windows. The numeric suffixes 1|2 and 1...4 are irrelevant.
Page 422 R&S ESPI Remote Control – Description of Commands CALCulate Subsystem CALCulate<1|2>:MARKer<1...4>:MAXimum:NEXT This command positions the specified marker to the next smaller maximum value of the corresponding trace. If no next smaller maximum value is found on the trace (level spacing to adjacent values <...
Page 423 R&S ESPI Remote Control – Description of Commands CALCulate Subsystem CALCulate<1|2>:MARKer<1...4>:MINimum:AUTO ON | OFF This command switches an automatic minimum peak search for marker 1 at the end of each particular sweep on and off. The current marker search limit settings (LEFT LIMIT, RIGHT LIMIT, THRESHOLD, EXCLUDE LO) are taken into account.
Page 424 R&S ESPI Remote Control – Description of Commands CALCulate Subsystem CALCulate<1|2>:MARKer<1...4>:MINimum[:PEAK] This command positions the specified marker to the current minimum value of the corresponding trace. The corresponding marker is activated first or switched to marker mode, if necessary. If no minimum value is found on the trace (level spacing to adjacent values < peak excursion), an execution error (error code: -200) is produced.
Page 425 R&S ESPI Remote Control – Description of Commands CALCulate Subsystem CALCulate<1|2>:MARKer<1...4>:SCOupled[:STATe] ON | OFF This command switches the coupling of the receiver frequency settings from the corresponding subscans to the marker frequency on or off. Example: "CALC:MARK:SCO ON" Characteristics: *RST value: ON SCPI: device-specific Mode: The numeric suffix in MARKer<1...4>...
Page 426 R&S ESPI Remote Control – Description of Commands CALCulate Subsystem CALCulate<1|2>:MARKer<1...4>:X 0 to MAX (frequency | sweep time) This command positions the selected marker to the indicated : • frequency (span > 0) in receiver and analyzer mode • time (span = 0) in analyzer mode •...
Page 427 R&S ESPI Remote Control – Description of Commands CALCulate Subsystem CALCulate<1|2>:MARKer<1...4>:X:SLIMits:RIGHt 0 to MAX (frequency | sweep time) This command sets the right limit of the search range for markers and delta markers in the selected measurement window. Depending on the x-axis domain the indicated value defines a frequency (span >...
Page 428 R&S ESPI Remote Control – Description of Commands CALCulate Subsystem CALCulate<1|2>:MARKer<1...4>:Y? This command queries the measured value of the selected marker in the indicated measurement window. The corresponding marker is activated before or switched to marker mode, if necessary. To obtain a valid query result, a complete sweep with synchronization to the sweep end must be performed between the activation of the marker and the query of the y value.
Page 429 R&S ESPI Remote Control – Description of Commands CALCulate Subsystem 6.5.6.2 CALCulate:MARKer:FUNCtion Subsystem The measurement window is selected by CALCulate 1 (screen A) or 2 (screen B). CALCulate<1|2>:MARKer<1...4>:FUNCtion:CENTer This command sets the receiver or center frequency of the selected measurement window equal to the frequency of the indicated marker.
Page 430 R&S ESPI Remote Control – Description of Commands CALCulate Subsystem Mode: CALCulate<1|2>:MARKer<1...4>:FUNCtion:DEModulation:SELect AM | FM This command selects the demodulation type for the audio demodulator. The command is independent of the measurement window and of the selected marker, i.e. suffixes 1|2 and 1...4 are irrelevant. In receiver mode the audio demodulator is controlled by the SENSe:DEMod sub- system.
Page 431 R&S ESPI Remote Control – Description of Commands CALCulate Subsystem CALCulate<1|2>:MARKer<1...4>:FUNCtion:FPEaks:COUNt? This query reads out the number of maxima found during the search. If no search for maxima has been performed, 0 is returned. Example: "CALC:MARK:FUNC:FPE 3" 'searches the 3 highest maxima for trace 1 "CALC:MARK:FUNC:FPE:COUN?"...
Page 432 R&S ESPI Remote Control – Description of Commands CALCulate Subsystem CALCulate<1|2>:MARKer<1...4>:FUNCtion:FPEaks:SORT X | Y This command sets the sort mode for the search for maxima: X: the maxima are sorted in the list of responses according to increasing X values Parameter: Y: the maxima are sorted in the list of responses according to decreasing Y values Example:...
Page 433 R&S ESPI Remote Control – Description of Commands CALCulate Subsystem CALCulate<1|2>:MARKer<1...4>:FUNCtion:FPEaks:Y? This query reads out the list of X values of the maxima found. The number of available values can be queried with CALC:MARK:FUNC:FPEaks:COUNt?. With sort mode X, the X values are in increasing order; with sort mode Y the order corresponds to the decreasing order of the Y values.
Page 434 R&S ESPI Remote Control – Description of Commands CALCulate Subsystem CALCulate<1|2>:MARKer<1...4>:FUNCtion:MDEPth[:STATe] This command switches on the measurement of the AM modulation depth. An AM-modulated carrier is required on the screen for correct operation. If necessary, marker 1 is previously activated and set to the largest signal available.
Page 435 R&S ESPI Remote Control – Description of Commands CALCulate Subsystem Measurement Measurement Measurement Time Time Time Period Period Time offset of first pulse Trace start TRACE 1 of the selected screen is always used by the function. The suffix of MARKer will be ignored. Example: "DISP:WIND:TRAC:Y:RLEV –10dBm"...
Page 436 R&S ESPI Remote Control – Description of Commands CALCulate Subsystem CALCulate<1|2>:MARKer<1...4>:FUNCtion:NDBDown <numeric_value> This command defines the level spacing of the two delta markers to the right and left of marker 1 in the selected measurement window. Marker 1 is always used as the reference marker. The numeric suffix <1...4>...
Page 437 R&S ESPI Remote Control – Description of Commands CALCulate Subsystem Example: "INIT:CONT OFF" 'Switches to single-sweep mode. "CALC:MARK:FUNC:NDBD ON" 'Switches on the n-dB-down function in screen A. "INIT;*WAI" 'Starts a sweep and waits for the end. "CALC:MARK:FUNC:NDBD:RES?" 'Outputs the measured value of screen A. Characteristics: *RST value: - SCPI: device-specific Mode:...
Page 438 R&S ESPI Remote Control – Description of Commands CALCulate Subsystem CALCulate<1|2>:MARKer<1...4>:FUNCtion:NOISe:RESult? This command queries the result of the noise measurement. A complete sweep with synchronization to the sweep end must be performed between switching on the function and querying the measured value in order to obtain a valid query result. This is only possible in single-sweep mode.
Page 439 R&S ESPI Remote Control – Description of Commands CALCulate Subsystem CALCulate<1|2>:MARKer<1...4>:FUNCtion:TOI:MARKer CALCulate | SEARch This command controls the positioning of the intercept markers 3 and 4 for TOI measurement, based on the two carrier signals. • CALCulate: Calculates the intermodulation product frequencies. •...
Page 440 R&S ESPI Remote Control – Description of Commands CALCulate Subsystem Example: "CALC:MARK:FUNC:TOI ON" 'Switches on the measurement of the third-order intercept in screen A. Characteristics: *RST value: OFF SCPI: device-specific Mode: CALCulate<1|2>:MARKer<1...4>:FUNCtion:ZOOM <numeric_value> The frequency at the marker position becomes the new center frequency at the diagram. The results of a previous measured scan are displayed in the activated frequency range.
Page 441 R&S ESPI Remote Control – Description of Commands CALCulate Subsystem 6.5.6.3 CALCulate:MARKer:FUNCtion:HARMonics Subsystem The CALCulate:MARKer:FUNCtion:HARMonics subsystem contains the commands for Harmonic Dis- tortion measurement CALCulate<1|2>:MARKer<1...4>:FUNCtion:HARMonics:BANDwidth:AUTO ON | OFF This command specifies whether the resolution bandwidth of the 2 to the n harmonic should be identical to the bandwidth of the first harmonic (OFF) or to the next largest bandwidth (corresponding to the harmonic) of the multiple of the bandwidth of the first harmonic (ON).
Page 442 R&S ESPI Remote Control – Description of Commands CALCulate Subsystem CALCulate<1|2>:MARKer<1...4>:FUNCtion:HARMonics:LIST? This command reads out the list of harmonics. The first value is the absolute power of the first harmonic in the unit set via UNIT. The other values are relative to the carrier signal and are output in dB.
Page 443 R&S ESPI Remote Control – Description of Commands CALCulate Subsystem CALCulate<1|2>:MARKer<1...4>:FUNCtion:HARMonics:PRESet This command optimizes the device settings depending on the mode in which the harmonic measurement was started: If the harmonic measurement was started in the frequency domain (span > 0), the frequency and the level of the first harmonic are calculated, from which the measurement list is set up.
Page 444 R&S ESPI Remote Control – Description of Commands CALCulate Subsystem 6.5.6.4 CALCulate:MARKer:FUNCtion:POWer Subsystem The CALCulate:MARKer:FUNCtion:POWER subsystem contains the commands for control of power measurement. CALCulate<1|2>:MARKer<1...4>:FUNCtion:POWer:MODE WRITe | MAXHold This command selects the Clear Write or Maxhold for Channel Power values. Example: "CALC:MARK:FUNC:POW:MODE MAXH"...
Page 445 R&S ESPI Remote Control – Description of Commands CALCulate Subsystem WIBro WiMAX WiBro (Wireless Broadband) IEEE 802.16-2004/Cor1-2005 EUTRa E-UTRA/LTE Square Use this standard setting to measure the assumed adjacent channel carrier configuration, E-UTRA of same BW. In this mode, on all channels a square filter is applied. REUTra E-UTRA/LTE Square/RRC Use this standard setting to measure the assumed adjacent channel carrier configuration, 1.28, 3.84, 7.68,...
Page 446 R&S ESPI Remote Control – Description of Commands CALCulate Subsystem 'Switches the adjacent channel power measurement in "CALC2:MARK:FUNC:POW:SEL ACP" screen B. 'Switches to single-sweep mode. "INIT:CONT OFF" 'Starts a sweep and waits for the end. "INIT;*WAI" 'Output of results referred to the channel bandwidth. "CALC2:MARK:FUNC:POW:RES:PHZ ON"...
Page 447 R&S ESPI Remote Control – Description of Commands CALCulate Subsystem 3. T1 marker level 4. T2 marker position in Hz (right marker) 5. T2 marker level Note: The Occupied Bandwidth is marker position T2 - T1 CPOWer: Channel power measurement With logarithmic scaling (RANGE LOG), the channel power is output in the cur- rently selected level unit;...
Page 448 R&S ESPI Remote Control – Description of Commands CALCulate Subsystem Measurement of carrier-to-noise ratio The carrier-to-noise ratio in dB is returned. CN0: Measurement of carrier-to-noise ratio referenced to 1 Hz bandwidth. The carrier-to-noise ratio in dB/Hz is returned. Example of channel/adjacent channel power measurement: "SENS2:POW:ACH:ACP 3"...
Page 449 R&S ESPI Remote Control – Description of Commands CALCulate Subsystem Characteristics: *RST value: - SCPI: device-specific Mode: CALCulate<1|2>:MARKer<1...4>:FUNCtion:POWer:SELect ACPower | CPOWer | MCACpower | OBANdwidth | OBWidth | CN | CN0 This command selects – and switches on – one of the above types of power measurement in the selected measurement window.
Page 450 R&S ESPI Remote Control – Description of Commands CALCulate Subsystem CALCulate<1|2>:MARKer<1...4>:FUNCtion:POWer:STANdard:CATalog? This command returns all predefine ACP standards and all user standards. The numeric suffixes at MARKer are irrelevant for this command. Example: "CALC:MARK:FUNC:POW:STAN:CAT?” 'get all available ACP standards Characteristics: *RST value:- SCPI: device-specific Mode: CALCulate<1|2>:MARKer<1...4>:FUNCtion:POWer:STANdard:DELete <name>...
Page 451 R&S ESPI Remote Control – Description of Commands CALCulate Subsystem CALCulate<1|2>:MARKer<1...4>:FUNCtion:POWer[:STATe] OFF This command switches off the power measurement in the selected measurement window. Example: "CALC:MARK:FUNC:POW OFF" 'Switches off the power measurement in screen A. Characteristics: *RST value: - SCPI: device-specific Mode: This command is an event and therefore has no *RST value.
Page 452 R&S ESPI Remote Control – Description of Commands CALCulate Subsystem 6.5.6.5 CALCulate:MARKer:FUNCtion:STRack Subsystem The CALCulate:MARKer:FUNCtion:STRack subsystem defines the settings of the signal track. CALCulate<1|2>:MARKer<1...4>:FUNCtion:STRack:BANDwidth|BWIDth 10Hz to MAX(SPAN) These commands have the same function. For the selected measurement window they define the bandwidth around the center frequency within which the largest signal is searched.
Page 453 R&S ESPI Remote Control – Description of Commands CALCulate Subsystem CALCulate<1|2>:MARKer<1...4>:FUNCtion:STRack:THReshold -330dBm to +30dBm This command defines the threshold above which the largest signal is searched for in the selected measurement window. The function is independent of the selected marker, i.e. the numeric suffix <1...4>...
Page 454 R&S ESPI Remote Control – Description of Commands CALCulate Subsystem 6.5.6.6 CALCulate:MARKer:FUNCtion:SUMMary Subsystem This subsystem contains the commands for controlling the time domain power functions. These are pro- vided in the marker subsystem for reasons of compatibility with the FSE family. CALCulate<1|2>:MARKer<1...4>:FUNCtion:SUMMary:AOFF This command switches off all time domain measurements in the selected measurement window.
Page 455 R&S ESPI Remote Control – Description of Commands CALCulate Subsystem Example: "INIT:CONT OFF" 'Switches to single-sweep mode. "CALC:MARK:FUNC:SUMM:MEAN ON" 'Switches on the function in screen A. "CALC:MARK:FUNC:SUMM:AVER ON" 'Switches on the average value calculation in screen A. "INIT;*WAI" 'Starts a sweep and waits for the end. "CALC:MARK:FUNC:SUMM:MEAN:AVER:RES?"...
Page 456 R&S ESPI Remote Control – Description of Commands CALCulate Subsystem CALCulate<1|2>:MARKer<1...4>:FUNCtion:SUMMary:MEAN:RESult? This command queries the result of the measurement of the mean value in the selected measurement window. The function is independent of the marker selection, i.e. the numeric suffix <1...4> of :MARKer is irrelevant.
Page 457 R&S ESPI Remote Control – Description of Commands CALCulate Subsystem Characteristics: *RST value: ABSolute SCPI: device-specific Mode: CALCulate<1|2>:MARKer<1...4>:FUNCtion:SUMMary:PHOLd ON | OFF This command switches on or off the peak-hold function for the active time domain power measurement in the indicated measurement window. The function is independent of the marker selection, i.e.
Page 458 R&S ESPI Remote Control – Description of Commands CALCulate Subsystem CALCulate<1|2>:MARKer<1...4>:FUNCtion:SUMMary:PPEak:PHOLd:RESult? This command is used to query the result of the measurement of the positive peak value with active peak hold function. The query is only possible if the peak hold function has been activated previously using CALCulate<1|2>:MARKer<1...4>:FUNCtion:SUMMary:PHOLd.
Page 459 R&S ESPI Remote Control – Description of Commands CALCulate Subsystem CALCulate<1|2>:MARKer<1...4>:FUNCtion:SUMMary:PPEak[:STATe] ON | OFF This command switches on or off the measurement of the positive peak value in the selected measurement window. The function is independent of the marker selection, i.e. the numeric suffix <1...4> of MARKer is irrelevant.
Page 460 R&S ESPI Remote Control – Description of Commands CALCulate Subsystem Example: "INIT:CONT OFF" 'Switches to single-sweep mode. "CALC:MARK:FUNC:SUMM:RMS ON" 'Switches on the function in screen A. "CALC:MARK:FUNC:SUMM:AVER ON" Switches on the average value calculation in screen A. "INIT;*WAI" 'Starts a sweep and waits for the end. "CALC:MARK:FUNC:SUMM:RMS:AVER:RES?"...
Page 461 R&S ESPI Remote Control – Description of Commands CALCulate Subsystem CALCulate<1|2>:MARKer<1...4>:FUNCtion:SUMMary:RMS:RESult? This command queries the result of the measurement of the RMS power value in the selected measurement window. The function is independent of the marker selection, i.e. the numeric suffix <1...4> of :MARKer is irrelevant.
Page 462 R&S ESPI Remote Control – Description of Commands CALCulate Subsystem Example: "INIT:CONT OFF" 'Switches to single-sweep mode. "CALC:MARK:FUNC:SUMM:SDEV ON" 'Switches on the function in screen A. "CALC:MARK:FUNC:SUMM:AVER ON" 'Switches on the calculation of average in screen A. "INIT;*WAI" 'Starts a sweep and waits for the end. "CALC:MARK:FUNC:SUMM:MEAN:SDEV:RES?"...
Page 463 R&S ESPI Remote Control – Description of Commands CALCulate Subsystem CALCulate<1|2>:MARKer<1...4>:FUNCtion:SUMMary:SDEViation:RESult? This command queries the results of the standard deviation measurement. The function is independent of the marker selection, i.e. the numeric suffix <1...4> of :MARKer is irrelevant. It is only available in the time domain (span = 0).
Page 464: Calculate:math Subsystem
R&S ESPI Remote Control – Description of Commands CALCulate Subsystem 6.5.7 CALCulate:MATH Subsystem The CALCulate:MATH subsystem allows to process data from the SENSe-subsystem in numeric expres- sions. The measurement windows are selected by CALCulate1 (screen A) and CALCulate2 (screen B). CALCulate<1|2>:MATH[:EXPression][:DEFine] (<expr>) This command defines the mathematical expression for relating traces to trace1.
Page 465 R&S ESPI Remote Control – Description of Commands CALCulate Subsystem CALCulate<1|2>:MATH:STATe ON | OFF This command switches the mathematical relation of traces on or off. The measurement windows are selected via CALCulate1 (screen A) or 2 (screen B). Example: "CALC:MATH:STAT ON" 'Switches on the trace mathematics in screen A.
Page 466: Calculate:peaksearch I Psearch Subsystem
R&S ESPI Remote Control – Description of Commands CALCulate Subsystem CALCulate:PEAKsearch I PSEarch Subsystem 6.5.8 The CALCulate:PEAKsearch subsystem contains commands for verifying scan results in the test receiver mode. <nummeric value> CALCulate<1|2>:PEAKsearch|PSEarch:ADD This command adds a frequency value to the peaklist in receiver mode (RECEIVER – FINAL MEAS – EDIT PEAK LIST).
Page 467 R&S ESPI Remote Control – Description of Commands CALCulate Subsystem CALCulate<1|2>:PEAKsearch|PSEarch:MARGin MINimum .. MAXimum This command defines the margin for the peak search. The numeric suffix in CALCULATE<1|2> is not significant. Example: "CALC:PEAK:MARG 5 dB" Characteristics: *RST value: 6 dB SCPI: device-specific A, R Mode:...
Page 468: Calculate:statistics Subsystem
R&S ESPI Remote Control – Description of Commands CALCulate Subsystem 6.5.9 CALCulate:STATistics Subsystem The CALCulate:STATistics subsystem controls the statistical measurement functions in the instrument. The measurement window cannot be selected with these functions. The numeric suffix <1|2> in CALCu- late is therefore ignored. CALCulate<1|2>:STATistics:APD[:STATe] ON | OFF This command switches on or off the measurement of amplitude distribution (APD).
Page 469 R&S ESPI Remote Control – Description of Commands CALCulate Subsystem CALCulate<1|2>:STATistics:NSAMples 100 to 1E9 This command sets the number of measurement points to be acquired for the statistical measurement functions. Example: "CALC:STAT:NSAM 500" 'Sets the number of measurement points to be acquired to 500. Characteristics: *RST value: 100000 SCPI: device-specific Mode:...
Page 470 R&S ESPI Remote Control – Description of Commands CALCulate Subsystem CALCulate<1|2>:STATistics:SCALe:AUTO ONCE This command optimizes the level setting of the instrument depending on the measured peak power, in order to obtain maximum instrument sensitivity. To obtain maximum resolution, the level range is set as a function of the measured spacing between peak power and the minimum power for the APD measurement and of the spacing between peak power and mean power for the CCDF measurement.
Page 471 R&S ESPI Remote Control – Description of Commands CALCulate Subsystem CALCulate<1|2>:STATistics:SCALe:X:RLEVel -130dBm to 30dBm This command defines the reference level for the x-axis of the measurement diagram. The setting is identical to the reference level setting using the command DISPlay:WINDow:TRACe:Y:RLEVel. With the reference level offset <>...
Page 472: Calculate:threshold Subsystem
R&S ESPI Remote Control – Description of Commands CALCulate Subsystem 6.5.10 CALCulate:THReshold Subsystem The CALCulate:THReshold subsystem controls the threshold value for the maximum/minimum search of markers. The measurement windows are selected by CALCulate 1 (screen A) or 2 (screen B). CALCulate<1|2>:THReshold MINimum to MAXimum (depending on current unit) This command defines the threshold value for the maximum/minimum search of markers with marker search functions MAX PEAK, NEXT PEAK, etc.
Page 473: Calculate:tline Subsystem
R&S ESPI Remote Control – Description of Commands CALCulate Subsystem 6.5.11 CALCulate:TLINe Subsystem The CALCulate:TLINe subsystem controls the settings for the time lines. The measurement windows are selected by CALCulate 1 (screen A) or 2 (screen B). CALCulate<1|2>:TLINe<1|2> 0 to 1000s This command defines the position of the time lines.
Page 474: Calculate:unit Subsystem
R&S ESPI Remote Control – Description of Commands CALCulate Subsystem 6.5.12 CALCulate:UNIT Subsystem The CALCulate:Unit subsystem defines the units for power measurement settings. CALCulate<1|2>:UNIT:POWer DBM | V | A | W | DBPW | WATT | DBUV | DBMV | VOLT | DBUA | AMPere | DBPT | DBUV_M | DBUA_M This command selects the unit for power in the selected measurement window.
Page 475: Calibration Subsystem
R&S ESPI Remote Control – Description of Commands CALibration Subsystem 6.6 CALibration Subsystem The commands of the CALibration subsystem determine the data for system error correction in the instrument. CALibration:ABORt This command aborts the acquisition of correction data and restores the last complete correction data set.
Page 476 R&S ESPI Remote Control – Description of Commands CALibration Subsystem CALibration:RESult? This command outputs the results of the correction data acquisition. The lines of the result table (see chapter “Instrument Functions”, section “Recording the Correction Data – CAL Key” on page 4.110) are output as string data separated by commas: Return value:...
Page 477: Diagnostic Subsystem
R&S ESPI Remote Control – Description of Commands DIAGnostic Subsystem 6.7 DIAGnostic Subsystem The DIAGnostic subsystem contains the commands which support instrument diagnostics for mainte- nance, service and repair. In accordance with the SCPI standard, all of these commands are device-spe- cific.
Page 478 R&S ESPI Remote Control – Description of Commands DIAGnostic Subsystem DIAGnostic<1|2>:SERVice:INPut:PULSed[:STATe] ON | OFF This command toggles the calibration signal in the selected measurement window between pulsed and non-pulsed. The selection takes effect only if the RF input has been set to the internal reference signal using the DIAGnostic<1|2>:SERVice:INPut[:SELect] command.
Page 479 R&S ESPI Remote Control – Description of Commands DIAGnostic Subsystem Characteristics: *RST value: - SCPI: device-specific R, A Mode: DIAGnostic<1|2>:SERVice:STESt:RESult? This command reads the results of the selftest out of the instrument. The lines of the result table are output as string data separated by commas: The numeric suffix <1|2>...
Page 480: Display Subsystem
R&S ESPI Remote Control – Description of Commands DISPlay Subsystem 6.8 DISPlay Subsystem The DISPLay subsystem controls the selection and presentation of textual and graphic information as well as of measurement data on the display. The measurement windows are selected by WINDow1 (screen A) or WINDow2 (screen B). DISPlay:ANNotation:FREQuency ON | OFF This command switches the x-axis annotation on or off.
Page 481 R&S ESPI Remote Control – Description of Commands DISPlay Subsystem DISPlay:CMAP<1...34>:DEFault<1|2> This command resets the screen colors of all display items to their default settings. Two default settings DEFault1 and DEFault2 are available. The numeric suffix of CMAP is irrelevant. Example: "DISP:CMAP:DEF2"...
Page 482 R&S ESPI Remote Control – Description of Commands DISPlay Subsystem CMAP28 Bar graph PK- CMAP29 Bar graph QPK CMAP30 Bar graph AVER CMAP31 Bar graph RMS CMAP32 Final Meas CMAP33 Bar graph CACV CMAP34 Bar graph CRMS hue = TINT Parameter: sat = SATURATION lum = BRIGHTNESS...
Page 483 R&S ESPI Remote Control – Description of Commands DISPlay Subsystem DISPlay:FORMat SINGle | SPLit This command switches the measurement result display between FULL SCREEN and SPLIT SCREEN. The coupling of settings between screen A and screen B can be selected with the command INSTrument:COUPle.
Page 484 R&S ESPI Remote Control – Description of Commands DISPlay Subsystem DISPlay[:WINDow<1|2>]:ACTive? This command returns the active measurement window. The numeric response has following meaning: Screen A Screen B Screen C Screen D Example: "DISP:WIND:ACT?" returns the active window Characteristics: *RST value: -- SCPI: device-specific R, A Mode:...
Page 485 R&S ESPI Remote Control – Description of Commands DISPlay Subsystem DISPlay[:WINDow<1|2>]:TEXT[:DATA] <string> This command defines a comment (max. 20 characters) which can be displayed on the screen in the selected measurement window. Example: "DISP:WIND2:TEXT 'Noise Measurement'" 'Defines the title for screen B Characteristics: *RST value: ""...
Page 486 R&S ESPI Remote Control – Description of Commands DISPlay Subsystem Example: "INIT:CONT OFF" 'Switching to single-sweep mode. "SWE:COUN 16" 'Sets the number of measurements to 16. "DISP:WIND1:TRAC3:MODE MAXH" 'Switches on the calculation of the for trace 3 in screen A. "INIT;*WAI"...
Page 487 R&S ESPI Remote Control – Description of Commands DISPlay Subsystem Characteristics: *RST value: OFF SCPI: device-specific Mode: DISPlay[:WINDow<1|2>]:TRACe<1...3>:X[:SCALe]:ZOOM ON | OFF This command switches the zoom on or off. Example: "DISP:TRAC:X:ZOOM ON" Characteristics: *RST value: OFF SCPI: conform R, A Mode: The numeric suffix in TRACe<1...3>...
Page 488 R&S ESPI Remote Control – Description of Commands DISPlay Subsystem DISPlay[:WINDow<1|2>]:TRACe<1...3>:Y[:SCALe]:MODE ABSolute | RELative This command defines the scale type of the y-axis (absolute or relative) in the selected measurement window. SYSTem:DISPlay is set to OFF, this command has no immediate effect on the screen. The numeric suffix in TRACe<1...3>...
Page 489 R&S ESPI Remote Control – Description of Commands DISPlay Subsystem Mode: DISPlay[:WINDow<1|2>]:TRACe<1...3>:Y[:SCALe]:RVALue <numeric value> If the tracking generator option or the external generator control option (R&S FSP-B9/R&S FSP-B10) is available and the normalization in the NETWORK mode is activated, this value defines the power value assigned to the reference position in the selected measurement window.
Page 490: Format Subsystem
R&S ESPI Remote Control – Description of Commands FORMat Subsystem 6.9 FORMat Subsystem The FORMat subsystem specifies the data format of the data transmitted from and to the instrument. FORMat[:DATA] ASCii | REAL | UINT [, 8 | 32] This command specifies the data format for the data transmitted from the instrument to the control PC. The format settings are valid for the binary transmission of trace data (see also TRACe[:DATA]).
Page 491: Hcopy Subsystem
R&S ESPI Remote Control – Description of Commands HCOPy Subsystem 6.10 HCOPy Subsystem The HCOPy subsystem controls the output of display information for documentation purposes on output devices or files. The instrument allows two independent printer configurations which can be set sepa- rately with the numeric suffix <1|2>.
Page 492 R&S ESPI Remote Control – Description of Commands HCOPy Subsystem CMAP15 Table + softkey background CMAP16 Table + softkey text CMAP17 Table selected field text CMAP18 Table selected field background CMAP19 Table + data entry field opaque title bar CMAP20 Data entry field opaque text CMAP21 Data entry field opaque background...
Page 493 R&S ESPI Remote Control – Description of Commands HCOPy Subsystem HCOPy:DESTination<1|2> <string> This command selects the printer output medium (Disk, Printer or Clipboard) associated with configuration 1 or 2. The type of instrument is selected with SYSTem:COMMunicate:PRINter: SELect, which will automatically select a default output medium. Therefore the command HCOPy:DESTination should always be sent after setting the device type.
Page 494 R&S ESPI Remote Control – Description of Commands HCOPy Subsystem HCOPy:DEVice:LANGuage<1|2> GDI | WMF | EWMF | BMP This command determines the data format for the printed output. GDI (Graphics Device Interface): Default format for output to a printer that has Parameter: been configured under Windows.
Page 495 R&S ESPI Remote Control – Description of Commands HCOPy Subsystem This command is an event and therefore has no *RST value and no query. HCOPy:ITEM:WINDow<1|2>:TABle:STATe ON | OFF This command selects the output of the currently displayed tables. Example: "HCOP:ITEM:WIND:TABL:STAT ON" Characteristics: *RST value: OFF SCPI: device-specific R, A...
Page 496: Hold Subsystem
R&S ESPI Remote Control – Description of Commands HOLD Subsystem 6.11 HOLD Subsystem The HOLD subsystem contains the command for interrupting a scan measurment. HOLD This command interrupts a current scan measurement. The scan is resumed by “INITiate<1|2>[: IMMediate]” on page 6.125 Example: "HOLD"...
Page 497: Initiate Subsystem
R&S ESPI Remote Control – Description of Commands INITiate Subsystem 6.12 INITiate Subsystem The INITiate subsystem controls the init measurement function in the selected measurement window. In receiver mode, a distinction is made between single measurement (INITiate1) and scan (INITiate2). In analyzer mode, a distinction is made between INITiate1 (screen A) and INITiate2 (screen B) in split screen representation.
Page 498 R&S ESPI Remote Control – Description of Commands INITiate Subsystem Example: "INIT2:CONT OFF" 'Switches to single-sweep mode. "DISP:WIND:TRAC:MODE AVER 'Switches on trace averaging. "SWE:COUN 20" Setting the sweep counter to 20 sweeps. "INIT2;*WAI" 'Starts the measurement and waits for the end of the 20 sweeps. "INIT2:CONM;*WAI"...
Page 499 R&S ESPI Remote Control – Description of Commands INITiate Subsystem INITiate<1|2>:DISPlay ON | OFF This command configures the behavior of the display during a single sweep. The numeric suffix of INITiate is irrelevant with this command. OFF: the display is switched off during the measurement, Parameter: ON: the display is switched on during the measurement.
Page 500 R&S ESPI Remote Control – Description of Commands INITiate Subsystem INITiate<1|2>[:IMMediate] The command initiates a new sweep in the indicated measurement window. In receiver mode with SINGLE SCAN selected, the R&S ESPI performs a single scan and stops at the end frequency.
Page 501: Input Subsystem
R&S ESPI Remote Control – Description of Commands INPut Subsystem 6.13 INPut Subsystem The INPut subsystem controls the input characteristics of the RF inputs of the instrument. In receiver mode, the suffix is irrelevant. In analyzer mode, the measurement windows are assigned to INPut1 (screen A) and INPut2 (screen B).
Page 502 R&S ESPI Remote Control – Description of Commands INPut Subsystem Characteristics: *RST value: OFF SCPI: device-specific Mode: INPut<1|2>:GAIN:AUTO ON | OFF This command includes the preamplifier into the autoranging function of the R&S ESPI. Example: ":INP:GAIN:AUTO ON" 'Includes the preamplifier into the auto range function Characteristics: *RST value: OFF SCPI: conform Mode:...
Page 503 R&S ESPI Remote Control – Description of Commands INPut Subsystem INPut<1|2>:LISN:PEARth GROunded | FLOating This command selects the setting of the Protective EARth that is controlled via the USER port. In receiver mode, this setting is used also for the preliminary measurement. The availability depends on the selected V-network.
Page 504 R&S ESPI Remote Control – Description of Commands INPut Subsystem INPut<1|2>:UPORt:STATe ON | OFF This command toggles the control lines of the user ports between INPut and OUTPut. Example: "INP:UPOR:STAT ON" Characteristics: *RST value: ON SCPI: device-specific R, A Mode: With ON, the user port is switched to INPut, with OFF to OUTPut.
Page 505: Instrument Subsystem
R&S ESPI Remote Control – Description of Commands INSTrument Subsystem 6.14 INSTrument Subsystem The INSTrument subsystem selects the operating mode of the unit either via text parameters or fixed numbers. Only operating modes available for the base unit and the models and the options described in this manual (see “Documentation Overview”...
Page 506 R&S ESPI Remote Control – Description of Commands INSTrument Subsystem INSTrument[:SELect] SANalyzer | RECeiver | ADEMod This command enables you to switch between modes by entering the mode designation. SANalyzer: spectrum analyzer Parameter: RECeiver: Receiver mode ADEMod: FM demodulator Example: "INST SAN"...
Page 507: Mmemory Subsystem
R&S ESPI Remote Control – Description of Commands MMEMory Subsystem 6.15 MMEMory Subsystem The MMEMory (mass memory) subsystem provides commands which allow for access to the storage media of the instrument and for storing and loading various instrument settings. The various drives can be addressed via the "mass storage unit specifier" <msus> using the conven- tional DOS syntax.
Page 508 R&S ESPI Remote Control – Description of Commands MMEMory Subsystem MMEMory:CATalog? <path> This command reads the indicated directory. According to DOS convention, wild card characters can be entered in order to query e.g. a list of all files of a certain type. The path name should be in conformance with DOS conventions and may also include the drive name.
Page 509 R&S ESPI Remote Control – Description of Commands MMEMory Subsystem MMEMory:CLEar:STATe 1,<file_name> This command deletes the instrument setting selected by <file_name>. All associated files on the mass memory storage are cleared. A list of the extensions used is included under MMEMory:LOAD: STATe.
Page 510 R&S ESPI Remote Control – Description of Commands MMEMory Subsystem MMEMory:DATA <file_name>[,<block data>] This command writes the block data contained in <block> into the file characterized by <file_name>. The GPIB delimiter must be set to EOI to obtain error-free data transfer. The associated query command reads the indicated file from the mass memory and transfers it to the control computer via the GPIB.
Page 511 R&S ESPI Remote Control – Description of Commands MMEMory Subsystem MMEMory:DELete:IMMediate <file_name> This command deletes the indicated files. Any ’read only’ labels are ignored. The indication of the file name contains the path and, optionally, the drive name. Indication of the path complies with DOS conventions.
Page 512 R&S ESPI Remote Control – Description of Commands MMEMory Subsystem MMEMory:LOAD:STATe 1,<file_name> This command loads device settings from data set files (*.FSP). The contents of the file are loaded and set as the new device state. Items can be individually deselected for the recall. The maximum items to be loaded are the maximum number of items stored in the data set file.
Page 513 R&S ESPI Remote Control – Description of Commands MMEMory Subsystem MMEMory:MSIS <device> This command changes to the drive indicated. The drive may be the internal hard disk “D:”, a memory stick or the floppy disk drive “A:”. Example: "MMEM:MSIS 'A:'" Characteristics: *RST value: "D:' SCPI: conform R, A...
Page 514 R&S ESPI Remote Control – Description of Commands MMEMory Subsystem MMEMory:SELect[:ITEM]:ALL This command includes all data subsets in the list device settings to be stored/loaded. Example: "MMEM:SEL:ALL" Characteristics: *RST value: -- SCPI: device-specific R, A Mode: This command is an event and therefore has no *RST value. MMEMory:SELect[:ITEM]:CLISt ON | OFF This command includes the scan channel list to be stored/loaded.
Page 515 R&S ESPI Remote Control – Description of Commands MMEMory Subsystem MMEMory:SELect[:ITEM]:FINal ON | OFF This command includes the final measurement data in the list of partial datasets of a device setting to be stored/loaded. Example: "MMEM:SEL:FIN ON" 'inserts the final measurement data in the list of partial data sets Characteristics: *RST value: ON SCPI: device-specific R, A...
Page 516 R&S ESPI Remote Control – Description of Commands MMEMory Subsystem MMEMory:SELect[:ITEM]:NONE This command deletes all data subsets from the list of device settings to be stored/loaded. Example: "MMEM:SEL:NONE" Characteristics: *RST value: -- SCPI: device-specific R, A Mode: This command is an event and therefore has no *RST value. MMEMory:SELect[:ITEM]:SCData ON | OFF This command adds the tracking generator calibration data to the list of device settings to be stored/ loaded.
Page 517 R&S ESPI Remote Control – Description of Commands MMEMory Subsystem Characteristics: *RST value: - SCPI: device-specific Mode: This command is an event and therefore has no *RST value and no query. MMEMory:STORe<1|2>:MARKer <file_name> This command saves the data of all active markers to a file < file_name >. Example: "MMEM:STOR:MARK 'C:\marker.txt'"...
Page 518 R&S ESPI Remote Control – Description of Commands MMEMory Subsystem Different language versions of evaluation programs may require different handling of the decimal point. Using the DECIM SEP softkey, you can thus choose between the delimiters '.' (decimal point) and ',' (comma). <file_name>...
Page 519 R&S ESPI Remote Control – Description of Commands MMEMory Subsystem File contents Explanation File header Type;R&S ESPI; Model Version;3.9x; Firmware version Date;02.Feb 2007; Storage date of data set Mode;ANALYZER;SPURIOUS; Operating mode of the device Format for Spurious Emissions measurement Start;9000.000000;Hz Start/stop of the span Stop;8000000000.000000;Hz Unit: Hz...
Page 520: Output Subsystem
R&S ESPI Remote Control – Description of Commands OUTPut Subsystem 6.16 OUTPut Subsystem The OUTPut subsystem controls the output features of the instrument. In conjunction with the tracking generator option, a distinction is made between OUTPut1 (screen A) and OUTPut2 (screen B). OUTPut<1|2>[:STATe] ON | OFF This command switches the tracking generator on or off.
Page 521: Sense Subsystem
R&S ESPI Remote Control – Description of Commands SENSe Subsystem 6.17 SENSe Subsystem The SENSe subsystem is organized in several subsystems. The commands of these subsystems directly control device-specific settings, they do not refer to the signal characteristics of the measure- ment signal.
Page 522 R&S ESPI Remote Control – Description of Commands SENSe Subsystem 6.17.1 SENSe:AVERage Subsystem The SENSe:AVERage subsystem calculates the average of the acquired data. A new test result is obtained from several successive measurements. There are two types of average calculation: logarithmic and linear. In case of logarithmic average calcu- lation (denoted with VIDeo), the average value of the measured logarithmic power is calculated and in case of linear average calculation, the linear power is averaged before the logarithm is applied.
Page 523 R&S ESPI Remote Control – Description of Commands SENSe Subsystem [SENSe<1|2>:]AVERage:TYPE VIDeo | LINear This command selects the type of average function. If VIDeo is selected, the logarithmic power is averaged and, if LINear is selected, the power values are averaged before they are converted to logarithmic values.
Page 524: Sense:bandwidth Subsystem
R&S ESPI Remote Control – Description of Commands SENSe Subsystem 6.17.2 SENSe:BANDwidth Subsystem This subsystem controls the setting of the instrument's filter bandwidths. Both groups of commands (BANDwidth and BWIDth) perform the same functions. The measurement windows are selected by SENSe1 (screen A) and SENSe2 (screen B). [SENSe<1|2>:]BANDwidth|BWIDth:FFT WIDE | AUTO | NARROW This command allows to specify between the following three options for FFT filters.
Page 525 R&S ESPI Remote Control – Description of Commands SENSe Subsystem [SENSe<1|2>:]BANDwidth|BWIDth[:RESolution]:AUTO ON | OFF In receiver mode with activated quasipeak, CISPR Average or CISPR RMS detector, this command either automatically couples the IF bandwidth of the R&S ESPI to the frequency range or cancels the coupling.
Page 526 R&S ESPI Remote Control – Description of Commands SENSe Subsystem When changing the filter type, the next larger filter bandwidth is selected if the same filter bandwidth is not available for the new filter type. Example: "BAND:TYPE NORM" Characteristics: *RST value: NORMal SCPI: device-specific R, A Mode:...
Page 527 R&S ESPI Remote Control – Description of Commands SENSe Subsystem [SENSe<1|2>:]BANDwidth|BWIDth:VIDeo:TYPE LINear | LOGarithmic This command selects the psition of the video filter in the signal path, provided that the resolution bandwidth is ≤100 kHz: • If LINear is selected, the video filter is connected ahead of the logarithmic amplifier (default) •...
Page 528 R&S ESPI Remote Control – Description of Commands SENSe Subsystem 6.17.3 SENSe:CORRection Subsystem The SENSe:CORRection subsystem controls the correction of measured results by means of frequency- dependent correction factors (e.g. for antenna or cable attenuation). This subsystem also controls calibration and normalization during operation with the tracking generator options (B9/B10).
Page 529 R&S ESPI Remote Control – Description of Commands SENSe Subsystem Characteristics: *RST value: - SCPI: conform Mode: This command is an event and therefore has no *RST value and no query. This command is only valid in conjunction with the tracking generator / ext. generator control option (B9/B10).
Page 530 R&S ESPI Remote Control – Description of Commands SENSe Subsystem [SENSe<1|2>:]CORRection:TRANsducer:CATalog? This command queries all the names of the transducer files saved on the hard disc. The syntax of the output is: <sum of file length of all following files>,<free spaces on hard disc>,<1 file name>,<1 file length>, <2...
Page 531 R&S ESPI Remote Control – Description of Commands SENSe Subsystem [SENSe<1|2>:]CORRection:TRANsducer:GENerate <name> This command generates a transducer factor <name> using normalized trace data. The function is only available when normalization is switched on. <name>::= Name of the transducer factors as string data with up to 8 characters. Parameter: Example: "CORR:TRAN:GEN 'FACTOR1'"...
Page 532 R&S ESPI Remote Control – Description of Commands SENSe Subsystem [SENSe<1|2>:]CORRection:TRANsducer:UNIT <string> This command specifies the unit for the selected transducer factor. Prior to this command, the command SENS:CORR:TRAN:SEL must be sent. <string>::= 'DB' | 'DBM' | 'DBMV' | 'DBUV' | 'DBUV/M' | 'DBUA' | 'DBUA/M' | 'DBPW' Parameter: | 'DBPT' Example:...
Page 533 R&S ESPI Remote Control – Description of Commands SENSe Subsystem [SENSe<1|2>:]CORRection:TSET:COMMent <string> This command defines the comment for the selected transducer set. Prior to this command, the command SENS:CORR:TSET:SEL must be sent. Example: "CORR:TSET:SEL 'SET1'" "CORR:TSET:COMM 'SET FOR ANTENNA'" Characteristics: *RST value: '' (empty comment) SCPI: device-specific Mode: [SENSe<1|2>:]CORRection:TSET:DELete...
Page 534 R&S ESPI Remote Control – Description of Commands SENSe Subsystem R, A Mode: [SENSe<1|2>:]CORRection:TSET[:STATe] ON | OFF This command switches the selected transducer set on or off. Example: "CORR:TSET:SEL 'SET1'" "CORR:TSET ON" Characteristics: *RST value: OFF SCPI: device-specific R, A Mode: [SENSe<1|2>:]CORRection:TSET:UNIT <string>...
Page 535 R&S ESPI Remote Control – Description of Commands SENSe Subsystem 6.17.4 SENSe:DEMod Subsystem The SENSe:DEMod subsystem controls the analog demodulation of the video signal. The measurement window is selected by SENSe1 (screen A) and SENSe2 (screen B). [SENSe<1|2>:]DEMod OFF | AM | FM This command selects the type of analog demodulation.
Page 536 R&S ESPI Remote Control – Description of Commands SENSe Subsystem 6.17.5 SENSe:DETector Subsystem The SENSe:DETector subsystem controls the acquisition of measurement data via the selection of the detector for the corresponding trace. The measurement windows are selected by SENSe1 (screen A) and SENSe2 (screen B).
Page 537 R&S ESPI Remote Control – Description of Commands SENSe Subsystem Characteristics: *RST value: ON SCPI: conform Mode: [SENSe<1|2>:]DETector<1..3>:RECeiver[:FUNCtion] POSitive | NEGative | RMS | AVERage | QPEak | CAVerage | CRMS In receiver mode, this command switches on the detectors for an individual measurement to record measured values.
Page 538 R&S ESPI Remote Control – Description of Commands SENSe Subsystem 6.17.6 SENSe:ESPectrum Subsystem This chapter describes all remote control commands available to configure Spectrum Emission Mask measurements. [SENSe<1|2>:]ESPectrum:BWIDth numeric_value This command defines the bandwidth used for measuring the channel power in the Spectrum Emission Mask measurement.
Page 539 R&S ESPI Remote Control – Description of Commands SENSe Subsystem Characteristics: *RST value:- SCPI: device-specific Mode: [SENSe<1|2>:]ESPectrum:PRESet[:STANdard] 'xml_file' This command selects the specified XML file under D:\r_s\instr\sem_std. If the file is stored in a subdirectory, include the relative path. The query returns information about the selected standard, the power class and the link direction. If no standard has been selected, the query returns ''.
Page 540 R&S ESPI Remote Control – Description of Commands SENSe Subsystem [SENSe<1|2>:]ESPectrum:RANGe<1...20>:COUNt? This command indicates the number of defined ranges of the Spectrum Emission Mask measurement. The numeric suffixes <1|2> at SENSe and <1...20> at RANGe are irrelevant for this command. Example: "ESP:RANG:COUN?"...
Page 541 R&S ESPI Remote Control – Description of Commands SENSe Subsystem [SENSe<1|2>:]ESPectrum:RANGe<1...20>[:FREQuency]:STOP <numeric_value> This command sets the relative stop frequency of a range in the Spectrum Emission Mask measurement. The numeric suffixes <1...20> specify the range. The numeric suffix at SENSe<1|2> is irrelevant. Example: "ESP:RANG2:STOP 2.52MHZ"...
Page 542 R&S ESPI Remote Control – Description of Commands SENSe Subsystem [SENSe<1|2>:]ESPectrum:RANGe<1..20>:INSert AFTer | BEFore This command inserts a new range before or after the specified range. The range numbers are updated accordingly. The numeric suffix at RANGe<1...20> specify the range. The numeric suffixes <1...20>...
Page 543 R&S ESPI Remote Control – Description of Commands SENSe Subsystem Characteristics: *RST value: depends on range SCPI: device-specific Mode: [SENSe<1|2>:]ESPectrum:RANGe<1..20>:LIMit:RELative:STOP <numeric_value> This command defines the relative limit at the stop frequency of the range for the Spectrum Emission Mask measurement. The numeric suffixes <1...20>...
Page 544 R&S ESPI Remote Control – Description of Commands SENSe Subsystem [SENSe<1|2>:]ESPectrum:RANGe<1...20>:RLEVel <numeric_value> This command defines the reference level of a range in the Spectrum Emission Mask measurement. The numeric suffixes <1...20> specify the range. The numeric suffix at SENSe<1|2> is irrelevant. Example: "ESP:RANG2:RLEV -30"...
Page 545 R&S ESPI Remote Control – Description of Commands SENSe Subsystem [SENSe<1|2>:]ESPectrum:RRANge? This command returns the numer of the reference range of the Spectrum Emission Mask measurement. The numeric suffixes <1...20> specify the range. The numeric suffix at SENSe<1|2> is irrelevant. Example: "ESP:RRAN?"...
Page 546 R&S ESPI Remote Control – Description of Commands SENSe Subsystem 6.17.7 SENSe:FMEasurement Subsystem This subsystem controls the parameters of final measurement. [SENSe<1|2>:]FMEasurement:AUTO ON | OFF This command switches between automatic and interactive final measurement. Example: "FME:AUTO ON" Characteristics: *RST value: ON SCPI: device-specific Mode: [SENSe<1|2>:]FMEasurement:LISN:FILTer:HPAS[:STATe] ON | OFF...
Page 547 R&S ESPI Remote Control – Description of Commands SENSe Subsystem [SENSe<1|2>:]FMEasurement:LISN[:TYPE] TWOPhase | FOURphase | ESH3Z5 | ESH2Z5 | ENV4200 | ENV216 | OFF This command selects whether a V-network is driven automatically via the user port in the final measurement and, if yes, which one: TWOPhase and ESH3Z5 R&S ESH3-Z5 (two phases and protective earth are controllable)
Page 548 R&S ESPI Remote Control – Description of Commands SENSe Subsystem [SENSe<1|2>:]FMEasurement:TIME <numeric_value> This command defines the measurement time in which the values indicated in the peak list (final measurement values) are re-checked. Example: ":FME:TIME 0.01" Characteristics: *RST value: 1 s SCPI: device-specific Mode: Operating Manual 1164.6607.12 - 02...
Page 549: Sense:frequency Subsystem
R&S ESPI Remote Control – Description of Commands SENSe Subsystem 6.17.8 SENSe:FREQuency Subsystem The SENSe:FREQuency subsystem defines the frequency axis of the active display. The frequency axis can either be defined via the start/stop frequency or via the center frequency and span. The measurement windows are selected by SENSe1 (screen A) and SENSe2 (screen B).
Page 550 R&S ESPI Remote Control – Description of Commands SENSe Subsystem [SENSe<1|2>:]FREQuency:CENTer:STEP:LINK:FACTor 1 to 100 PCT This command couples the step width of the center frequency with a factor to the span (span >0) or to the resolution bandwidth (span = 0). Example: "FREQ:CENT:STEP:LINK:FACT 20PCT"...
Page 551 R&S ESPI Remote Control – Description of Commands SENSe Subsystem Mode: This command is an event and therefore has no *RST value and no query. [SENSe<1|2>:]FREQuency:STARt 0 to f This command defines the start frequency of the overall scan in receiver mode. It defines the start frequency of the sweep in analyzer mode..
Page 552 R&S ESPI Remote Control – Description of Commands SENSe Subsystem 6.17.9 SENSe:LIST Subsystem The commands of this subsystem are used for measuring the power at a list of frequency points with dif- ferent device settings. The measurement is always performed in the time domain (span = 0 Hz). A new trigger event is required for each test point (exception: Trigger FREE RUN).
Page 553 R&S ESPI Remote Control – Description of Commands SENSe Subsystem 'Configuration of the status reporting system for the generation of an SRQ on operation complete *ESE 1 *SRE 32 'Configuring and starting the measurement "SENSe:LIST:POWer 935.2MHz,-20dBm,10dB,OFF,NORM,1MHz,3MHz,434us,0, 935.4MHz,-20dBm,10dB,OFF,NORM,30kHz,100kHz,434us,0, 935.6MHz,-20dBm,10dB,OFF,NORM,30kHz,100kHz,434us,0; *OPC" 'Further actions of the control computer during measurement 'Response to service request On SRQ: SENSe:LIST:POWer:RESult?
Page 554 R&S ESPI Remote Control – Description of Commands SENSe Subsystem CFILter: channel filter. These are especially steep-edged filters, which are used for example in Fast ACP measurement to ensure the band-limiting of a transmission channel in the time domain. RRC: Root Raised Cosine filter.
Page 555 R&S ESPI Remote Control – Description of Commands SENSe Subsystem Step Freq. Ref Level RF Att el Att Filter type Meas Time TRG Level [MHz] (reserved) 935.2 -20 dBm 10 dB Normal 1 MHz 3 MHz 434 us 935.4 -20 dBm 10 dB 10dB Channel...
Page 556 R&S ESPI Remote Control – Description of Commands SENSe Subsystem • The value 0 s deactivates the use of GATED TRIGGER; other values activate the GATED TRIGGER function. • Values <> 0 s are only possible if <trigger mode> is different from IMMediate. Otherwise, an execution error is triggered.
Page 557 R&S ESPI Remote Control – Description of Commands SENSe Subsystem [SENSe<1|2>:]LIST:RANGe<1...20>:BANDwidth:VIDeo <numeric_value> This command selects the video bandwidth (VBW) of a range in the spurious measurement. Example: "LIST:RANG2:BAND:VIDeo 40E3" 'Sets the VBW to 40 KHz. Characteristics: *RST value: 30 kHz SCPI: device-specific Mode: [SENSe<1|2>:]LIST:RANGe<1...20>:BREak ON | OFF...
Page 558 R&S ESPI Remote Control – Description of Commands SENSe Subsystem [SENSe<1|2>:]LIST:RANGe<1...20>:FILTer:TYPE NORMal | CHANnel | RRC | PULSe This command sets the filter in the spurious measurement. For details on filter type refer to chapter 4, section “Filter Types” on page 4.85.
Page 559 R&S ESPI Remote Control – Description of Commands SENSe Subsystem [SENSe<1|2>:]LIST:RANGe<1...20>:INPut:GAIN:STATe ON | OFF This command switches the preamplifier of a range in the spurious measurement on or off. Example: "LIST:RANG2:INP:GAIN:STAT ON" 'Activates the preamplifier for range 2 Characteristics: *RST value: OFF SCPI: device-specific Mode: [SENSe<1|2>:]LIST:RANGe<1...20>:LIMit -200dB to +200dB...
Page 560 R&S ESPI Remote Control – Description of Commands SENSe Subsystem [SENSe<1|2>:]LIST:RANGe<1...20>:RLEVel <numeric_value> This command defines the reference level of a range in the spurious measurement. Example: "LIST:RANG2:RLEV -30" 'Sets the reference level in range 2 to -30 dBm Characteristics: *RST value: - SCPI: device-specific Mode: [SENSe<1|2>:]LIST:RANGe<1...20>:SWEep:TIME <numeric_value>...
Page 561 R&S ESPI Remote Control – Description of Commands SENSe Subsystem 6.17.10 SENSe:MPOWer Subsystem The commands of this subsystem are used to determine the mean burst power or peak burst power for a given number of signal bursts, and for outputting the results in a list. Since all the settings required for a measurement are combined in a single command, the measurement speed is considerably higher than when using individual commands.
Page 562 R&S ESPI Remote Control – Description of Commands SENSe Subsystem 1. Setting up the instrument and at the same time querying the result list: This method ensures the smallest delay between measurement and the output of the measured values, but requires the control computer to wait actively for the response of the instrument. 2.
Page 563 R&S ESPI Remote Control – Description of Commands SENSe Subsystem [SENSe<1|2>:]MPOWer:RESult:MIN? This command queries the minimum power value in a multiple burst power measurement as configured and initiated with SENSe:MPOWer[:SEQuence]. The unit used for the return values is always dBm. If no measurement result is available, the command will return a query error.
Page 564 R&S ESPI Remote Control – Description of Commands SENSe Subsystem [SENSe<1|2>:]MPOWer[:SEQuence] <analyzer freq>,<rbw>,<meas time>,<trigger source>, <trigger level>,<trigger offset>,<type of meas>,<# of meas> This command configures the instrument setup for multiple burst power measurement and starts a measurement sequence. When synchronizing the command with *OPC, a service request is generated as soon as the defined number of individual measurements (# of meas) is reached.
Page 565 R&S ESPI Remote Control – Description of Commands SENSe Subsystem To properly use this command, you have to specify the unit of the trigger level (DBM or PCT). <trigger offset> Offset between the detection of the trigger signal and the start of the measurement. The range is from 125 ns to 100s <type of meas>...
Page 566 R&S ESPI Remote Control – Description of Commands SENSe Subsystem The measurement function always uses trace 1 in the selected screen, and acti- vates the selected screen. Repeated use of the command without changes to its parameters (i.e. using the same settings again) will speed up the measurement since the previous hardware settings will be cached and therefore additional hardware settling times will be avoided.
Page 567 R&S ESPI Remote Control – Description of Commands SENSe Subsystem 6.17.11 SENSe:POWer Subsystem This subsystem controls the setting of the instrument's channel and adjacent channel power measure- ments. The measurement windows are selected by SENSe1 (screen A) and SENSe2 (screen B). [SENSe<1|2>:]POWer:ACHannel:ACPairs 0 to 12 This command sets the number of adjacent channels (upper and lower channel in pairs).
Page 568 R&S ESPI Remote Control – Description of Commands SENSe Subsystem [SENSe<1|2>:]POWer:ACHannel:BANDwidth|BWIDth[:CHANnel] 100 Hz to 1000 MHz This command sets the channel bandwidth of the radio communication system. The bandwidths of adjacent channels are not influenced by this modification (in contrast to the FSE family). With SENS:POW:HSP ON the steep-edged channel filters from the table "List of available channel filters"...
Page 569 R&S ESPI Remote Control – Description of Commands SENSe Subsystem [SENSe<1|2>:]POWer:ACHannel:FILTer:ALPHa:CHANnel<1...12> 0…1 This command sets the rolloff factor of the RRC weighting filter for the TX channel. It is only available if Fast ACP is not active and no predefine standard is selected. Example: "POW:ACH:FILT:ALPH:CHAN 0.26"...
Page 570 R&S ESPI Remote Control – Description of Commands SENSe Subsystem [SENSe<1|2>:]POWer:ACHannel:FILTer:STATe:CHANnel<1...12> ON | OFF This command switches the weigthing filter state for the TX channel on or off. It is only available if Fast ACP is not active and no predefine standard is selected. This command changes the setting for the TX channel.
Page 571 R&S ESPI Remote Control – Description of Commands SENSe Subsystem [SENSe<1|2>:]POWer:ACHannel:PRESet:RLEVel This command adapts the reference level to the measured channel power and – if required - switches on previously the adjacent channel power measurement. This ensures that the signal path of the instrument is not overloaded.
Page 572 R&S ESPI Remote Control – Description of Commands SENSe Subsystem [SENSe<1|2>:]POWer:ACHannel:REFerence:TXCHannel:AUTO MINimum | MAXimum | LHIGhest | This command activates or deactivates the automatic selection of a transmission channel to be used as a reference channel in relative adjacent channel power measurements. The transmission channel with the highest power, the transmission channel with the lowest power, or the transmission channel nearest to the adjacent channels can be defined as a reference channel.
Page 573 R&S ESPI Remote Control – Description of Commands SENSe Subsystem [SENSe<1|2>:]POWer:ACHannel:SPACing:ALTernate<1...11> 100 Hz to 2000 MHz This command defines the spacing between the alternate adjacent channels and the TX channel. If the spacing to an alternate adjacent channel ALTernate<k> is modified, the spacing to all the following alternate adjacent channels ALTernate<n>...
Page 574 R&S ESPI Remote Control – Description of Commands SENSe Subsystem [SENSe<1|2>:]POWer:BANDwidth|BWIDth 10 to 99.9PCT This command defines the percentage of the power with respect to the total power. This value is the basis for the occupied bandwidth measurement (command: POWer:ACHannel:PRESet OBW). The command is only available in the frequency domain (span >...
Page 575 R&S ESPI Remote Control – Description of Commands SENSe Subsystem [SENSe<1|2>:]POWer:TRACe 1 to 3 This command assigns the channel/adjacent channel power measurement to the indicated trace in the selected measurement window. The corresponding trace must be active, i.e. its state must be different from blank.
Page 576: Sense:roscillator Subsystem
R&S ESPI Remote Control – Description of Commands SENSe Subsystem 6.17.12 SENSe:ROSCillator Subsystem This subsystem controls the reference oscillator. The numeric suffix in SENSe is irrelevant for the com- mands of this subsystem. [SENSe<1|2>:]ROSCillator:EXTernal:FREQuency 1MHz to 20MHz This command informs the instrument on the frequency of the external reference oscillator. This frequency is used as starting point for the synchronization of the internal reference frequencies.
Page 577 R&S ESPI Remote Control – Description of Commands SENSe Subsystem [SENSe<1|2>:]ROSCillator[:INTernal]:TUNE:SAVE This command saves the new value for the tuning of the internal reference oscillator. The factory-set value in the EEPROM is overwritten. This command is only available at service level 1. Example: "ROSC:TUN:SAV"...
Page 578 R&S ESPI Remote Control – Description of Commands SENSe Subsystem 6.17.13 SENSe:SCAN Subsystem This subsystem controls the parameters for the receiver scan data. The numeric suffix in [SENSe<1|2>:]SCAN selects the scan range. The measurement window is selected by SENSe1 (screen A) and SENSe2 (screen B). [SENSe<1|2>:]SCAN<1...10>:BANDwidth:RESolution f to f This command defines the bandwidth for the selected receiver scan range.
Page 579 R&S ESPI Remote Control – Description of Commands SENSe Subsystem [SENSe<1|2>:]SCAN<1...10>:INPut:GAIN:AUTO ON | OFF This command includes the preamplifier in the autoranging function of the selected receiver scan range. Example: ":SCAN1:INP:GAIN:AUTO ON" 'Includes the preamplifier in the autoranging function for scan range 1 Characteristics: *RST value: OFF SCPI: device-specific Mode:...
Page 580 R&S ESPI Remote Control – Description of Commands SENSe Subsystem Mode: [SENSe<1|2>:]SCAN<1...10>:STEP f to f This command defines the step size for the frequency of the selected receiver scan range. Example: ":SCAN1:STEP 100Hz" 'Sets the step size for the frequency of scan range 1 to 100 Hz Characteristics: *RST value: 4 kHz (range 1) 40 kHz (range 2) SCPI: device-specific...
Page 581 R&S ESPI Remote Control – Description of Commands SENSe Subsystem 6.17.14 SENSe:SWEep Subsystem This subsystem controls the sweep parameters. The measurement windows are selected by SENSe1 (screen A) and SENSe2 (screen B). [SENSe<1|2>:]SWEep:COUNt 0 to 32767 This command defines the number of scans started with single scan in receiver mode, In analyzer mode, this command defines the number of sweeps started with single sweep, which are used for calculating the average or maximum value.
Page 582 R&S ESPI Remote Control – Description of Commands SENSe Subsystem [SENSe<1|2>:]SWEep:EGATe ON | OFF This command switches on/off the sweep control by an external gate signal. If the external gate is selected the trigger source is automatically switched to EXTernal as well. In case of measurement with external gate, the measured values are recorded as long as the gate is opened.
Page 583 R&S ESPI Remote Control – Description of Commands SENSe Subsystem [SENSe<1|2>:]SWEep:EGATe:LENGth 0 to 100 s In case of edge triggering, this command determines the time interval during which the instrument sweeps. Example: "SWE:EGAT:LENG 10ms" Characteristics: *RST value: 0s SCPI: device-specific Mode: [SENSe<1|2>:]SWEep:EGATe:POLarity POSitive | NEGative This command determines the polarity of the external gate signal.
Page 584 R&S ESPI Remote Control – Description of Commands SENSe Subsystem [SENSe<1|2>:]SWEep:EGATe:TRACe<1..3>PERiod <value> The period of the signal is set for the gate range table. The suffix after TRACe indicates the trace. Example: "SWE:EGAT:TRAC1:PER 5ms" ’Period of trace 1 is set to 5 ms. Characteristics: *RST value: 1.797693135E+308 SCPI: device-specific Mode:...
Page 585 R&S ESPI Remote Control – Description of Commands SENSe Subsystem [SENSe<1|2>:]SWEep:MODE AUTO | LIST | ESPectrum This command controls the sweep continuation. AUTO free running sweep - the spurious list is activated ESPectrum activates the Spectrum Emission Mask measurement LIST Activates the spurious emissions measurement.
Page 586 R&S ESPI Remote Control – Description of Commands SENSe Subsystem Characteristics: *RST value: - (analyzer; AUTO is set to ON) 100 ms (receiver) SCPI: conform Mode: R, A [SENSe<1|2>:]SWEep:TIME:AUTO ON | OFF This command controls the automatic coupling of the sweep time to the frequency span and bandwidth settings.
Page 587 R&S ESPI Remote Control – Description of Commands SENSe Subsystem 6.17.15 SENSe:TV Subsystem This subsystem controls the TV trigger part of option R&S FSP-B6 (TV and RF trigger). The setup of the individual trigger parameters is included in subsystem TRIGger. [SENSe<1|2>:]TV:CCVS INTernal | EXTernal This command selects between an internal and an external CCVS signal as TV demodulator input signal.
Page 588: Source Subsystem
R&S ESPI Remote Control – Description of Commands SOURce Subsystem 6.18 SOURce Subsystem The SOURce subsystem controls the output signals of the instrument if the options tracking generator (B9) or External Generator Control (B10) are installed. The measurement window is selected by SOURce1 (screen A) and SOURce2 (screen B).
Page 589 R&S ESPI Remote Control – Description of Commands SOURce Subsystem SOURce<1|2>:FM:STATe ON | OFF This command switches on or off the external frequency modulation of the tracking generator in the selected measurement window. External I/Q modulation is switched off, if active. This command is only valid in conjunction with the tracking generator option B9.
Page 590 R&S ESPI Remote Control – Description of Commands SOURce Subsystem SOURce<1|2>:POWer[:LEVel][:IMMediate]:OFFSet -200dB to +200dB This command defines a level offset for the tracking generator level. Thus, for example, attenuators or amplifiers at the output of the tracking generator can be taken into account for the setting. This command is only valid in conjunction with the tracking generator option B9.
Page 591 R&S ESPI Remote Control – Description of Commands SOURce Subsystem 6.18.2 SOURce:EXTernal Subsystem The SOURce:EXTernal subsystem controls the operation of the unit with option Ext. Generator Control (R&S FSP-B10). The commands are only valid for the selected window, with SOURce1 changing the setting in screen A and SOURce2 the setting in screen B.
Page 592 R&S ESPI Remote Control – Description of Commands SOURce Subsystem Example: "SOUR:EXT:FREQ:NUM 4" "SOUR:EXT:FREQ:DEN 3" 'Sets a multiplication factor of 4/3, i.e. the transmit frequency of the generator is 4/ 3 times the analyzer frequency. Characteristics: *RST value: 1 SCPI: device-specific R, A Mode: SOURce<1|2>:EXTernal<1|2>:FREQuency:OFFSet <numeric_value>...
Page 593 R&S ESPI Remote Control – Description of Commands SOURce Subsystem R, A Mode: SOURce<1|2>:EXTernal<1|2>:ROSCillator[:SOURce] INTernal | EXTernal This command switches between external and internal reference oscillator for the frequency processing of external generator 1 and 2. The command always works on both generators. Therefore, the numeric suffix in EXTernal<1|2> is not significant.
Page 594: Status Subsystem
R&S ESPI Remote Control – Description of Commands STATus Subsystem 6.19 STATus Subsystem The STATus subsystem contains the commands for the status reporting system (see chapter “Remote Control – Basics”, section “Status Reporting System” on page 5.18). *RST does not influence the status registers.
Page 595 R&S ESPI Remote Control – Description of Commands STATus Subsystem STATus:OPERation:PTRansition 0 to 65535 This command sets the edge detectors of all bits of the STATus:OPERation register from 0 to 1 for the transitions of the CONDition bit. Example: "STAT:OPER:PTR 65535" Characteristics: *RST value: –...
Page 596 R&S ESPI Remote Control – Description of Commands STATus Subsystem STATus:QUEStionable:ACPLimit:NTRansition 0 to 65535 This command sets the edge detectors of all bits of the STATus:QUEStionable:ACPLimit register from 1 to 0 for the transitions of the CONDition bit. Example: "STAT:QUES:ACPL:NTR 65535" Characteristics: *RST value: –...
Page 597 R&S ESPI Remote Control – Description of Commands STATus Subsystem STATus:QUEStionable:FREQuency:CONDition? This command queries the contents of the CONDition section of the STATus:QUEStionable: FREQuency register. Readout does not delete the contents of the CONDition section. Example: "STAT:QUES:FREQ:COND?" Characteristics: *RST value: – SCPI: device-specific R, A Mode:...
Page 598 R&S ESPI Remote Control – Description of Commands STATus Subsystem STATus:QUEStionable:LIMit<1|2>:CONDition? This command queries the contents of the CONDition section of the STATus:QUEStionable:LIMit register. Readout does not delete the contents of the CONDition section. Example: "STAT:QUES:LIM:COND?" Characteristics: *RST value: – SCPI: device-specific Mode: R, A...
Page 599 R&S ESPI Remote Control – Description of Commands STATus Subsystem STATus:QUEStionable:LMARgin<1|2>:CONDition? This command queries the contents of the CONDition section of the STATus:QUEStionable:LMARgin register. Readout does not delete the contents of the CONDition section. Example: "STAT:QUES:LMAR:COND?" Characteristics: *RST value: – SCPI: device-specific R, A Mode:...
Page 600 R&S ESPI Remote Control – Description of Commands STATus Subsystem STATus:QUEStionable:NTRansition 0 to 65535 This command sets the edge detectors of all bits of the STATus:QUEStionable register from 1 to 0 for the transitions of the CONDition bit. Example: "STAT:QUES:NTR 65535" Characteristics: *RST value: –...
Page 601 R&S ESPI Remote Control – Description of Commands STATus Subsystem STATus:QUEStionable:POWer:PTRansition 0 to 65535 This command sets the edge detectors of all bits of the STATus:QUEStionable:POWer register from 0 to 1 for the transitions of the CONDition bit. Example: "STAT:QUES:POW:PTR 65535" Characteristics: *RST value: –...
Page 602 R&S ESPI Remote Control – Description of Commands STATus Subsystem STATus:QUEStionable:TRANsducer:NTRansition 0 to 65535 This command sets the edge detectors of all bits of the STATus:QUEStionable:TRANsducer register from 1 to 0 for the transitions of the CONDition bit. Example: "STAT:QUES:TRAN:NTR 65535" Characteristics: *RST value: –...
Page 603: System Subsystem
R&S ESPI Remote Control – Description of Commands SYSTem Subsystem 6.20 SYSTem Subsystem This subsystem contains a series of commands for general functions. SYSTem:COMMunicate:GPIB:RDEVice:COMMand 0...30,<’command string’> This command sends a command or query string to the external generator connected via the GPIB interface of the Ext.
Page 604 R&S ESPI Remote Control – Description of Commands SYSTem Subsystem SYSTem:COMMunicate:GPIB[:SELF]:ADDRess 0 to 30 This command changes the GPIB address of the unit. Example: "SYST:COMM:GPIB:ADDR 18" Characteristics: *RST value: - (no influence on this parameter, factory default 20) SCPI: conform R, A Mode: SYSTem:COMMunicate:GPIB[:SELF]:RTERminator LFEOI | EOI...
Page 605 R&S ESPI Remote Control – Description of Commands SYSTem Subsystem SYSTem:COMMunicate:PRINter:SELect <1|2> <printer_name> This command selects one of the printers configured under Windows NT including the associated output destination. The specified printer name must be a string as returned by the commands SYSTem:COMMunicate:PRINter:ENUMerate:FIRSt? or SYSTem:COMMunicate:PRINter:ENUMerate:NEXT? Command HCOPy:DESTination is used to select an output medium other than...
Page 606 R&S ESPI Remote Control – Description of Commands SYSTem Subsystem SYSTem:COMMunicate:RDEVice:GENerator<1|2>:TYPE <name> This command selects the type of external generator 1 or 2. For a list of the available generator types including the associated interface, see chapter “External Generator Control – Option R&S FSP-B10”, section “List of Generator Types Supported by the R&S ESPI”...
Page 607 R&S ESPI Remote Control – Description of Commands SYSTem Subsystem SYSTem:COMMunicate:SERial[:RECeive]:PACE XON | NONE This command switches on or off the software handshake for the serial interface. Example: "SYST:COMM:SER:PACE XON" Characteristics: *RST value: -- (no influence on this parameter, factory default NONE) SCPI: conform R, A Mode:...
Page 608 R&S ESPI Remote Control – Description of Commands SYSTem Subsystem SYSTem:DISPlay:FPANel ON | OFF This command activates or deactivates the display of the front panel keys on the screen. With the display activated, the instrument can be operated on the screen using the mouse by pressing the corresponding buttons.
Page 609: System:firmware:update
R&S ESPI Remote Control – Description of Commands SYSTem Subsystem SYSTem:ERRor:CLEar:ALL This command deletes all entries in the table SYSTEM MESSAGES. This command is an event and therefore has no query and no *RST value. Example: "SYST:ERR:CLE:ALL?" Characteristics: *RST value: – SCPI: device-specific R, A Mode:...
Page 610 R&S ESPI Remote Control – Description of Commands SYSTem Subsystem Example: "SYST:FIRM:UPD 'D:\USER\FWUPDATE'" 'Starts the firmware update from directory D:\USER\FWUPDATE using the files of the subfolders DISK1 to DISK<n>, including the contents of the EXTENSION subfolder. Characteristics: *RST value: – SCPI: device-specific R, A Mode:...
Page 611: System Language
R&S ESPI Remote Control – Description of Commands SYSTem Subsystem SYSTem:IFGain:MODE NORMal | PULSe This command switches the 10 dB overload reserve on or off. This command can only be selected in the HP emulation mode. NORM: switches the overload reserve off Parameter: PULSe: switches the overload reserve on Example:...
Page 612 R&S ESPI Remote Control – Description of Commands SYSTem Subsystem Notes regarding switch over to 8566A/B and 8568A/B: • Commands IP and KST, too, will perform the settings for the "# of Trace Points", "Start Freq.", "Stop Freq." and "Input Coupling". •...
Page 613 R&S ESPI Remote Control – Description of Commands SYSTem Subsystem SYSTem:PRESet This command initiates an instrument reset. The effect of this command corresponds to that of the PRESET key with manual operation or to the *RST command. Example: "SYST:PRES" Characteristics: *RST value: – SCPI: conform Mode: R, A...
Page 614: System:version
R&S ESPI Remote Control – Description of Commands SYSTem Subsystem SYSTem:SPEaker:VOLume 0 to 1 This command sets the volume of the built-in loudspeaker for demodulated signals. Minimum volume is set by 0 and maximum volume by 1. The value 0 is the lowest volume, the value 1 the highest volume. Example: "SYST:SPE:VOL 0.5"...
Page 615: Trace Subsystem
R&S ESPI Remote Control – Description of Commands TRACe Subsystem 6.21 TRACe Subsystem The TRACe subsystem controls access to the instrument's internal trace memory. 6.21.1 General Trace Commands TRACe<1|2>:COPY TRACE1| TRACE2| TRACE3 , TRACE1| TRACE2| TRACE3 This command copies data from one trace to another. The second operand describes the source, the first operand the destination of the data to be copied.
Page 616 R&S ESPI Remote Control – Description of Commands TRACe Subsystem Levelrel Reserved (0.0) Delta Delta of the peak power to the limit line in dB Limitcheck Limit check state (0 = PASSED, 1 = FAILED) Unused1 Reserved (0.0) Unused2 Reserved (0.0) These values are defined via the [SENSe<1|2>:]LIST:RANGe<1...20>...
Page 617 R&S ESPI Remote Control – Description of Commands TRACe Subsystem Binary format (FORMat REAL,32): If the transmission takes place using the binary format (REAL,32), the data are transferred in block format (Definite Length Block Data according to IEEE 488.2). They are arranged in succeeding lists of I and Q data of 32 Bit IEEE 754 floating point numbers.
Page 618 R&S ESPI Remote Control – Description of Commands TRACe Subsystem 6.21.2 Number and Format of the Measurement Values for the Different Operating Modes The number of measurement values depends on the instrument setting: Analyzer mode (span > 0 and zero span): 155 up to 30001 (default 625) results are output in the unit selected for display.
Page 619 R&S ESPI Remote Control – Description of Commands TRACe Subsystem – n*1 byte:status information per measurement result: bit 2: overrange trace1 to trace 3; STATus is only possible in form of a query during scan measurements. 1 byte status information per measurement result is transmitted: bit 2: overrange trace1 to trace 3;...
Page 620 R&S ESPI Remote Control – Description of Commands TRACe Subsystem 6.21.3 TRACe:IQ Subsystem The commands of this subsystem are used for collection and output of measured IQ data. A special memory is therefore available in the instrument with 128k words for the I and Q data. The measurement is always performed in the time domain (span = 0 Hz) at the selected center frequency.
Page 621 R&S ESPI Remote Control – Description of Commands TRACe Subsystem Fig. 6.2 shows the analyzer hardware from the IF section to the processor. The IF filter is the resolution filter of the R&S ESPI with bandwidths selectable from 300 kHz to 10 MHz. The A/D converter samples the IF signal (20.4 MHz) at a rate of 32 MHz.
Page 622 R&S ESPI Remote Control – Description of Commands TRACe Subsystem TRACe<1|2>:IQ:AVERage:COUNt 0 .. 32767 This command defines the number of I/Q data sets that are to serve as a basis for averaging. Example: TRAC:IQ ON 'Switches on acquisition of I/Q data. TRAC:IQ:SYNC ON 'Switches on synchronization of the aquision of I/Q measurement data with the trigger time.
Page 623 R&S ESPI Remote Control – Description of Commands TRACe Subsystem TRACe<1|2>:IQ:AVERage[:STATe] ON|OFF The command enables averaging of the recorded I/Q data provided that I/Q data acquisition was previously enabled with TRAC:IQ ON and the sampling rate was set to 32 MHz. Averaging is not supported at sampling rates <>...
Page 624 R&S ESPI Remote Control – Description of Commands TRACe Subsystem <offset samples>: Offset of the values to be output, referenced to the start of the Parameter: sampled data. Value range: 0 ... <# of samples> - 1, where <# of samples> is the value specified with the TRACe:IQ:SET command <# of samples>: Number of measurement values to be read.
Page 625 R&S ESPI Remote Control – Description of Commands TRACe Subsystem TRACe<1|2>:IQ:DATA? This command starts a measurement with the settings defined via TRACe:IQ:SET and returns the list of measurement results immediately after they are corrected in terms of frequency response. The number of measurement results depends on the settings defined with TRACe:IQ:SET, the output format depends on the settings of the FORMat –...
Page 626 R&S ESPI Remote Control – Description of Commands TRACe Subsystem – <Q-value y>: 4-Byte-Floating Point Q-value (max. 128k resp. 512k with option R&S FSP-B70 The number of I- and Q-data can be calculated as follows: # of I-data = # of Q-data = (# of DataBytes) / 8 The offset of Q-data in the output buffer can be calculated as follows: Q-data offset = (# of DataBytes) / 2 + LengthIndicatiorDigit with LengthIndicatorDigits being the number of digits of the length indicator including the '#'.
Page 627 R&S ESPI Remote Control – Description of Commands TRACe Subsystem IFPower and RFPower are available as of model 03 of the detector board assembly.RFPower requires the TV and RF Trigger option R&S FSP-B6. After selecting IFPower and RFPower, the trigger threshold can be set with com- mand TRIG:LEV:IFP or TRIG:LEV:RFP.
Page 628 R&S ESPI Remote Control – Description of Commands TRACe Subsystem TRACe<1|2>:IQ:SRATe 15.625 kHz to 32 MHz This command sets the sampling rate for the I/Q data acquisition. Thus the sample rate can be modified without affecting the other settings. 15.625 kHz, 31.25 kHz, 62.5 kHz, 125 kHz, 250 kHz, 500 kHz, 1 MHz, 2 MHz, Return value: 4 MHz, 8 MHz, 16 MHz, 32 MHz Example:...
Page 629 R&S ESPI Remote Control – Description of Commands TRACe Subsystem TRACe<1|2>:IQ:SYNChronize[:STATe] ON | OFF This command switches on or off the synchronization of the start of I/Q data acquisition to the trigger event. Prior to this command, I/Q data acquisition has to be switched. The synchronization is only active for sampling rate 32 MHz.
Page 630: Trigger Subsystem
R&S ESPI Remote Control – Description of Commands TRIGger Subsystem 6.22 TRIGger Subsystem The TRIGger subsystem is used to synchronize instrument actions with events. It is thus possible to con- trol and synchronize the start of a sweep. An external trigger signal can be applied to the connector at the rear panel of the instrument.
Page 631 R&S ESPI Remote Control – Description of Commands TRIGger Subsystem TRIGger<1|2>[:SEQuence]:LEVel:RFPower -50 to –10 dBm This command sets the level of the RF power trigger source. Example: "TRIG:LEV:RFP –20DBM" Characteristics: *RST value: -20 dBm SCPI: device-specific R, A Mode: This command is only available with option R&S FSP-B6 (TV and RF Trigger). TRIGger<1|2>[:SEQuence]:LEVel:VIDeo 0 to 100PCT This command sets the level of the video trigger source.
Page 632 R&S ESPI Remote Control – Description of Commands TRIGger Subsystem VIDeo The next measurement is triggered by the detection of a signal at the video filter output. IFPower The next measurement is triggered by the detection of a signal at the instrument IF (10 MHz bandwidth) RFPower The next measurement is triggered by the detection of a signal at...
Page 633 R&S ESPI Remote Control – Description of Commands TRIGger Subsystem TRIGger<1|2>[:SEQuence]:VIDeo:SSIGnal:POLarity NEGative | POSitive With active TV trigger this command selects the polarity of the video sync signal. Example: "TRIG:VID:SSIG:POL NEG" Characteristics: *RST value: SCPI: conform Mode: This command is only available with option R&S FSP-B6 (TV and RF Trigger). 6.258 Operating Manual 1164.6607.12 - 02 www.valuetronics.com...
Page 634: Unit Subsystem
R&S ESPI Remote Control – Description of Commands UNIT Subsystem 6.23 UNIT Subsystem The UNIT subsystem is used to switch the base unit of setting parameters. The numeric suffix at UNIT<1|2> selects the measurement window. UNIT<1|2>:POWer DBM | V | A | W | DB | PCT | UNITLESS | DBPW | WATT | DBUV | DBMV | VOLT | DBUA | AMPere | DBPT | DBUV_MHZ | DBMV_MHZ | DBUA_MHZ | DBUV_M | DBUA_M | DBUV_MMHZ | DBUA_MMHZ This command selects the unit for power for the selected measurement window.
Page 635 R&S ESPI Remote Control – Description of Commands GPIB Commands of HP Models 856xE, 8566A/B, 8568A/B and 8594E 6.24 GPIB Commands of HP Models 856xE, 8566A/B, 8568A/B and 8594E 6.24.1 Introduction The R&S FSP analyzer family supports a subset of the GPIB commands of HP models 8560E, 8561E, 8562E, 8563E, 8564E, 8565E, 8566A, 8566B, 8568A, 8568B and 8594E.
Page 636 R&S ESPI Remote Control – Description of Commands GPIB Commands of HP Models 856xE, 8566A/B, 8568A/B and 8594E Command Supported subset Function Corresponding Status HP-Models ADJALL ADJALL Adjust all HP 856xE / available in V3.2x and above HP 8566B / HP 8568B / HP 8594E ADJCRT...
Page 637 R&S ESPI Remote Control – Description of Commands GPIB Commands of HP Models 856xE, 8566A/B, 8568A/B and 8594E Command Supported subset Function Corresponding Status HP-Models Blank B HP 8566A/ available HP 8568A Trace B - HP 8566A/ available in V3.3x and above Display Line ->...
Page 638 R&S ESPI Remote Control – Description of Commands GPIB Commands of HP Models 856xE, 8566A/B, 8568A/B and 8594E Command Supported subset Function Corresponding Status HP-Models CONTS CONTS HP 856xE / available HP 8566B / HP 8568B / HP 8594E COUPLE COUPLE AC|DC Input coupling HP 856xE /...
Page 639 R&S ESPI Remote Control – Description of Commands GPIB Commands of HP Models 856xE, 8566A/B, 8568A/B and 8594E Command Supported subset Function Corresponding Status HP-Models DLE ON|OFF Display Line HP 856xE / available in V3.3x and above enable HP 8566B / HP 8568B / HP 8594E DONE...
Page 640 R&S ESPI Remote Control – Description of Commands GPIB Commands of HP Models 856xE, 8566A/B, 8568A/B and 8594E Command Supported subset Function Corresponding Status HP-Models FOFFSET FOFFSET <numeric_value> Frequency HP 856xE / available HZ|KHZ|MHZ|GHZ Offset HP 8566B / FOFFSET? HP 8568B / HP 8594E FREF FREF INT|EXT...
Page 641 R&S ESPI Remote Control – Description of Commands GPIB Commands of HP Models 856xE, 8566A/B, 8568A/B and 8594E Command Supported subset Function Corresponding Status HP-Models INZ 75 Input HP 856xE / available INZ 50 Impedance HP 8566B / INZ? HP 8568B / HP 8594E Instrument HP 8566A/...
Page 642 R&S ESPI Remote Control – Description of Commands GPIB Commands of HP Models 856xE, 8566A/B, 8568A/B and 8594E Command Supported subset Function Corresponding Status HP-Models KSP <numeric_value> HPIB address HP 8566A/ available HP 8568A Band lock off HP 8566A/ available in V3.2x and above HP 8568A Fast Preset HP 8566A/...
Page 643 R&S ESPI Remote Control – Description of Commands GPIB Commands of HP Models 856xE, 8566A/B, 8568A/B and 8594E Command Supported subset Function Corresponding Status HP-Models Signal ident on HP 8566A/ available in V3.2x and above HP 8568A Display line off HP 8566A/ available in V3.2x and above HP 8568A...
Page 644 R&S ESPI Remote Control – Description of Commands GPIB Commands of HP Models 856xE, 8566A/B, 8568A/B and 8594E Command Supported subset Function Corresponding Status HP-Models Marker Normal HP 8566A/ available M2 <numeric_value> HP 8568A HZ|KHZ|MHZ|GHZ M2 DN M2 UP Delta Marker HP 8566A/ available M3 <numeric_value>...
Page 645 R&S ESPI Remote Control – Description of Commands GPIB Commands of HP Models 856xE, 8566A/B, 8568A/B and 8594E Command Supported subset Function Corresponding Status HP-Models Delta Marker HP 856xE / available MKD <numeric_value> HZ|KHZ| HP 8566B / MHZ|GHZ HP 8568B / MKD DN HP 8594E MKD UP...
Page 646 R&S ESPI Remote Control – Description of Commands GPIB Commands of HP Models 856xE, 8566A/B, 8568A/B and 8594E Command Supported subset Function Corresponding Status HP-Models MKPK MKPK Marker Search HP 856xE / available MKPK HI HP 8566B / MKPK NH HP 8568B / MKPK NR HP 8594E...
Page 647 R&S ESPI Remote Control – Description of Commands GPIB Commands of HP Models 856xE, 8566A/B, 8568A/B and 8594E Command Supported subset Function Corresponding Status HP-Models Marker Track HP 8566A/ available HP 8568A MXMH MXMH TRA|TRB Maximum Hold HP 856xE / available HP 8566B / HP 8568B /...
Page 648 R&S ESPI Remote Control – Description of Commands GPIB Commands of HP Models 856xE, 8566A/B, 8568A/B and 8594E Command Supported subset Function Corresponding Status HP-Models PRINT PRINT Hardcopy HP 856xE / available PRINT 1|0 HP 8566B / HP 8568B / HP 8594E PSDAC PSDAC <numeric_value>...
Page 649 R&S ESPI Remote Control – Description of Commands GPIB Commands of HP Models 856xE, 8566A/B, 8568A/B and 8594E Command Supported subset Function Corresponding Status HP-Models RL <numeric_value> DB|DM Reference HP 856xE / available RL DN Level HP 8566B / RL UP HP 8568B / HP 8594E RLCAL...
Page 650 R&S ESPI Remote Control – Description of Commands GPIB Commands of HP Models 856xE, 8566A/B, 8568A/B and 8594E Command Supported subset Function Corresponding Status HP-Models SNGLS SNGLS Single Sweep HP 856xE / available HP 8566B / HP 8568B / HP 8594E SQUELCH SQUELCH <numeric_value>...
Page 651 R&S ESPI Remote Control – Description of Commands GPIB Commands of HP Models 856xE, 8566A/B, 8568A/B and 8594E Command Supported subset Function Corresponding Status HP-Models Subtract HP 8566B / available in V4.1x and above HP 8568B / HP 8594E sum of trace HP 8566B / available in V4.3x and above amplitudes...
Page 652 R&S ESPI Remote Control – Description of Commands GPIB Commands of HP Models 856xE, 8566A/B, 8568A/B and 8594E Command Supported subset Function Corresponding Status HP-Models TDF P Trace Data HP 856xE / available TDF M Format HP 8566B / TDF B HP 8568B / TDF A HP 8594E...
Page 653: Special Features Of The Syntax Parsing Algorithms For 8566A And 8568A Models
R&S ESPI Remote Control – Description of Commands GPIB Commands of HP Models 856xE, 8566A/B, 8568A/B and 8594E Command Supported subset Function Corresponding Status HP-Models VB <numeric_value> Video HP 856xE / available HZ|KHZ|MHZ|GHZ Bandwidth HP 8566B / VB DN HP 8568B / VB UP HP 8594E VB AUTO...
Page 654: 856X: Emulation Of The Spurious Response Measurement Utility
R&S ESPI Remote Control – Description of Commands GPIB Commands of HP Models 856xE, 8566A/B, 8568A/B and 8594E 6.24.4 856x: Emulation of the Spurious Response Measurement Utility 85672A 6.24.4.1 General commands for Spurious Command Supported subset Function Corresponding Status HP-Models SP_OK A value of 1 denotes a HP 856xE...
Page 655 R&S ESPI Remote Control – Description of Commands GPIB Commands of HP Models 856xE, 8566A/B, 8568A/B and 8594E 6.24.4.3 Commands for Harmonic Distortion Command Supported subset Function Corresponding Status HP-Models SP_HARM Executes harmonis distortion HP 856xE available in V4.1x and measurement above SP_H_MAX...
Page 656 R&S ESPI Remote Control – Description of Commands GPIB Commands of HP Models 856xE, 8566A/B, 8568A/B and 8594E 6.24.4.4 Commands for Spurious Command Supported subset Function Corresponding Status HP-Models SP_TIME Calculates an estimated time for HP 856xE available in V4.1x and the spurious search above SP_GEN...
Page 657: Special Behavior Of Commands
R&S ESPI Remote Control – Description of Commands GPIB Commands of HP Models 856xE, 8566A/B, 8568A/B and 8594E 6.24.5 Special Behavior of Commands Command Known Differences ABORT Does not automatically set the command complete bit (bit 4) in the status byte. An additional DONE is required for that purpose.
Page 658 R&S ESPI Remote Control – Description of Commands GPIB Commands of HP Models 856xE, 8566A/B, 8568A/B and 8594E Command Known Differences Supported bits: 1 (Units key pressed) 2 (End of Sweep) 3 (Device error) 4 (Command complete) 5 (Illegal command) SRCNORM SRCPWR Default value, range, step size...
Page 659: Model-Dependent Default Settings
R&S ESPI Remote Control – Description of Commands GPIB Commands of HP Models 856xE, 8566A/B, 8568A/B and 8594E 6.24.6 Model-Dependent Default Settings If the GPIB language is switched over to an 85xx model, the GPIB address will automatically be switched over to 18 provided that the default address of the R&S ESPI (20) is still set.
Page 660: Trace Data Output Formats
R&S ESPI Remote Control – Description of Commands GPIB Commands of HP Models 856xE, 8566A/B, 8568A/B and 8594E 6.24.8 Trace Data Output Formats All formats are supported for trace data output: display units (command O1), display units in two byte binary data (command O2 or TDF B and MDS W), display units in one byte binary data (command O4 or TDF B and MDS B) and physical values (commands O3 or TDF P).
Page 661: Differences In Gpib Behavior Between The Fsp And The Fse Families Of Instruments
R&S ESPI Remote Control – Description of Commands Differences in GPIB Behavior between the FSP and the FSE Families of Instruments 6.25 Differences in GPIB Behavior between the FSP and the FSE Families of Instruments The following list of commands contains the differences in syntax and behavior between the GPIB command set of the FSP and the FSE families of instruments.
Page 662 R&S ESPI Remote Control – Description of Commands Differences in GPIB Behavior between the FSP and the FSE Families of Instruments Devices Command (Sheet 2 of 47) Parameter Notes R&S *TRG R&S ESPI starts ESPI measurement in active screen FSE: starts measurement in both screens (split screen mode)
Page 663 R&S ESPI Remote Control – Description of Commands Differences in GPIB Behavior between the FSP and the FSE Families of Instruments Devices Command (Sheet 3 of 47) Parameter Notes R&S CALCulate<1|2>:DELTamarker<1...4>:FUNCtion: <numeric_value> R&S ESPI: marker 1 can ESPI FIXed:RPOint:X be moved independently from the reference point FSE: the marker and the reference point are...
Page 664 R&S ESPI Remote Control – Description of Commands Differences in GPIB Behavior between the FSP and the FSE Families of Instruments Devices Command (Sheet 4 of 47) Parameter Notes R&S CALCulate<1|2>:DELTamarker<1...4>:TRACe 1 to 3 R&S ESPI: 3 traces are ESPI available per screen;...
Page 665 R&S ESPI Remote Control – Description of Commands Differences in GPIB Behavior between the FSP and the FSE Families of Instruments Devices Command (Sheet 5 of 47) Parameter Notes R&S CALCulate<1|2>:LIMit<1...8>:ACPower: -200 to 200 DBM, new function for ESPI ACHannel:ABSolute -200 to 200 DBM R&S ESPI R&S...
Page 666 R&S ESPI Remote Control – Description of Commands Differences in GPIB Behavior between the FSP and the FSE Families of Instruments Devices Command (Sheet 6 of 47) Parameter Notes CALCulate<1|2>:LIMit<1...8>:BURSt:POWer? not available for R&S ESPI, FSET and ESIB CALCulate<1|2>:LIMit<1...8>:BURSt:PTEMplate? not available for R&S ESPI, FSET and ESIB CALCulate:LIMit:CATalog?
Page 667 R&S ESPI Remote Control – Description of Commands Differences in GPIB Behavior between the FSP and the FSE Families of Instruments Devices Command (Sheet 7 of 47) Parameter Notes R&S CALCulate<1|2>:LIMit<1...8>:LOWer[:DATA] <numeric value> ESPI CALCulate<1|2>:LIMit<1...8>:MARGin 0 to 100DB not available for R&S ESPI, FSET and ESIB R&S...
Page 668 R&S ESPI Remote Control – Description of Commands Differences in GPIB Behavior between the FSP and the FSE Families of Instruments Devices Command (Sheet 8 of 47) Parameter Notes FSET/ CALCulate<1|2>:LIMit<1...8>:UNIT DBM | DBPW | WATT | only the following units ESIB DBUV | DBMV | VOLT | are available for the...
Page 669 R&S ESPI Remote Control – Description of Commands Differences in GPIB Behavior between the FSP and the FSE Families of Instruments Devices Command (Sheet 9 of 47) Parameter Notes CALCulate<1|2>:MARKer<1...4>:FUNCtion: not available for ADEMod:SINad:RESult? R&S ESPI and FSET CALCulate<1|2>:MARKer<1...4>:FUNCtion: ON | OFF not available for ADEMod:SINad[:STATe] R&S ESPI and FSET...
Page 670 R&S ESPI Remote Control – Description of Commands Differences in GPIB Behavior between the FSP and the FSE Families of Instruments Devices Command (Sheet 10 of 47) Parameter Notes R&S CALCulate<1|2>:MARKer<1...4>:FUNCtion: ESPI NDBDown:RESult? R&S CALCulate<1|2>:MARKer<1...4>:FUNCtion: ON | OFF ESPI NDBDown:STATe R&S CALCulate<1|2>:MARKer<1...4>:FUNCtion: ESPI...
Page 671 R&S ESPI Remote Control – Description of Commands Differences in GPIB Behavior between the FSP and the FSE Families of Instruments Devices Command (Sheet 11 of 47) Parameter Notes R&S CALCulate<1|2>:MARKer<1...4>:FUNCtion: -330 to +30 dBm new function for ESPI STRack:THReshold R&S ESPI R&S CALCulate<1|2>:MARKer<1...4>:FUNCtion:...
Page 672 R&S ESPI Remote Control – Description of Commands Differences in GPIB Behavior between the FSP and the FSE Families of Instruments Devices Command (Sheet 12 of 47) Parameter Notes R&S CALCulate<1|2>:MARKer<1...4>:FUNCtion: ESPI SUMMary:PPEak: AVERage:RESult? R&S CALCulate<1|2>:MARKer<1...4>:FUNCtion: ESPI SUMMary:PPEak:PHOLd:RESult? R&S CALCulate<1|2>:MARKer<1...4>:FUNCtion: ESPI SUMMary:PPEak:RESult? R&S...
Page 673 R&S ESPI Remote Control – Description of Commands Differences in GPIB Behavior between the FSP and the FSE Families of Instruments Devices Command (Sheet 13 of 47) Parameter Notes R&S CALCulate<1|2>:MARKer<1...4>:MAXimum: ESPI RIGHt R&S CALCulate<1|2>:MARKer<1...4>:MAXimum[: ESPI PEAK] R&S CALCulate<1|2>:MARKer<1...4>:MINimum:LEFT ESPI R&S CALCulate<1|2>:MARKer<1...4>:MINimum:NEXT ESPI...
Page 674 R&S ESPI Remote Control – Description of Commands Differences in GPIB Behavior between the FSP and the FSE Families of Instruments Devices Command (Sheet 14 of 47) Parameter Notes R&S CALCulate<1|2>:MATH:MODE LINear | LOGarithmic affects all traces on the ESPI R&S ESPI;...
Page 675 R&S ESPI Remote Control – Description of Commands Differences in GPIB Behavior between the FSP and the FSE Families of Instruments Devices Command (Sheet 15 of 47) Parameter Notes FSET/ CALCulate<1|2>:UNIT:POWer DBM | V | W | DB | PCT the R&S ESPI supports ESIB | UNITLESS | DBPW |...
Page 676 R&S ESPI Remote Control – Description of Commands Differences in GPIB Behavior between the FSP and the FSE Families of Instruments Devices Command (Sheet 16 of 47) Parameter Notes CONFigure:BURSt:POWer:COUNt 1 to 1000 not available for R&S ESPI and FSET CONFigure:BURSt:POWer[IMMediate] not available for R&S ESPI and FSET...
Page 677 R&S ESPI Remote Control – Description of Commands Differences in GPIB Behavior between the FSP and the FSE Families of Instruments Devices Command (Sheet 17 of 47) Parameter Notes CONFigure[:BTS]:CHANnel:SLOT 0 to 7 not available for R&S ESPI and FSET CONFigure[:BTS]:CHANnel:SLOT:AUTO ONCE not available for...
Page 678 R&S ESPI Remote Control – Description of Commands Differences in GPIB Behavior between the FSP and the FSE Families of Instruments Devices Command (Sheet 18 of 47) Parameter Notes CONFigure[:BTS]MEASurement? not available for R&S ESPI and FSET CONFigure[:MS]:ARFCn <numeric_value> not available for R&S ESPI and FSET CONFigure[:MS]:ARFCn:AUTO ONCE...
Page 679 R&S ESPI Remote Control – Description of Commands Differences in GPIB Behavior between the FSP and the FSE Families of Instruments Devices Command (Sheet 19 of 47) Parameter Notes CONFigure[:MS]MEASurement? not available for R&S ESPI and FSET FSET DIAGnostic:INFO:CCOunt:ATTenuation? not available for R&S ESPI DIAGnostic:INFO:CCOunt:ATTenuation<1 | 10>? not available for...
Page 680 R&S ESPI Remote Control – Description of Commands Differences in GPIB Behavior between the FSP and the FSE Families of Instruments Devices Command (Sheet 20 of 47) Parameter Notes R&S DISPlay:CMAP<1...26>:HSL 0 to 1,0 to 1,0 to 1 larger selection of ESPI independently configurable items (1 to...
Page 681 R&S ESPI Remote Control – Description of Commands Differences in GPIB Behavior between the FSP and the FSE Families of Instruments Devices Command (Sheet 21 of 47) Parameter Notes DISPlay[:WINDow<1|2>]:TRACe<1...4>:X: LINear | LOGarithmic not available for SPACing R&S ESPI DISPlay[:WINDow<1|2>]:TRACe<1...4>:X[: <numeric_value>...
Page 682 R&S ESPI Remote Control – Description of Commands Differences in GPIB Behavior between the FSP and the FSE Families of Instruments Devices Command (Sheet 22 of 47) Parameter Notes R&S DISPlay[:WINDow<1|2>]:TRACe<1...3>[:STATe] ON | OFF R&S ESPI: ESPI TRACe<1...3> FSE: TRACE<1...4> FETCh:BURSt:FERRor:AVERage? not available for R&S ESPI and FSET...
Page 683 R&S ESPI Remote Control – Description of Commands Differences in GPIB Behavior between the FSP and the FSE Families of Instruments Devices Command (Sheet 23 of 47) Parameter Notes FORMat[:DATA] ASCii | REAL | UINT UINT is not available for [,32] R&S ESPI R&S...
Page 684 R&S ESPI Remote Control – Description of Commands Differences in GPIB Behavior between the FSP and the FSE Families of Instruments Devices Command (Sheet 24 of 47) Parameter Notes HCOPy:ITEM:WINDow<1|2>:TRACe: ON | OFF not available for CAINcrement R&S ESPI R&S HCOPy:ITEM:WINDow<1|2>:TRACe:STATe ON | OFF ESPI...
Page 685 R&S ESPI Remote Control – Description of Commands Differences in GPIB Behavior between the FSP and the FSE Families of Instruments Devices Command (Sheet 25 of 47) Parameter Notes R&S INPut<1|2>:ATTenuation:AUTO:MODE NORMal | LNOise | not available for models ESPI LDIStorsion 3 and 7;...
Page 686 R&S ESPI Remote Control – Description of Commands Differences in GPIB Behavior between the FSP and the FSE Families of Instruments Devices Command (Sheet 26 of 47) Parameter Notes FSET INPut<1|2>:PRESelection:COUPling:LOW: 10Hz to 5MHz not available for FREQuency R&S ESPI FSET INPut<1|2>:PRESelection:COUPling:LOW:SET 'name of preselector set...
Page 687 R&S ESPI Remote Control – Description of Commands Differences in GPIB Behavior between the FSP and the FSE Families of Instruments Devices Command (Sheet 27 of 47) Parameter Notes FSE/ INSTrument<1|2>[:SELect] SANalyzer | DDEMod | 5 parameters are FSIQ ADEMod | BGSM | available.
Page 688 R&S ESPI Remote Control – Description of Commands Differences in GPIB Behavior between the FSP and the FSE Families of Instruments Devices Command (Sheet 28 of 47) Parameter Notes MMEMory:SELect[:ITEM]:GSETup ON | OFF not available for R&S ESPI (default setting on the R&S ESPI) MMEMory:SELect[:ITEM]:HCOPy ON | OFF...
Page 689 R&S ESPI Remote Control – Description of Commands Differences in GPIB Behavior between the FSP and the FSE Families of Instruments Devices Command (Sheet 29 of 47) Parameter Notes READ:BURSt:FERRor:STATus? not available for R&S ESPI and FSET READ:BURSt:PERRor:PEAK:AVERage? not available for R&S ESPI and FSET READ:BURSt:PERRor:PEAK:MAXimum? not available for...
Page 690 R&S ESPI Remote Control – Description of Commands Differences in GPIB Behavior between the FSP and the FSE Families of Instruments Devices Command (Sheet 30 of 47) Parameter Notes R&S [SENSe<1|2>:]AVERage:COUNt 0 to 32767 ESPI [SENSe<1|2>:]AVERage:COUNt 0 to 32767 R&S [SENSe<1|2>:]AVERage:TYPE VIDeo | LINear command is used to...
Page 691 R&S ESPI Remote Control – Description of Commands Differences in GPIB Behavior between the FSP and the FSE Families of Instruments Devices Command (Sheet 31 of 47) Parameter Notes R&S [SENSe<1|2>:]BANDwidth|BWIDth[:RESolution]: ON | OFF old command that is still ESPI MODE:FFT supported, but has been replaced on the...
Page 692 R&S ESPI Remote Control – Description of Commands Differences in GPIB Behavior between the FSP and the FSE Families of Instruments Devices Command (Sheet 32 of 47) Parameter Notes R&S [SENSe<1|2>:]CORRection:TRANsducer:ACTive? ESPI R&S [SENSe<1|2>:]CORRection:TRANsducer: ESPI CATalog? R&S [SENSe<1|2>:]CORRection:TRANsducer: <string> ESPI COMMent R&S [SENSe<1|2>:]CORRection:TRANsducer:DATA...
Page 693 R&S ESPI Remote Control – Description of Commands Differences in GPIB Behavior between the FSP and the FSE Families of Instruments Devices Command (Sheet 33 of 47) Parameter Notes [SENSe<1|2>:]DDEMod:FILTer:REFerence RCOSine | RRCosine | not available for GAUSsian | B22 | B25 | R&S ESPI B44 | QFM | QFR | QRM | QRR | A25Fm | EMES |...
Page 694 R&S ESPI Remote Control – Description of Commands Differences in GPIB Behavior between the FSP and the FSE Families of Instruments Devices Command (Sheet 34 of 47) Parameter Notes [SENSe<1|2>:]DDEMod:PSK:NSTate 2 | 8 not available for R&S ESPI [SENSe<1|2>:]DDEMod:QAM:NSTate not available for R&S ESPI [SENSe<1|2>:]DDEMod:QPSK:FORMat NORMal | DIFFerential |...
Page 695 R&S ESPI Remote Control – Description of Commands Differences in GPIB Behavior between the FSP and the FSE Families of Instruments Devices Command (Sheet 35 of 47) Parameter Notes R&S [SENSe<1|2>:]DETector<1...3>[:FUNCtion] APEak |NEGative | R&S ESPI: number of ESPI POSitive | SAMPle | traces restricted to 3;...
Page 696 R&S ESPI Remote Control – Description of Commands Differences in GPIB Behavior between the FSP and the FSE Families of Instruments Devices Command (Sheet 36 of 47) Parameter Notes R&S [SENSe<1|2>:]FREQuency:CENTer 0 to f frequency ranges are ESPI different for R&S ESPI and FSE [SENSe<1|2>:]FREQuency:CENTer:LINK STARt | STOP | SPAN...
Page 697 R&S ESPI Remote Control – Description of Commands Differences in GPIB Behavior between the FSP and the FSE Families of Instruments Devices Command (Sheet 37 of 47) Parameter Notes R&S [SENSe<1|2>:]LIST:POWer[:SEQuence] <analyzer freq>, new function for ESPI <ref level>, R&S ESPI <rf att>, <el att>, <filter type>,...
Page 698 R&S ESPI Remote Control – Description of Commands Differences in GPIB Behavior between the FSP and the FSE Families of Instruments Devices Command (Sheet 38 of 47) Parameter Notes R&S [SENSe<1|2>:]MPOWer[:SEQuence] <analyzer freq>, new function for ESPI <rbw>, R&S ESPI <meas time>, <trigger source>, <trigger level>,...
Page 699 R&S ESPI Remote Control – Description of Commands Differences in GPIB Behavior between the FSP and the FSE Families of Instruments Devices Command (Sheet 39 of 47) Parameter Notes R&S [SENSe<1|2>:]POWer:ACHannel:REFerence: ONCE ESPI AUTO R&S [SENSe<1|2>:]POWer:ACHannel:SPACing[: 100Hz to 2000MHz different parameter ESPI ACHannel] range...
Page 700 R&S ESPI Remote Control – Description of Commands Differences in GPIB Behavior between the FSP and the FSE Families of Instruments Devices Command (Sheet 40 of 47) Parameter Notes ESIB [SENSe<1|2>:]SCAN<1...10>:INPut:GAIN[: ON | OFF not available for STATE] R&S ESPI ESIB [SENSe<1|2>:]SCAN<1...10>:INPut:TYPE INPUT1 | INPUT2...
Page 701 R&S ESPI Remote Control – Description of Commands Differences in GPIB Behavior between the FSP and the FSE Families of Instruments Devices Command (Sheet 41 of 47) Parameter Notes R&S [SENSe<1|2>:]SWEep:TIME 2.5ms to 1000s | 1µs to different parameter ESPI 16000s ranges for R&S ESPI and FSE...
Page 702 R&S ESPI Remote Control – Description of Commands Differences in GPIB Behavior between the FSP and the FSE Families of Instruments Devices Command (Sheet 42 of 47) Parameter Notes R&S STATus:OPERation:PTRansition 0 to 65535 ESPI R&S STATus:OPERation[:EVENt?] ESPI R&S STATus:PRESet ESPI R&S STATus:QUEStionable:ACPLimit:CONDition?
Page 703 R&S ESPI Remote Control – Description of Commands Differences in GPIB Behavior between the FSP and the FSE Families of Instruments Devices Command (Sheet 43 of 47) Parameter Notes R&S STATus:QUEStionable:LMARgin<1|2>:ENABle 0 to 65535 R&S ESPI: individual ESPI registers for screen A and B R&S STATus:QUEStionable:LMARgin<1|2>:...
Page 704 R&S ESPI Remote Control – Description of Commands Differences in GPIB Behavior between the FSP and the FSE Families of Instruments Devices Command (Sheet 44 of 47) Parameter Notes R&S STATus:QUEue[:NEXT?] ESPI SYSTem:BINFo? not available for R&S ESPI R&S SYSTem:COMMunicate:GPIB:RDEVice: 0 to 30 new command for ESPI...
Page 705 R&S ESPI Remote Control – Description of Commands Differences in GPIB Behavior between the FSP and the FSE Families of Instruments Devices Command (Sheet 45 of 47) Parameter Notes R&S SYSTem:ERRor[:NEXT]? new function for ESPI R&S ESPI, but compatible to SYSTem: ERRor? on the FSE R&S SYSTem:ERRor:LIST?
Page 706 R&S ESPI Remote Control – Description of Commands Differences in GPIB Behavior between the FSP and the FSE Families of Instruments Devices Command (Sheet 46 of 47) Parameter Notes R&S TRACe:IQ:SET <filter type>, new function for ESPI <rbw>, R&S ESPI <sample rate>, <trigger source>, <trigger slope>,...
Page 707 R&S ESPI Remote Control – Description of Commands Differences in GPIB Behavior between the FSP and the FSE Families of Instruments Devices Command (Sheet 47 of 47) Parameter Notes FSE/ TRIGger<1|2>[:SEQuence]:SYNChronize:ADJust: 0 to 100s not available for ESIB FRAMe R&S ESPI TRIGger<1|2>[:SEQuence]:SYNChronize:ADJust: ONCE not available for...
Page 708: Alphabetical List Of Remote Commands
R&S ESPI Remote Control – Description of Commands Alphabetical List of Remote Commands 6.26 Alphabetical List of Remote Commands Command Parameter Page 6.91 *CAL? *CLS *ESE 0 to 255 *ESR? *IDN? *IST? *OPC *OPC? *OPT? *PRE 0 to 255 6.10 *PSC 0 | 1 6.10 *RST...
Page 709 R&S ESPI Remote Control – Description of Commands Alphabetical List of Remote Commands Command Parameter Page CALCulate<1|2>:LIMit<1...8>:ACPower:ACHannel[:RELative] 0 to 100dB, 0 to 100dB 6.30 CALCulate<1|2>:LIMit<1...8>:ACPower:ACHannel[:RELative]:STATe ON | OFF 6.31 CALCulate<1|2>:LIMit<1...8>:ACPower:ACHannel:RESult? 6.31 CALCulate<1|2>:LIMit<1...8>:ACPower:ALTernate<1...11>:ABSolute -200DBM to 200DBM, -200DBM to 6.32 200DBM CALCulate<1|2>:LIMit<1...8>:ACPower:ALTernate<1...11>:ABSolute: ON | OFF 6.33 STATe...
Page 710 R&S ESPI Remote Control – Description of Commands Alphabetical List of Remote Commands Command Parameter Page CALCulate<1|2>:MARKer<1...4>:FUNCtion:DEModulation:HOLDoff 10ms to 1000s 6.54 CALCulate<1|2>:MARKer<1...4>:FUNCtion:DEModulation:SELect AM | FM 6.55 CALCulate<1|2>:MARKer<1...4>:FUNCtion:DEModulation:SQUelch: 0 to 100 PCT 6.55 LEVel CALCulate<1|2>:MARKer<1...4>:FUNCtion:DEModulation:SQUelch[: ON | OFF 6.55 STATe] CALCulate<1|2>:MARKer<1...4>:FUNCtion:DEModulation[:STATe] ON | OFF 6.55 CALCulate<1|2>:MARKer<1...4>:FUNCtion:FPEaks:COUNt?
Page 711 R&S ESPI Remote Control – Description of Commands Alphabetical List of Remote Commands Command Parameter Page CALCulate<1|2>:MARKer<1...4>:FUNCtion:SUMMary:AOFF 6.79 CALCulate<1|2>:MARKer<1...4>:FUNCtion:SUMMary:AVERage ON | OFF 6.79 CALCulate<1|2>:MARKer<1...4>:FUNCtion:SUMMary:MEAN:AVERage: 6.79 RESult? CALCulate<1|2>:MARKer<1...4>:FUNCtion:SUMMary:MEAN:PHOLd: 6.80 RESult? CALCulate<1|2>:MARKer<1...4>:FUNCtion:SUMMary:MEAN:RESult? 6.81 CALCulate<1|2>:MARKer<1...4>:FUNCtion:SUMMary:MEAN[:STATe] ON | OFF 6.81 CALCulate<1|2>:MARKer<1...4>:FUNCtion:SUMMary:MODE ABSolute | RELative 6.81 CALCulate<1|2>:MARKer<1...4>:FUNCtion:SUMMary:PHOLd ON | OFF...
Page 712 R&S ESPI Remote Control – Description of Commands Alphabetical List of Remote Commands Command Parameter Page CALCulate<1|2>:MARKer<1...4>:Y? 6.53 CALCulate<1|2>:MATH[:EXPression][:DEFine] (<expr>) 6.89 CALCulate<1|2>:MATH:MODE LINear | LOGarithmic | POWer 6.89 CALCulate<1|2>:MATH:POSition -100PCT to 200PCT 6.89 CALCulate<1|2>:MATH:STATe ON | OFF 6.90 CALCulate<1|2>:PEAKsearch|PSEarch:ADD <nummeric value> 6.91 CALCulate<1|2>:PEAKsearch|PSEarch:AUTO ON | OFF...
Page 713 R&S ESPI Remote Control – Description of Commands Alphabetical List of Remote Commands Command Parameter Page DISPlay:CMAP<1...34>:PDEFined BLACk | BLUE | BROWn | GREen | CYAN 6.107 | RED | MAGenta | YELLow | WHITe | DGRAy | LGRAy | LBLUe | LGREen | LCYan | LRED | LMAGenta DISPlay:FORMat SINGle | SPLit...
Page 714 R&S ESPI Remote Control – Description of Commands Alphabetical List of Remote Commands Command Parameter Page INPut<1|2>:ATTenuation 0 to 70 dB 6.126 INPut<1|2>:ATTenuation:AUTO ON | OFF 6.126 INPut<1|2>:ATTenuation:AUTO:MODE LNO 6.126 INPut<1|2>:ATTenuation:PROTection[:STATe] ON | OFF 6.126 INPut<1|2>:GAIN:AUTO ON | OFF 6.127 INPut<1|2>:GAIN:STATe ON | OFF 6.127...
Page 715 R&S ESPI Remote Control – Description of Commands Alphabetical List of Remote Commands Command Parameter Page [SENSe<1|2>:]AVERage:COUNt 0 to 32767 6.147 [SENSe<1|2>:]AVERage[:STATe<1...3>] ON | OFF 6.147 [SENSe<1|2>:]AVERage:TYPE VIDeo | LINear 6.148 [SENSe<1|2>:]BANDwidth|BWIDth:FFT WIDE | AUTO | NARROW 6.149 [SENSe<1|2>:]BANDwidth|BWIDth[:RESolution] 10 Hz to 10 MHz 6.149 [SENSe<1|2>:]BANDwidth|BWIDth[:RESolution]:AUTO ON | OFF...
Page 716 R&S ESPI Remote Control – Description of Commands Alphabetical List of Remote Commands Command Parameter Page [SENSe<1|2>:]ESPectrum:RANGe<1...20>:FILTer:TYPE NORMal | CFILter | RRC | PULSe 6.165 [SENSe<1|2>:]ESPectrum:RANGe<1...20>[:FREQuency]:STARt <numeric_value> 6.165 [SENSe<1|2>:]ESPectrum:RANGe<1...20>[:FREQuency]:STOP <numeric_value> 6.166 [SENSe<1|2>:]ESPectrum:RANGe<1...20>:INPut:ATTenuation <numeric_value> 6.166 [SENSe<1|2>:]ESPectrum:RANGe<1...20>:INPut:ATTenuation:AUTO ON | OFF 6.166 [SENSe<1|2>:]ESPectrum:RANGe<1...20>:INPut:GAIN:STATe ON | OFF 6.166 [SENSe<1|2>:]ESPectrum:RANGe<1...20>:RLEVel...
Page 717 R&S ESPI Remote Control – Description of Commands Alphabetical List of Remote Commands Command Parameter Page [SENSe<1|2>:]LIST:RANGe<1...20>[:FREQuency]:STARt <numeric_value> 6.183 [SENSe<1|2>:]LIST:RANGe<1...20>[:FREQuency]:STOP <numeric_value> 6.183 [SENSe<1|2>:]LIST:RANGe<1...20>:INPut:ATTenuation <numeric_value> 6.183 [SENSe<1|2>:]LIST:RANGe<1...20>:INPut:ATTenuation:AUTO ON | OFF 6.183 [SENSe<1|2>:]LIST:RANGe<1...20>:INPut:GAIN:STATe ON | OFF 6.184 [SENSe<1|2>:]LIST:RANGe<1...20>:LIMit -200dB to +200dB 6.184 [SENSe<1|2>:]LIST:RANGe<1...20>:LIMit:STATe ON | OFF 6.184...
Page 718 R&S ESPI Remote Control – Description of Commands Alphabetical List of Remote Commands Command Parameter Page [SENSe<1|2>:]SCAN<1...10>:INPut:GAIN:AUTO ON | OFF 6.204 [SENSe<1|2>:]SCAN<1...10>:INPut:GAIN[:STATE] ON | OFF 6.204 [SENSe<1|2>:]SCAN<1...10>:RANGes[:COUNt] 1 to 10 6.204 [SENSe<1|2>:]SCAN<1...10>:STARt fmin to fmax 6.204 [SENSe<1|2>:]SCAN<1...10>:STEP fmin to fmax 6.205 [SENSe<1|2>:]SCAN<1...10>:STOP fmin to fmax...
Page 719 R&S ESPI Remote Control – Description of Commands Alphabetical List of Remote Commands Command Parameter Page STATus:QUEStionable:ACPLimit:PTRansition 0 to 65535 6.221 STATus:QUEStionable:CONDition? 6.221 STATus:QUEStionable:ENABle 0 to 65535 6.221 STATus:QUEStionable[:EVENt]? 6.221 STATus:QUEStionable:FREQuency:CONDition? 6.222 STATus:QUEStionable:FREQuency:ENABle 0 to 65535 6.222 STATus:QUEStionable:FREQuency[:EVENt]? 6.222 STATus:QUEStionable:FREQuency:NTRansition 0 to 65535 6.222 STATus:QUEStionable:FREQuency:PTRansition...
Page 720 R&S ESPI Remote Control – Description of Commands Alphabetical List of Remote Commands Command Parameter Page SYSTem:HPCoupling FSP | HP 6.235 SYSTem:IDENtify:FACTory 6.235 SYSTem:IFGain:MODE NORMal | PULSe 6.236 SYSTem:KLOCk ON | OFF 6.236 SYSTem:LANGuage <language> 6.236 SYSTem:MSIZe? MBOard 6.237 SYSTem:PASSword[:CENable] 'password' 6.237 SYSTem:PRESet...
Page 721 R&S ESPI Remote Control – Description of Commands Alphabetical List of Remote Commands 6.346 Operating Manual 1164.6607.12 - 02 www.valuetronics.com...
Page 722 R&S ESPI Remote Control – Programming Examples 7 Remote Control – Programming Examples 7.1 Introduction ..........7.2 7.2 Basic Programming Steps for the VISA Interface .
Page 723: Introduction
R&S ESPI Remote Control – Programming Examples Introduction 7.1 Introduction The following programming examples have a hierarchical structure, i.e. subsequent examples are based on previous ones. It is thus possible to compile very easily an operational program from the modules of the given examples. VISUAL BASIC has been used as programming language.
Page 724 R&S ESPI Remote Control – Programming Examples Basic Programming Steps for the VISA Interface 7.2.1.1 Initiate Service Request REM ---- Example of initialization of the SRQ in the case of errors -------- PUBLIC SUB SetupSRQ() status = viWrite(analyzer, "*CLS", 4, retCnt) ’Reset status reporting system status = viWrite(analyzer, "*SRE 168", 8, retCnt) 'Permit service request for STAT:OPER,STAT:QUES and ESR registe...
Page 725 R&S ESPI Remote Control – Programming Examples Basic Programming Steps for the VISA Interface Non-blocking (user inputs possible) This method is recommended if the waiting time until the event to be signalled by an SRQ is long (longer than the selected time-out), and user inputs should be possible during the waiting time, or if the event is not certain to occur.
Page 726 R&S ESPI Remote Control – Programming Examples Basic Programming Steps for the VISA Interface The following programming example describes the Hold() function, which returns control to the operating system for the period of the waiting time selectable in milli- seconds. Rem ********************************************************************** Rem The waiting function below expects the transfer of the desired Rem waiting time in milliseconds.
Page 727 R&S ESPI Remote Control – Programming Examples Basic Programming Steps for the VISA Interface 7.2.1.5 Evaluation of SCPI Status Registers REM ------ Subroutine for evaluating Questionable Status Register --------- Public SUB Questionablestatus() Ques$ = SPACE$(20) 'Preallocate blanks to text variable status = viWrite(analyzer, "STATus:QUEStionable:EVENt?", 26, retCnt) status = viRead(analyzer, Ques$, 20, retCnt) PRINT "Questionable Status: ";...
Page 728: More Complex Programming Examples
R&S ESPI Remote Control – Programming Examples More Complex Programming Examples 7.3 More Complex Programming Examples In this section, the more advanced programming examples are included: • “Using Marker and Delta Marker” on page 7.7 • “Limit Lines and Limit Test” on page 7.12 •...
Page 729 R&S ESPI Remote Control – Programming Examples More Complex Programming Examples status = viWrite(analyzer, "CALC:MARK:X:SLIM:LEFT 99.6MHz;RIGHt 100.4MHz", 44, retCnt) 'Activate search limit and set to ±400 kHz about center frequency status = viWrite(analyzer, "CALC:THR:STAT ON", 16, retCnt) status = viWrite(analyzer, "CALC:THR -60DBM", 15, retCnt) 'Activate threshold and set to –60 dBm '--------- Activate search for spurious --------------------- status = viWrite(analyzer, "CALC:MARK:FUNC:FPE:SORT X", 25, retCnt)
Page 730 R&S ESPI Remote Control – Programming Examples More Complex Programming Examples 7.3.1.2 Shape Factor Measurement (Using n dB Down) The n-dB-down function of the R&S ESPI is used twice to determine the shape fac- tor of a filter (ratio of bandwidths at 60 dB and 3 dB below the filter maximum). The following example is again based on a signal with a level of –30 dBm at 100 MHz.
Page 731 R&S ESPI Remote Control – Programming Examples More Complex Programming Examples 7.3.1.3 Measuring the Third Order Intercept Point The third order intercept point (TOI) is the (virtual) level of two adjacent useful signals at which the intermodulation products of third order have the same level as the useful signals.
Page 732 R&S ESPI Remote Control – Programming Examples More Complex Programming Examples END SUB REM ************************************************************************ 7.3.1.4 Measuring the AM Modulation Depth The example below is based on an AM-modulated signal at 100 MHz with the fol- lowing characteristics: • Carrier signal level: –30 dBm •...
Page 733: Limit Lines And Limit Test
R&S ESPI Remote Control – Programming Examples More Complex Programming Examples 7.3.2 Limit Lines and Limit Test The example below shows the definition and use of a new limit line 5 for trace 1 on screen A and trace 2 on screen B with the following characteristics: •...
Page 734 R&S ESPI Remote Control – Programming Examples More Complex Programming Examples '--------- Definition of data points and threshold ---------- xlimit$ = "CALC:LIM5:CONT 120MHZ,126MHZ,127MHZ,128MHZ,129MHZ,130MHz,136MHz" status = viWrite(analyzer, xlimit$, 63, retCnt) 'Set values for x-axis status = viWrite(analyzer, "CALC:LIM5:UPP -70,-40,-40,-20,-40,-40,-70", 41, retCnt) 'Set values for y-axis status = viWrite(analyzer, "CALC:LIM5:UPP:THR -75DBM", 24, retCnt) 'Set y threshold (only possible for relative y-axis)
Page 735: Measuring The Channel And Adjacent Channel Power
R&S ESPI Remote Control – Programming Examples More Complex Programming Examples 7.3.3 Measuring the Channel and Adjacent Channel Power In the following example, the channel and adjacent channel power is first measured on a signal with a level of 0 dBm at 800 MHz to IS95. Then the channel and adjacent channel power is measured on a GSM signal at 935.2 MHz with fast ACP measure- ment (FAST ACP).
Page 736 R&S ESPI Remote Control – Programming Examples More Complex Programming Examples '--------- Read out result ------------------------------------------------ Print "Result (CP, ACP low, ACP up, Alt low, Alt up): " Print result$ '--------- Example 2: Configure CP/ACP manually for GSM ------------------ result$ = Space$(100) status = viWrite(analyzer, "FREQ:CENT 935.2MHz", 18, retCnt) 'Set frequency status = viWrite(analyzer, "CALC:MARK:FUNC:POW:SEL ACP", 26, retCnt)
Page 737: Occupied Bandwidth Measurement
R&S ESPI Remote Control – Programming Examples More Complex Programming Examples '--------- Start measurement and query result ----------------------------- status = viWrite(analyzer, "INIT;*WAI", 9, retCnt) 'Perform sweep with sync status = viWrite(analyzer, "CALC:LIM:ACP:ACH:RES?", 21, retCnt) 'Query result of status = viRead(analyzer, result$, 100, retCnt) 'limit check '--------- Read out result ------------------------------------------------ Print "Result Limit Check: ";...
Page 738: Time Domain Power Measurement
R&S ESPI Remote Control – Programming Examples More Complex Programming Examples 'OFF: switch off 'ON: switch on '--------- Perform measurement and query results --------------------------- status = viWrite(analyzer, "INIT;*WAI", 9, retCnt) 'Perform sweep with sync status = viWrite(analyzer, "CALC:MARK:FUNC:POW:RES? OBW", 27, retCnt) 'Query result status = viRead(analyzer, result$, 100, retCnt) Print result$...
Page 739: Fast Power Measurement On Power Ramps
R&S ESPI Remote Control – Programming Examples More Complex Programming Examples '--------- Perform measurement and query results ------------ status = viWrite(analyzer, "INIT;*WAI", 9, retCnt) 'Perform sweep with sync 'Query results: query$ = " CALC:MARK:FUNC:SUMM:PPE:RES?;" 'Peak measurement query$ = query$ + ":CALC:MARK:FUNC:SUMM:MEAN:RES?;" 'Mean measurement query$ = query$ + ":CALC:MARK:FUNC:SUMM:RMS:RES?;"...
Page 740 R&S ESPI Remote Control – Programming Examples More Complex Programming Examples Measurement Measurement Measurement Time Time Time Trigger Threshold Period Period Time offset of first pulse Trace start Fig. 7.1 Block diagram illustrating signal processing by the R&S ESPI In the example below, a sequence of 8 pulses is measured with an offset of 50 µs of the first pulse, 450 µs measurement time/pulse and 576.9 µs pulse period.
Page 741 R&S ESPI Remote Control – Programming Examples More Complex Programming Examples '--------- Perform measurement and query results ------------ status = viWrite(analyzer, "INIT;*WAI", 9, retCnt) 'Perform sweep with sync 'Query results: cmd$ = "CALC:MARK:FUNC:MSUM? " cmd$ = cmd$ + "50US," 'Offset of first pulse cmd$ = cmd$ + "450US,"...
Page 742 R&S ESPI Remote Control – Programming Examples More Complex Programming Examples Fig. 7.2 Block diagram illustrating signal processing by the R&S ESPI Either the root-mean-square power or the peak power is measured, depending on whether the RMS detector or the PEAK detector is selected. The function always uses TRACE 1 of the selected screen.
Page 743: Fast Level Measurement Using Frequency Lists
R&S ESPI Remote Control – Programming Examples More Complex Programming Examples cmd$ = cmd$ + "1US," 'Trigger offset, must be > 125 ns cmd$ = cmd$ + "PEAK," 'Peak detector cmd$ = cmd$ + "8" 'Number of bursts status = viWrite(analyzer, cmd$, 47, retCnt) status = viRead(analyzer, result$, 100, retCnt) 'Read results Print result$...
Page 744 R&S ESPI Remote Control – Programming Examples More Complex Programming Examples Frequency Type 1870.4 MHz GSM 900 2nd harmonic 2805.6 MHz GSM 900 3rd harmonic 3610.4 MHz GSM 1800 2nd harmonic 3740.8 MHz GSM 900 4th harmonic 5815.6 MHz GSM 1800 3rd Harmonic The frequencies are selected in ascending order to minimize system-inherent wait- ing times resulting from frequency changes.
Page 745: Level Correction Of Transducers (Definition Of Transducer Factors)
R&S ESPI Remote Control – Programming Examples More Complex Programming Examples 7.3.8 Level Correction of Transducers (Definition of Transducer Fac- tors) In more complex test systems, the frequency response of the test setup must be taken into account in all power measurements to avoid any measurement errors being introduced from sources other than the DUT.
Page 746: Measuring The Magnitude And Phase Of A Signal (I/Q Data Acquisition)
R&S ESPI Remote Control – Programming Examples More Complex Programming Examples 7.3.9 Measuring the Magnitude and Phase of a Signal (I/Q Data Acquisition) Due to the R&S ESPI's internal architecture, it is capable of measuring and output- ting the magnitude and phase of a signal in addition to its power values. This opens up a variety of possibilities for more in-depth analysis (FFT, demodulation, etc.).
Page 747 R&S ESPI Remote Control – Programming Examples More Complex Programming Examples '(= 25*2*1024 bytes) result$ = Space$(100) 'Buffer for simple results '--------- R&S ESPI default setting --------------------------------------- CALL SetupInstrument 'Default setting status = viWrite(analyzer, "TRAC:IQ:STAT ON", 15, retCnt) 'Activate I/Q data acquisition mode; must be done before TRAC:IQ:SET ! 'Select number of test points (= 128 * 1024 –...
Page 748: Averaging I/Q Data
R&S ESPI Remote Control – Programming Examples More Complex Programming Examples status = viRead(analyzer, result$, 6553600, retCnt) status = viWrite(analyzer, "TRAC:IQ:STAT OFF", 16, retCnt) 'Stop I/Q data aquisition mode if no further measurements are to be done END SUB REM ************************************************************************ 7.3.10 Averaging I/Q Data The R&S ESPI has averaging capability also for I/Q measurements, i.e.
Page 749: Reading And Writing Files
R&S ESPI Remote Control – Programming Examples More Complex Programming Examples 7.3.11 Reading and Writing Files 7.3.11.1 Reading a File from the Instrument In the following example, file TEST1.SET stored under D:\USER\DATA is read from the instrument and stored in the controller. REM ************************************************************************ Public Sub ReadFile() '--------- Generate variables ------------------------------...
Page 750 R&S ESPI Remote Control – Programming Examples More Complex Programming Examples 7.3.11.2 Creating a File on the Instrument In the following example, the TEST1.SET file available on the controller is stored in the instrument under D:\USER\DATA\DUPLICAT.SET. REM ************************************************************************ Public Sub WriteFile() '--------- Generate variables ------------------------------- FileBuffer$ = Space$(100000) 'Buffer for file...
Page 751 R&S ESPI Remote Control – Programming Examples More Complex Programming Examples 7.30 Operating Manual 1164.6607.12 - 02 www.valuetronics.com...
Page 752 R&S ESPI Maintenance and Instrument Interfaces Introduction 8 Maintenance and Instrument Inter- faces 8.1 Introduction ..........8.1 8.2 Maintenance .
Page 753: Maintenance
R&S ESPI Maintenance and Instrument Interfaces Maintenance 8.2 Maintenance 8.2.1 Storing and Packing For the storage temperature range of the R&S ESPI, see the instrument specifica- tions. When stored for an extended period of time the instrument should be pro- tected against dust.
Page 754: 1Interface Characteristics
R&S ESPI Maintenance and Instrument Interfaces Instrument Interfaces 8.3.1.1 Interface Characteristics • 8-bit parallel data transfer • bi-directional data transfer • three-line handshake • high data transfer rate • up to 15 instruments can be connected • maximal length of the interconnecting cables 15 m (single connection, 2m) •...
Page 755: 3Interface Functions
R&S ESPI Maintenance and Instrument Interfaces Instrument Interfaces Handshake bus with three lines. DAV (Data Valid), active low signals a valid data byte on the data bus. NRFD (Not Ready For Data), active low signals that one of the devices connected is not ready for data transfer. NDAC (Not Data Accepted), active low as long as the device connected is accepting the data present on the data bus.
Page 756: Printer Interface (Lpt)
R&S ESPI Maintenance and Instrument Interfaces Instrument Interfaces Command QuickBASIC command Effect on the instrument DCL (Device Clear) IBCMD (controller%, CHR$(20)) Aborts the processing of the commands just received and sets the command processing software to a defined initial state. Does not change the instrument settings.
Page 757 R&S ESPI Maintenance and Instrument Interfaces Instrument Interfaces Signal Input (I) Description Output (O) STROBE Pulse for transmitting a data byte, min. 1µs pulse width (active LOW) Data Line 0 Data Line 1 Data Line 2 Data Line 3 Data Line 4 Data Line 5 Data Line 6 Data Line 7...
Page 758: Rs-232-C Interface (Com)
R&S ESPI Maintenance and Instrument Interfaces Instrument Interfaces 8.3.3 RS-232-C Interface (COM) The standard R&S ESPI is equipped with a RS-232-C serial interface. The interface can be set up and activated manually in the SETUP-GENERAL SETUP menu in the COM INTERFACE table (selection OWNER = INSTRUMENT) for remote control. For details on the connector refer to the Quick Start Guide, chapter 1.
Page 759: 3Transmission Parameters
R&S ESPI Maintenance and Instrument Interfaces Instrument Interfaces • Interface ground, connected to instrument ground • DSR (Data Set Ready) Input, active LOW, Indicates that the remote station is ready to receive data. • RTS (Request To Send) Output, active LOW. Indicates that the local terminal wants to transmit data.
Page 760: 4Control Characters
R&S ESPI Maintenance and Instrument Interfaces Instrument Interfaces 8.3.3.4 Control Characters For interface control, several strings are defined and control characters are reserved which are based upon GPIB control. Control string or character Function '@REM' Switch over to remote '@LOC' Switch over to local '@SRQ' Service Request SRQ (SRQ is sent by the instrument)
Page 761: Hardware Handshake
R&S ESPI Maintenance and Instrument Interfaces Instrument Interfaces Hardware handshake For hardware handshake, the instrument indicates that it is ready to receive data via the lines DTR and RTS. A logic '0' on both lines means 'ready' and a logic '1' means 'not ready'.
Page 762: Error Messages
R&S ESPI Error Messages 9 Error Messages 9.1 Introduction ..........9.2 9.2 SCPI-Specific Error Messages .
Page 763: Introduction
R&S ESPI Error Messages Introduction 9.1 Introduction Error messages are entered in the error/event queue of the status reporting system in the remote control mode and can be queried with the command SYSTem: ERRor?. The answer format of R&S ESPI to the command is as follows: <error code>, "<error text with queue query>;...
Page 764 R&S ESPI Error Messages SCPI-Specific Error Messages 9.2 SCPI-Specific Error Messages Error code Error text in the case of queue poll Error explanation No error This message is output if the error queue does not contain any entries. Error code Error text in the case of queue poll Error explanation -100...
Page 765 R&S ESPI Error Messages SCPI-Specific Error Messages Error code Error text in the case of queue poll Error explanation -114 Header suffix out of range The header contains an invalid numeric suffix. Example: SENSe3 does not exist in the instrument. -120 Numeric data error The command contains a faulty numeric parameter.
Page 766 R&S ESPI Error Messages SCPI-Specific Error Messages Error code Error text in the case of queue poll Error explanation -158 String data not allowed The command contains a valid string at a position which is not allowed. Example: A text parameter is set in quotation marks, INPut:COUPling "DC" -160 Block data error The command contains faulty block data.
Page 767 R&S ESPI Error Messages SCPI-Specific Error Messages Error code Error text in the case of queue poll Error explanation -214 Trigger deadlock The trigger source for the initiation of measurement is set to GET and subsequent measurement is received. The measurement cannot be started until a GET is received, but the GET would cause an interrupted-error) -215 Arm deadlock...
Page 768 R&S ESPI Error Messages SCPI-Specific Error Messages Error code Error text in the case of queue poll Error explanation -254 Media full The media is full. -255 Directory full The media directory is full. -256 File name not found The file name cannot be found on the media. -257 File name error The file name is wrong.
Page 769 R&S ESPI Error Messages Device-Specific Messages Error code Error text in the case of queue poll Error explanation -420 Query UNTERMINATED The query is incomplete. Example: The instrument is addressed as a talker and receives incomplete data. -430 Query DEADLOCKED The query cannot be processed.
Page 770 R&S ESPI Index Index reflection measurement . . 4.284, 4.298 Symbols results ..... . 4.111 * (enhancement label) ... . 4.101 transmission measurement .
Page 771 R&S ESPI Index Correction data....4.110 split screen ....4.220 Display range Correction values normalization .
Page 772 R&S ESPI Index start ......4.73 ESC ......6.25 stop .
Page 773 R&S ESPI Index center frequency to ... 4.130 frequency ....4.74 CF stepsize to .
Page 774 R&S ESPI Index Protective earth setting ... . 4.46 interface ..... . 8.7 PTRansition part status register .
Page 775 R&S ESPI Index = MARKER ....4.72, 4.73 CCVS INT / EXT....6.212 0.1 * RBW ..4.73, 6.174, 6.175 CENTER.
Page 776 R&S ESPI Index DELETE FILE ....4.264 FM ..4.31, 4.128, 6.55, 6.160, 6.256 DELETE LIMIT LINE ..4.210, 6.26 FORMAT DISK .
Page 777 R&S ESPI Index LOGO ON/OFF ..4.222, 6.108 NOISE CORR ON/OFF . . 4.148, 6.199 MAKE DIRECTORY... 6.137 NOISE MEAS ... 4.121, 6.63 MANUAL .
Page 778 R&S ESPI Index RANGE LOG 100 dB ..4.77, 6.114 SELECT LIMIT LINE 4.209, 6.27, 6.28, RANGE LOG MANUAL ..4.77, 6.114 6.39, 6.42 RANGES 1-5/6-1 ... . . 4.239 SELECT MARKER .
Page 779 R&S ESPI Index SWEEP POINTS ..4.90, 6.210 X * RBW ..4.73, 6.174, 6.175 SWEEP REP ON/OFF ..4.243 X * SPAN .
Page 780 R&S ESPI Index external noise source..4.260 clear/write ....4.99 max hold ..... 4.99 Sweep continue single sweep .
Page 781 R&S ESPI 10.12 Operating Manual 1164.6607.12 - 02 www.valuetronics.com...
Page 782 R&S ESPI Operating Manual 1164.6607.12 - 02 10.13 www.valuetronics.com...
Page 783 R&S ESPI 10.14 Operating Manual 1164.6607.12 - 02 www.valuetronics.com...

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