Page 1: User Manual
® R&S FSW-K7 Analog Demodulation Measurement Option User Manual (;×êX2) 1173.9240.02 ─ 23...
Page 2 R&S FSW85 (1312.8000K85) The following firmware options are described: ● R&S FSW-K7 (1313.1339.02) © 2016 Rohde & Schwarz GmbH & Co. KG Mühldorfstr. 15, 81671 München, Germany Phone: +49 89 41 29 - 0 Fax: +49 89 41 29 12 164 Email: info@rohde-schwarz.com...
Page 3: Table Of Contents
® Contents R&S FSW-K7 Contents 1 Preface....................5 About this Manual......................5 Documentation Overview..................... 6 Conventions Used in the Documentation..............7 2 Welcome to the Analog Demodulation Application......9 Starting the Analog Demodulation Application............9 Understanding the Display Information..............10 3 Measurements and Result Displays...........13 4 Measurement Basics................
Page 4 ® Contents R&S FSW-K7 Working with Markers in the R&S FSW Analog Demodulation application..138 Limit Line Settings and Functions................154 Analysis in MSRA/MSRT Mode................160 7 I/Q Data Import and Export..............162 Import/Export Functions..................162 How to Export and Import I/Q Data................164 8 How to Perform Measurements in the Analog Demodulation Appli- cation....................167...
Page 5: Preface
® Preface R&S FSW-K7 About this Manual 1 Preface 1.1 About this Manual This Analog Demodulation User Manual provides all the information specific to the application. All general instrument functions and settings common to all applications and operating modes are described in the main R&S FSW User Manual.
Page 6: Documentation Overview
® Preface R&S FSW-K7 Documentation Overview 1.2 Documentation Overview This section provides an overview of the R&S FSW user documentation. You find it on the product page at: www.rohde-schwarz.com/product/FSW > "Downloads" > "Manuals" Getting started manual Introduces the R&S FSW and describes how to set up and start working with the prod- uct.
Page 7: Conventions Used In The Documentation
® Preface R&S FSW-K7 Conventions Used in the Documentation Data sheet and brochure The data sheet contains the technical specifications of the R&S FSW. It also lists the options and their order numbers as well as optional accessories. The brochure provides an overview of the instrument and deals with the specific char- acteristics.
Page 8 ® Preface R&S FSW-K7 Conventions Used in the Documentation an additionally connected mouse. The alternative procedure using the keys on the instrument or the on-screen keyboard is only described if it deviates from the standard operating procedures. The term "select" may refer to any of the described methods, i.e. using a finger on the touchscreen, a mouse pointer in the display, or a key on the instrument or on a key- board.
Page 9: Welcome To The Analog Demodulation Application
2 Welcome to the Analog Demodulation Application The R&S FSW-K7 AM/FM/PM measurement demodulator option converts the R&S FSW into an analog modulation analyzer for amplitude-, frequency- or phase- modulated signals. It measures not only characteristics of the useful modulation, but also factors such as residual FM or synchronous modulation.
Page 10: Understanding The Display Information
® Welcome to the Analog Demodulation Application R&S FSW-K7 Understanding the Display Information A dialog box opens that contains all operating modes and applications currently available on your R&S FSW. 2. Select the "Analog Demodulation" item. The R&S FSW opens a new measurement channel for the Analog Demodulation application.
Page 11 ® Welcome to the Analog Demodulation Application R&S FSW-K7 Understanding the Display Information = Channel bar for firmware and measurement settings 2+3 = Window title bar with diagram-specific (trace) information = Diagram area = Diagram footer with diagram-specific information, depending on result display...
Page 12 ® Welcome to the Analog Demodulation Application R&S FSW-K7 Understanding the Display Information Window title bar information For each diagram, the header provides the following information: Figure 2-1: Window title bar information in the Analog Demodulation application 1 = Window number...
Page 13: Measurements And Result Displays
® Measurements and Result Displays R&S FSW-K7 3 Measurements and Result Displays Access: "Overview" > "Display Config" Or: MEAS > "Display Config" The data that was measured by the R&S FSW can be evaluated using various different methods. In the Analog Demodulation application, up to six evaluation methods can be displayed simultaneously in separate windows.
Page 14: Fm Time Domain
® Measurements and Result Displays R&S FSW-K7 Remote command: LAY:ADD? '1',RIGH,'XTIM:AM:REL' (See on page 301) LAYout:ADD[:WINDow]? FM Time Domain Displays the frequency spectrum of the demodulated FM signal versus time. User Manual 1173.9240.02 ─ 23...
Page 15: Pm Time Domain
® Measurements and Result Displays R&S FSW-K7 Remote command: LAY:ADD? '1',RIGH,'XTIM:FM' (See on page 301) LAYout:ADD[:WINDow]? PM Time Domain Displays the phase deviations of the demodulated PM signal (in rad or °) versus time. User Manual 1173.9240.02 ─ 23...
Page 16: Am Spectrum
® Measurements and Result Displays R&S FSW-K7 Remote command: LAY:ADD? '1',RIGH,'XTIM:PM' (See on page 301) LAYout:ADD[:WINDow]? AM Spectrum Displays the modulation depth of the demodulated AM signal (in % or dB) versus AF span. The spectrum is calculated from the demodulated AM signal in the time domain via FFT.
Page 17: Fm Spectrum
® Measurements and Result Displays R&S FSW-K7 Remote command: LAY:ADD? '1',RIGH,'XTIMe:AM:REL:AFSPectrum1' (see on page 301) LAYout:ADD[:WINDow]? FM Spectrum Displays the frequency deviations of the demodulated FM signal (in Hz or dB) versus AF span. The spectrum is calculated from the demodulated AM signal in the time domain via FFT.
Page 18: Pm Spectrum
® Measurements and Result Displays R&S FSW-K7 Remote command: LAY:ADD? '1',RIGH,'XTIMe:FM:AFSPectrum1' (see on page 301) LAYout:ADD[:WINDow]? PM Spectrum Displays the phase deviations of the demodulated PM signal (in rad, ° or dB) versus AF span. The spectrum is calculated from the demodulated AM signal in the time domain via FFT.
Page 19: Rf Time Domain
® Measurements and Result Displays R&S FSW-K7 Remote command: LAY:ADD? '1',RIGH,'XTIMe:PM:AFSPectrum1' (see on page 301) LAYout:ADD[:WINDow]? RF Time Domain Displays the RF power of the input signal versus time. The level values represent the magnitude of the I/Q data set.
Page 20: Rf Spectrum
® Measurements and Result Displays R&S FSW-K7 Remote command: LAY:ADD? '1',RIGH,'XTIM:AM' (see on page 301) LAYout:ADD[:WINDow]? RF Spectrum Displays the spectrum of the input signal. In contrast to the Spectrum application, the frequency values are determined using FFT from the recorded I/Q data set.
Page 21: Result Summary
® Measurements and Result Displays R&S FSW-K7 Remote command: LAY:ADD? '1',RIGH,'XTIM:SPECTRUM' (see on page 301) LAYout:ADD[:WINDow]? Result Summary The result summary displays the results of the demodulation functions for all windows in a table. For each demodulation, the following information is provided:...
Page 22: Marker Table
® Measurements and Result Displays R&S FSW-K7 Label Description Mod Freq Modulation frequency SINAD Signal-to-noise-and-distortion (Calculated only if AF Spectrum is displayed) Measures the ratio of the total power to the power of noise and harmonic distortions. The noise and harmonic power is calculated inside the AF spectrum span. The DC offset is removed before the calculation.
Page 23: Marker Peak List
® Measurements and Result Displays R&S FSW-K7 Remote command: LAY:ADD? '1',RIGH, MTAB, see on page 301 LAYout:ADD[:WINDow]? Results: on page 321 CALCulate<n>:MARKer<m>:X on page 322 CALCulate<n>:MARKer<m>:Y? Marker Peak List The marker peak list determines the frequencies and levels of peaks in the spectrum or time domain.
Page 24: Measurement Basics
® Measurement Basics R&S FSW-K7 Demodulation Process 4 Measurement Basics Some background knowledge on basic terms and principles used in Analog Demodula- tion measurements is provided here for a better understanding of the required configu- ration settings. ● Demodulation Process.................... 24 ●...
Page 25 ® Measurement Basics R&S FSW-K7 Demodulation Process Figure 4-1: Block diagram of software demodulator User Manual 1173.9240.02 ─ 23...
Page 26: Demodulation Bandwidth
® Measurement Basics R&S FSW-K7 Demodulation Bandwidth The AM DC, FM DC and PM DC raw data of the demodulators is fed into the "Trace Arithmetic" block that combines consecutive data sets. Possible trace modes are: Clear Write, Max Hold, Min Hold and Average. The output data of the "Trace Arith- metic"...
Page 27: Sample Rate And Demodulation Bandwidth
® Measurement Basics R&S FSW-K7 Sample Rate and Demodulation Bandwidth 4.3 Sample Rate and Demodulation Bandwidth The maximum demodulation bandwidths that can be obtained during the measure- ment, depending on the sample rate, are listed in the tables below for different demod- ulation filter types.
Page 28: Af Triggers
® Measurement Basics R&S FSW-K7 AF Triggers Demodulation BW Sample Rate (Flat Top) Sample Rate (Gaussian Top) 64 MHz 160 MHz 40 MHz* 128 MHz 320 MHz 80 MHz* 200 MHz 640 MHz 160 MHz* 400 MHz 320 MHz 600 MHz...
Page 29: Af Filters
® Measurement Basics R&S FSW-K7 Time Domain Zoom 4.5 AF Filters Additional filters applied after demodulation help filter out unwanted signals, or correct pre-emphasized input signals. A CCITT filter allows you to evaluate the signal by simu- lating the characteristics of human hearing.
Page 30: Receiving Data Input And Providing Data Output
® Measurement Basics R&S FSW-K7 Receiving Data Input and Providing Data Output In contrast to the time domain zoom, the graphical zoom is available for all diagram evaluations. However, the graphical zoom is useful only if more measured values than trace points are available.
Page 31 ® Measurement Basics R&S FSW-K7 Receiving Data Input and Providing Data Output nected. Furthermore, a status bit (bit 3) in the STAT:QUES:POW status register is set. In this case you must decrease the level at the RF input connector and then close the message box.
Page 32 ® Measurement Basics R&S FSW-K7 Receiving Data Input and Providing Data Output probe is displayed in the "Probes" tab of the "Input" dialog box, individually for each connector. Single-ended and differential probes Both single-ended and differential probes are supported as input; however, since only one connector is occupied by a probe, the "Input Configuration"...
Page 33 ® Measurement Basics R&S FSW-K7 Receiving Data Input and Providing Data Output 4.7.4 Basics on External Generator Control Some background knowledge on basic terms and principles used for external genera- tor control is provided here for a better understanding of the required configuration set- tings.
Page 34 ® Measurement Basics R&S FSW-K7 Receiving Data Input and Providing Data Output R&S SMW rear panel BNC Trigger BNC Blank R&S FSW rear panel Figure 4-4: TTL connection for an R&S SMW generator The external generator can be used to calibrate the data source by performing either transmission or reflection measurements.
Page 35 ® Measurement Basics R&S FSW-K7 Receiving Data Input and Providing Data Output Figure 4-6: Test setup for reflection measurement Generated signal input In order to use the functions of the external generator, an appropriate generator must be connected and configured correctly. In particular, the generator output must be con- nected to the RF input of the R&S FSW.
Page 36 ® Measurement Basics R&S FSW-K7 Receiving Data Input and Providing Data Output Generator type TTL support Generator type TTL support SMR20 SMA01A SMA100A3 SMR20B11 SMA100A6 SMR27 SMB100A1 SMR27B11 SMB100A12 SMR30 SMB100A2 SMR30B11 SMB100A20 SMR40 SMB100A3 SMR40B11 SMB100A40 SMR50 SMBV100A3 SMR50B11...
Page 37 ® Measurement Basics R&S FSW-K7 Receiving Data Input and Providing Data Output Generator type TTL support Generator type TTL support SMIQ03 SMY01 SMIQ03B SMY02 SMIQ03E HP8254A SMIQ04B HP8257D SMIQ06B HP8340A SMJ03 HP8648 SMJ06 HP ESG-A Series 1000A, 2000A, 3000A, 4000A...
Page 38 ® Measurement Basics R&S FSW-K7 Receiving Data Input and Providing Data Output The inherent frequency and power level distortions can be determined by connecting the R&S FSW to the signal generator. The R&S FSW sends a predefined list of fre- quencies to the signal generator (see also Chapter 4.7.4.7, "Coupling the Frequen-...
Page 39 ® Measurement Basics R&S FSW-K7 Receiving Data Input and Providing Data Output Differences in level settings between the reference trace and the current instrument settings are taken into account automatically. If the span is reduced, a linear interpola- tion of the intermediate values is applied. If the span increases, the values at the left or right border of the reference dataset are extrapolated to the current start or stop fre- quency, i.e.
Page 40 ® Measurement Basics R&S FSW-K7 Receiving Data Input and Providing Data Output 4.7.4.6 Reference Trace, Reference Line and Reference Level Reference trace The calibration results are stored internally on the R&S FSW as a reference trace. For each measured sweep point the offset to the expected values is determined. If normali- zation is activated, the offsets in the reference trace are removed from the current measurement results to compensate for the inherent distortions.
Page 41 ® Measurement Basics R&S FSW-K7 Receiving Data Input and Providing Data Output If the DUT inserts a gain or an attenuation in the measurement, this effect can be reflected in the result display on the R&S FSW. To reflect a power offset in the mea-...
Page 42 ® Measurement Basics R&S FSW-K7 Receiving Data Input and Providing Data Output If the resulting frequency range exceeds the allowed ranges of the signal generator, an error message is displayed (see Chapter 4.7.4.8, "Displayed Information and Errors", on page 43) and the...
Page 43 ® Measurement Basics R&S FSW-K7 Receiving Data Input and Providing Data Output Example: Example for reverse sweep via minimum frequency = 100 MHz AnalyzerStart = 200 MHz AnalyzerStop = -150 MHz Offset = 20 MHz Numerator = Denominator = 1 →F...
Page 44 ® Measurement Basics R&S FSW-K7 Receiving Data Input and Providing Data Output Message Description "Ext. Generator Command Error!" Missing or wrong command in the generator setup file (see Chapter 4.7.4.3, "Generator Setup Files", on page 37 "Ext. Generator Visa Error!"...
Page 45: Analog Demodulation In Msra/Msrt Operating Mode
® Measurement Basics R&S FSW-K7 Analog Demodulation in MSRA/MSRT Operating Mode other connected devices. Using the same trigger on several devices is useful to syn- chronize the transmitted and received signals within a measurement. For details on the connectors see the R&S FSW "Getting Started" manual.
Page 46 ® Measurement Basics R&S FSW-K7 Analog Demodulation in MSRA/MSRT Operating Mode mode, an I/Q analyzer performs data acquisition, while in MSRT mode, a real-time measurement is performed to capture data. In MSRA/MSRT operating mode, only the MSRA/MSRT Master actually captures data;...
Page 47 ® Measurement Basics R&S FSW-K7 Analog Demodulation in MSRA/MSRT Operating Mode For details on the MSRA operating mode see the R&S FSW MSRA User Manual. For details on the MSRT operating mode see the R&S FSW Real-Time Spectrum Applica- tion and MSRT Operating Mode User Manual.
Page 48: Configuration
® Configuration R&S FSW-K7 Configuration Overview 5 Configuration Access: MODE > "Analog Demod" Analog demodulation measurements require a special application on the R&S FSW. When you activate an Analog Demodulation application the first time, a set of parame- ters is passed on from the currently active application. After initial setup, the parame- ters for the measurement channel are stored upon exiting and restored upon re-enter- ing the channel.
Page 49 ® Configuration R&S FSW-K7 Configuration Overview ● Configuring the measurement settings and, if necessary, storing the settings in a file. "Overview" window Throughout the measurement channel configuration, an overview of the most important currently defined settings is provided in the "Overview".
Page 50 ® Configuration R&S FSW-K7 Configuration Overview 2. Trigger Chapter 5.4, "Trigger Configuration", on page 96 3. Data Acquisition Chapter 5.5, "Data Acquisition", on page 105 4. Demod/Display Chapter 5.6, "Demodulation Display", on page 109 5. Demodulation Settings Chapter 5.7, "Demodulation", on page 110 6.
Page 51: Configuration According To Digital Standards
® Configuration R&S FSW-K7 Configuration According to Digital Standards 5.2 Configuration According to Digital Standards Access: "Overview" > "Setup Standard" Various predefined settings files for common digital standards are provided for use with the Analog Demodulation application. In addition, you can create your own settings files for user-specific measurements.
Page 52: Input And Frontend Settings
® Configuration R&S FSW-K7 Input and Frontend Settings Load Standard ← Setup Standard Loads the selected measurement settings file. Remote command: on page 187 [SENSe:]ADEMod<n>:PRESet[:STANdard] Save Standard ← Setup Standard Saves the current measurement settings for a specific standard as a file with the defined name.
Page 53: Radio Frequency Input
® Configuration R&S FSW-K7 Input and Frontend Settings The default input source for the R&S FSW is "Radio Frequency", i.e. the signal at the RF INPUT connector of the R&S FSW. If no additional options are installed, this is the only available input source.
Page 54: Input Coupling
® Configuration R&S FSW-K7 Input and Frontend Settings Remote command: on page 191 INPut:SELect Input Coupling The RF input of the R&S FSW can be coupled by alternating current (AC) or direct cur- rent (DC). This function is not available for input from the optional Digital Baseband Interface or from the optional Analog Baseband Interface.
Page 55: External Mixer Settings
® Configuration R&S FSW-K7 Input and Frontend Settings YIG-Preselector Activates or deactivates the YIG-preselector, if available on the R&S FSW. An internal YIG-preselector at the input of the R&S FSW ensures that image frequen- cies are rejected. However, this is only possible for a restricted bandwidth. To use the maximum bandwidth for signal analysis you can deactivate the YIG-preselector at the input of the R&S FSW, which can lead to image-frequency display.
Page 56 ® Configuration R&S FSW-K7 Input and Frontend Settings External Mixer State......................56 RF Start / RF Stop......................56 Handover Freq......................57 Band..........................57 Overrange....................... 57 Preset Band........................57 Mixer Type........................57 Mixer Settings (Harmonics Configuration)..............58 └ Range 1/2....................... 58 └ Harmonic Type....................58 └...
Page 57 ® Configuration R&S FSW-K7 Input and Frontend Settings Handover Freq. If due to the LO frequency the conversion of the input signal is not possible using one harmonic, the band must be split. An adjacent, partially overlapping frequency range can be defined using different harmonics (see "Mixer Settings (Harmonics Configura-...
Page 58 ® Configuration R&S FSW-K7 Input and Frontend Settings "3 Port" LO and IF data use separate ports Remote command: on page 198 [SENSe:]MIXer:PORTs Mixer Settings (Harmonics Configuration) The harmonics configuration determines the frequency range for user-defined bands (see "Band" on page 57).
Page 59 ® Configuration R&S FSW-K7 Input and Frontend Settings "Table" Defines the conversion loss via the table selected from the list. Pre- defined conversion loss tables are often provided with the external mixer and can be imported to the R&S FSW. Alternatively, you can define your own conversion loss tables.
Page 60 ® Configuration R&S FSW-K7 Input and Frontend Settings Remote command: on page 193 [SENSe:]MIXer:LOPower Signal ID Activates or deactivates visual signal identification. Two sweeps are performed alter- nately. Trace 1 shows the trace measured on the upper side band (USB) of the LO (the test sweep).
Page 61 ® Configuration R&S FSW-K7 Input and Frontend Settings Remote command: on page 193 [SENSe:]MIXer:BIAS[:LOW] on page 192 [SENSe:]MIXer:BIAS:HIGH Write to <CVL table name> ← Bias Settings Stores the bias setting in the currently selected "Conversion loss table" for the range (see "Managing Conversion Loss Tables"...
Page 62 ® Configuration R&S FSW-K7 Input and Frontend Settings Remote command: on page 202 [SENSe:]CORRection:CVL:SELect Edit Table Opens the "Edit Conversion loss table" dialog box to edit the selected conversion loss table. For details on table configuration, see "Creating and Editing Conversion Loss Tables"...
Page 63 ® Configuration R&S FSW-K7 Input and Frontend Settings File Name........................63 Comment........................64 Band..........................64 Harmonic Order......................64 Bias..........................64 Mixer Name........................64 Mixer S/N........................64 Mixer Type........................65 Position/Value....................... 65 Insert Value........................65 Delete Value........................65 Shift x..........................65 Shift y..........................65 Save..........................65 File Name Defines the name under which the table is stored in the C:\R_S\INSTR\USER\cvl\ directory on the instrument.
Page 64 ® Configuration R&S FSW-K7 Input and Frontend Settings Remote command: on page 202 [SENSe:]CORRection:CVL:SELect Comment An optional comment that describes the conversion loss table. The comment is user- definable. Remote command: on page 200 [SENSe:]CORRection:CVL:COMMent Band The waveguide or user-defined band to which the table applies. This setting is checked against the current mixer setting before the table can be assigned to the range.
Page 65: Digital I/Q Input Settings
® Configuration R&S FSW-K7 Input and Frontend Settings Mixer Type Specifies whether the external mixer to which the table applies is a two-port or three- port type. This setting is checked against the current mixer setting before the table can be assigned to the range.
Page 66 ® Configuration R&S FSW-K7 Input and Frontend Settings The following settings and functions are available to provide input via the optional Digi- tal Baseband Interface in the applications that support it. These settings are only available if the Digital Baseband Interface option is installed on the R&S FSW.
Page 67 ® Configuration R&S FSW-K7 Input and Frontend Settings Full Scale Level The "Full Scale Level" defines the level and unit that should correspond to an I/Q sam- ple with the magnitude "1". If "Auto" is selected, the level is automatically set to the value provided by the connec- ted device.
Page 68: Analog Baseband Input Settings
® Configuration R&S FSW-K7 Input and Frontend Settings 5.3.1.4 Analog Baseband Input Settings Access: INPUT/OUTPUT > "Input Source Config" > "Analog Baseband" tab The following settings and functions are available to provide input via the optional Ana- log Baseband Interface in the applications that support it.
Page 69 ® Configuration R&S FSW-K7 Input and Frontend Settings "I Only / Low IF I" The input signal at the BASEBAND INPUT I connector is filtered and resampled to the sample rate of the application. If the center frequency is set to 0 Hz, the real baseband signal is dis- played without down-conversion (Real Baseband I).
Page 70: Probe Settings
® Configuration R&S FSW-K7 Input and Frontend Settings For more information, see the R&S FSW I/Q Analyzer and I/Q Input User Manual. Remote command: on page 211 CALibration:AIQ:HATiming[:STATe] Center Frequency Defines the center frequency for analog baseband input. For real-type baseband input (I or Q only), the center frequency is always 0 Hz.
Page 71: External Generator Control Settings
® Configuration R&S FSW-K7 Input and Frontend Settings Common Mode Offset Sets the common mode offset. The setting is only available if a differential probe is connected to the R&S FSW. If the probe is disconnected, the common mode offset of the probe is reset to 0.0 V.
Page 72 ® Configuration R&S FSW-K7 Input and Frontend Settings Interface Configuration Settings For more information on configuring interfaces, see the "Remote Control Interfaces and Protocols" section in the R&S FSW User Manual. Generator Type......................72 Interface........................72 Handshake......................72 GPIB Address / TCP/IP Address...................73...
Page 73 ® Configuration R&S FSW-K7 Input and Frontend Settings Using the TTL interface allows for considerably higher measurement rates than pure GPIB control, because the frequency stepping of the R&S FSW is directly coupled with the frequency stepping of the generator.
Page 74 ® Configuration R&S FSW-K7 Input and Frontend Settings Measurement Settings Source State......................... 74 Source Power........................74 Source Offset........................ 74 Source Frequency Coupling..................75 (Manual) Source Frequency..................75 (Automatic) Source Frequency (Numerator/Denominator/Offset).........75 Result Frequency Start....................76 Result Frequency Stop....................76 Source State Activates or deactivates control of an external generator.
Page 75 ® Configuration R&S FSW-K7 Input and Frontend Settings Using this offset, attenuators or amplifiers at the output connector of the external gen- erator can be taken into account. This is useful, for example, for the displayed output power values on screen or during data entry. Positive offsets apply to an amplifier, while negative offsets apply to an attenuator after the external generator.
Page 76 ® Configuration R&S FSW-K7 Input and Frontend Settings Remote command: on page 230 SOURce:EXTernal:FREQuency[:FACTor]:DENominator on page 231 SOURce:EXTernal:FREQuency[:FACTor]:NUMerator on page 231 SOURce:EXTernal:FREQuency:OFFSet Result Frequency Start For reference only: The start frequency for the generator, calculated from the config- ured generator frequency and the start value defined for the R&S FSW.
Page 77 ® Configuration R&S FSW-K7 Input and Frontend Settings Remote command: on page 236 [SENSe:]CORRection:METHod Calibrate Reflection Short Starts a short-circuit reflection type measurement to determine a reference trace for calibration. If both calibrations (open circuit, short circuit) are carried out, the calibration trace is calculated by averaging the two measurements.
Page 78 ® Configuration R&S FSW-K7 Input and Frontend Settings Save As Trd Factor Uses the normalized measurement data to generate a transducer factor. The trace data is converted to a transducer with unit dB and stored in a file with the specified name and the suffix .trd under...
Page 79: Settings For 2 Ghz Bandwidth Extension (R&Sfsw-B2000)
® Configuration R&S FSW-K7 Input and Frontend Settings 5.3.1.7 Settings for 2 GHz Bandwidth Extension (R&S FSW-B2000) Access: INPUT/OUTPUT > "B2000 Config" The R&S FSW Analog Demodulation application supports the optional 2 GHz band- width extension (R&S FSW-B2000), if installed.
Page 80 ® Configuration R&S FSW-K7 Input and Frontend Settings TCPIP Address or Computer name When using the optional 2 GHz bandwidth extension (R&S FSW-B2000), the entire measurement via the IF OUT 2 GHZ connector and an oscilloscope, as well as both instruments, are controlled by the R&S FSW.
Page 81 ® Configuration R&S FSW-K7 Input and Frontend Settings The required connections between the R&S FSW and the oscilloscope are illustrated in the dialog box. Alignment consists of two steps. The first step requires a (temporary) connection from the REF OUTPUT 640 MHZ connector on the R&S FSW to the CH1 input on the oscil- loscope.
Page 82 ® Configuration R&S FSW-K7 Input and Frontend Settings For the second alignment step, the connector must be disconnected from the REF OUTPUT 640 MHZ connector and instead connected to the FSW B2000 ALIGNMENT SIGNAL SOURCE connector on the R&S FSW.
Page 83 ® Configuration R&S FSW-K7 Input and Frontend Settings If both alignment steps were performed successfully, the date of alignment is indicated. Remote commands: SYSTem:COMMunicate:RDEVice:OSCilloscope:ALIGnment:STEP[:STATe]? on page 206 SYSTem:COMMunicate:RDEVice:OSCilloscope:ALIGnment:DATE? on page 207 5.3.2 Power Sensor The R&S FSW can also analyze data from a connected power sensor.
Page 84 ® Configuration R&S FSW-K7 Input and Frontend Settings Unit/Scale........................85 Meas Time/Average...................... 85 Setting the Reference Level from the Measurement (Meas->Ref)........86 Reference Value......................86 Use Ref Lev Offset......................86 Average Count (Number of Readings)................86 Duty Cycle........................86 Using the power sensor as an external trigger..............86...
Page 85 ® Configuration R&S FSW-K7 Input and Frontend Settings SYSTem:COMMunicate:RDEVice:PMETer:CONFigure:AUTO[:STATe] on page 219 on page 219 SYSTem:COMMunicate:RDEVice:PMETer:COUNt? Zeroing Power Sensor Starts zeroing of the power sensor. For details on the zeroing process refer to the R&S FSW User Manual. Remote command: on page 220 CALibration:PMETer:ZERO:AUTO ONCE...
Page 86 ® Configuration R&S FSW-K7 Input and Frontend Settings Remote command: on page 224 [SENSe:]PMETer:MTIMe on page 225 [SENSe:]PMETer:MTIMe:AVERage[:STATe] Setting the Reference Level from the Measurement (Meas->Ref) Sets the currently measured power as a reference value for the relative display. The...
Page 87 ® Configuration R&S FSW-K7 Input and Frontend Settings This setting is only available in conjunction with a compatible power sensor. For details on using a power sensor as an external trigger, see the R&S FSW User Manual. Remote command: on page 229 [SENSe:]PMETer:TRIGger[:STATe]...
Page 88 ® Configuration R&S FSW-K7 Input and Frontend Settings 5.3.3.1 Amplitude Settings for RF Input Amplitude settings can be configured via the AMPT key or in the "Amplitude" dialog box. To display the "Amplitude" dialog box, do one of the following: ●...
Page 89 ® Configuration R&S FSW-K7 Input and Frontend Settings Since the hardware of the R&S FSW is adapted according to this value, it is recom- mended that you set the reference level close above the expected maximum signal level. Thus you ensure an optimum measurement (no compression, good signal-to- noise ratio).
Page 90 ® Configuration R&S FSW-K7 Input and Frontend Settings Automatically determines a reference level which ensures that no overload occurs at the R&S FSW for the current input data. At the same time, the internal attenuators are adjusted so the signal-to-noise ratio is optimized, while signal compression and clip- ping are minimized.
Page 91 ® Configuration R&S FSW-K7 Input and Frontend Settings Note: Electronic attenuation is not available for stop frequencies (or center frequencies in zero span) > 13.6 GHz. In "Auto" mode, RF attenuation is provided by the electronic attenuator as much as possible to reduce the amount of mechanical switching required.
Page 92 ® Configuration R&S FSW-K7 Input and Frontend Settings AC coupling blocks any DC voltage from the input signal. This is the default setting to prevent damage to the instrument. Very low frequencies in the input signal may be dis- torted.
Page 93 ® Configuration R&S FSW-K7 Input and Frontend Settings For more information on the optional Analog Baseband Interface, see the R&S FSW I/Q Analyzer and I/Q Input User Manual. Reference Level......................93 └ Shifting the Display (Offset)................93 └ Unit........................93 └...
Page 94 ® Configuration R&S FSW-K7 Input and Frontend Settings ● dBμA ● dBpW ● Volt ● Ampere ● Watt Remote command: on page 191 INPut:IMPedance on page 244 CALCulate<n>:UNIT:POWer Setting the Reference Level Automatically (Auto Level) ← Reference Level Automatically determines a reference level which ensures that no overload occurs at the R&S FSW for the current input data.
Page 95 ® Configuration R&S FSW-K7 Input and Frontend Settings Remote command: on page 210 INPut:IQ:FULLscale:AUTO on page 210 INPut:IQ:FULLscale[:LEVel] 5.3.4 Frequency Access: "Overview" > "Input/ Frontend" > "Frequency" tab Center frequency......................95 Center Frequency Stepsize...................95 Center frequency Defines the center frequency of the signal in Hertz.
Page 96: Trigger Configuration
® Configuration R&S FSW-K7 Trigger Configuration "X * Demod Sets the step size for the center frequency to a manually defined fac- BW" tor of the demodulation bandwidth. The "X-Factor" defines the per- centage of the demodulation bandwidth. Values between 1 and 100 % in steps of 1 % are allowed. The default setting is 10 %.
Page 97: Trigger Source Settings
® Configuration R&S FSW-K7 Trigger Configuration ● Trigger Source Settings..................97 ● Trigger Input and Output Settings................. 103 5.4.1 Trigger Source Settings Access: "Overview" > "Trigger" > "Trigger Source" tab Trigger Source......................97 └ Free Run......................98 └ External Trigger 1/2/3..................
Page 98: Free Run
® Configuration R&S FSW-K7 Trigger Configuration Remote command: on page 262 TRIGger[:SEQuence]:SOURce Free Run ← Trigger Source No trigger source is considered. Data acquisition is started manually or automatically and continues until stopped explicitly. Remote command: TRIG:SOUR IMM, see on page 262 TRIGger[:SEQuence]:SOURce External Trigger 1/2/3 ←...
Page 99: I/Q Power
® Configuration R&S FSW-K7 Trigger Configuration Note: Since the external trigger uses a second channel on the oscilloscope, the maxi- mum memory size, and thus record length, available for the input channel 1 is reduced by half. For details, see the oscilloscope's data sheet and documentation.
Page 100: Digital I/Q
® Configuration R&S FSW-K7 Trigger Configuration For more information on the Digital Baseband Interface or the Analog Baseband Inter- face, see the R&S FSW I/Q Analyzer and I/Q Input User Manual. Remote command: TRIG:SOUR BBP, see on page 262 TRIGger[:SEQuence]:SOURce Digital I/Q ←...
Page 101: Rf Power
® Configuration R&S FSW-K7 Trigger Configuration RF Power ← Trigger Source Defines triggering of the measurement via signals which are outside the displayed measurement range. For this purpose, the instrument uses a level detector at the first intermediate fre- quency.
Page 102: Trigger Offset
® Configuration R&S FSW-K7 Trigger Configuration Trigger Offset Defines the time offset between the trigger event and the start of the sweep. Offset > 0: Start of the sweep is delayed Offset < 0: Sweep starts earlier (pretrigger) For the "Time" trigger source, this function is not available.
Page 103: Trigger Input And Output Settings
® Configuration R&S FSW-K7 Trigger Configuration "AC" Connection through capacitor, removes unwanted DC and very low- frequency components. Remote command: on page 209 TRIGger[:SEQuence]:OSCilloscope:COUPling Slope For all trigger sources except time, you can define whether triggering occurs when the signal rises to the trigger level or falls down to it.
Page 104 ® Configuration R&S FSW-K7 Trigger Configuration Remote command: on page 265 OUTPut:TRIGger<port>:DIRection Output Type ← Trigger 2/3 Type of signal to be sent to the output "Device Trig- (Default) Sends a trigger when the R&S FSW triggers. gered" "Trigger Sends a (high level) trigger when the R&S FSW is in "Ready for trig- Armed"...
Page 105: Data Acquisition
® Configuration R&S FSW-K7 Data Acquisition Which pulse level will be sent is indicated by a graphic on the button. Remote command: on page 266 OUTPut:TRIGger<port>:PULSe:IMMediate 5.5 Data Acquisition Access: "Overview" > "Data Acquisition" How data is to be acquired and then demodulated is configured in the "Data Acquisi- tion"...
Page 106 ® Configuration R&S FSW-K7 Data Acquisition Demodulation Bandwidth.................... 106 Demodulation Filter..................... 106 Measurement Time (AQT)..................106 Capture Offset......................106 Resolution Bandwidth....................107 Demodulation Bandwidth Defines the demodulation bandwidth of the measurement. The demodulation band- width determines the sample rate with which the input signal is captured and analyzed.
Page 107: Continuous Sweep/Run Cont
® Configuration R&S FSW-K7 Data Acquisition Resolution Bandwidth Defines the resolution bandwidth for data acquisition. The available range is specified in the data sheet. Remote command: on page 255 [SENSe:]BANDwidth[:RESolution] 5.5.2 Sweep Settings Access: "Overview" > "Data Acquisition" > "Sweep" tab The sweep settings define how often data from the input signal is acquired and then demodulated.
Page 108: Single Sweep/ Run Single
® Configuration R&S FSW-K7 Data Acquisition Furthermore, the RUN CONT key controls the Sequencer, not individual sweeps. RUN CONT starts the Sequencer in continuous mode. For details on the Sequencer, see the R&S FSW User Manual. Remote command: on page 295 INITiate<n>:CONTinuous...
Page 109: Demodulation Display
® Configuration R&S FSW-K7 Demodulation Display Note: To update all active slave applications at once, use the "Refresh all" function in the "Sequencer" menu. Remote command: on page 296 INITiate<n>:REFResh Measurement Time (AQT) Defines how long data is acquired for demodulation.
Page 110: Demodulation
® Configuration R&S FSW-K7 Demodulation 5.7 Demodulation Access: "Overview" > "Demod Settings" Or: "Meas Setup" > "Demod" ● Basic Demodulation Measurement Parameters (Demod)........110 ● Demodulation Spectrum..................113 ● Filter.........................116 ● Scaling........................119 ● Units........................123 ● Result Table Settings.................... 124 5.7.1 Basic Demodulation Measurement Parameters (Demod) Access: "Overview"...
Page 111 ® Configuration R&S FSW-K7 Demodulation Selected Trace......................111 Time Domain Zoom.....................112 └ State......................112 └ Start......................112 └ Length......................112 └ Time per Division..................112 Zero Phase Reference Position (PM Time Domain only)........... 113 Phase Wrap On/Off (PM Time Domain only).............. 113 Squelch State Activates the squelch function, i.e.
Page 112 ® Configuration R&S FSW-K7 Demodulation Time Domain Zoom Using the time domain zoom, the demodulated data for a particular time span is extrac- ted and displayed in more detail. This is useful if the measurement time is very large and thus each sweep point represents a large time span. The time domain zoom func- tion distributes the available sweep points only among the time span defined by the zoom area length.
Page 113 ® Configuration R&S FSW-K7 Demodulation The "Time per Division" softkey is available from the main "Analog Demodulation" menu. Zero Phase Reference Position (PM Time Domain only) Defines the position at which the phase of the PM-demodulated signal is set to 0 rad.
Page 114 ® Configuration R&S FSW-K7 Demodulation Center........................114 Start........................114 Stop........................114 Span........................114 AF Full Span....................... 114 AF Center Defines the center frequency of the demodulated data to evaluate. Remote command: on page 271 [SENSe:]ADEMod<n>:AF:CENTer AF Start Defines the start frequency of the demodulated data to evaluate.
Page 115 ® Configuration R&S FSW-K7 Demodulation Remote command: on page 271 [SENSe:]ADEMod<n>:AF:SPAN:FULL 5.7.2.2 RF Evaluation Access: "Overview" > "Demod Settings" > "Spectrum" Or: "Meas Setup" > "Demod" > "Spectrum" tab These settings are only available for RF evaluation, both in time and frequency domain.
Page 116 ® Configuration R&S FSW-K7 Demodulation and f =DBW/2 and span are specified in the data sheet. Remote command: on page 273 [SENSe:]ADEMod<n>:SPECtrum:SPAN[:MAXimum] on page 273 [SENSe:]ADEMod<n>:SPECtrum:SPAN:ZOOM Demodulation Bandwidth Defines the demodulation bandwidth of the measurement. The demodulation band- width determines the sample rate with which the input signal is captured and analyzed.
Page 117 ® Configuration R&S FSW-K7 Demodulation High Pass........................117 Pass........................117 Weighting........................118 Deemphasis........................ 119 Deactivating all AF Filters................... 119 High Pass Defines a high pass filter with the given limit to separate the DC component. The filters are indicated by the 3 dB cutoff frequency. The 50 Hz and 300 Hz filters are designed as 2nd-order Butterworth filter (12 dB/octave).
Page 118 ® Configuration R&S FSW-K7 Demodulation ● Absolute low pass filters: Absolute filters are indicated by the 3 dB cutoff frequency. The 3 kHz, 15 kHz and 23 kHz filters are designed as 5th-order Butterworth filters (30 dB/octave). The 150 kHz filter is designed as 8th-order Butterworth filter (48 dB/octave).
Page 119 ® Configuration R&S FSW-K7 Demodulation Remote command: on page 275 [SENSe:]FILTer<n>:CCITt on page 275 [SENSe:]FILTer<n>:CCIR:[:UNWeighted][:STATe] on page 274 [SENSe:]FILTer<n>:CCIR:WEIGhted[:STATe] on page 274 [SENSe:]FILTer<n>:AWEighted[:STATe] Deemphasis Activates a deemphasis filter with the given time constant. Sometimes a modulated signal is extorted by a pre-emphasis filter before transmission, for example to eliminate frequencies that are more prone to interferences.
Page 120 ® Configuration R&S FSW-K7 Demodulation The scaling parameters define the range of the demodulated data to be displayed. ● Evaluation......................120 ● Evaluation......................122 5.7.4.1 AF Evaluation Access: "Overview" > "Demod Settings" > "Scaling" Or: "Meas Setup" > "Demod" > "Scaling" tab These settings are only available for AF evaluations.
Page 121 ® Configuration R&S FSW-K7 Demodulation Remote command: on page 250 DISPlay[:WINDow<n>]:TRACe<t>:Y[:SCALe]:PDIVision Reference Value Position Determines the position of the reference value for the modulation depth or the phase deviation or frequency deviation on the y-axis of the diagram. The position is entered as a percentage of the diagram height with 100 % correspond- ing to the upper diagram border.
Page 122 ® Configuration R&S FSW-K7 Demodulation If DC is selected, the phase runs according to the existing frequency offset. In addi- tion, the DC signal contains a phase offset of ± π. If AC is selected, the frequency offset and phase offset are automatically corrected, i.e.
Page 123 ® Configuration R&S FSW-K7 Demodulation Range Defines the displayed y-axis range in dB. The default value is 100 dB. For Analog Demodulation measurements, time domain scaling is defined in Hz (default: 500 kHz). Remote command: on page 249 DISPlay[:WINDow<n>]:TRACe<t>:Y[:SCALe] Ref Level Position Defines the reference level position, i.e.
Page 124 ® Configuration R&S FSW-K7 Demodulation The units define how the demodulated data is displayed. Phase Unit (Rad/Deg)....................124 THD Unit (% / DB).......................124 Relative Unit........................124 Phase Unit (Rad/Deg) Sets the phase unit to rad or deg for displaying PM signals.
Page 125 ® Configuration R&S FSW-K7 Demodulation In addition to common absolute demodulation, the R&S FSW Analog Demodulation application also provides demodulation results relative to user-defined or measured reference values in the Result Summary. The settings for the Result Summary can be defined individually for the different modu- lation types (FM, AM, PM).
Page 126: Output Settings
® Configuration R&S FSW-K7 Output Settings Reference Value Defines the reference value to be used for relative demodulation results and recalcu- lates the results. If necessary, the detector is activated. Note: A reference value 0 would provide infinite results and is thus automatically cor- rected to 0.1.
Page 127 ® Configuration R&S FSW-K7 Output Settings Noise Source Control....................127 Noise Source Control This command turns the 28 V supply of the BNC connector labeled NOISE SOURCE CONTROL on the R&S FSW on and off. External noise sources are useful when you are measuring power levels that fall below the noise floor of the R&S FSW itself, for example when measuring the noise level of a...
Page 128 ® Configuration R&S FSW-K7 Output Settings Online Demodulation Output State................128 Output Selection......................128 Coupling........................ 128 AC Cutoff Frequency....................129 Phones Output......................129 Online Demodulation Output State Enables or disables online demodulation output. If enabled, the demodulated audio fre- quencies are output to the IF/VIDEO/DEMOD output connector on the rear panel of the R&S FSW.
Page 129: Automatic Settings
® Configuration R&S FSW-K7 Automatic Settings If DC is selected, the absolute frequency is displayed, i.e. an input signal with an offset relative to the center frequency is not displayed symmetrically with respect to the zero line. If AC is selected, the frequency offset is automatically corrected, i.e. the trace is always symmetric with respect to the zero line.
Page 130 ® Configuration R&S FSW-K7 Automatic Settings Adjusting settings automatically during triggered measurements When you select an auto adjust function a measurement is performed to determine the optimal settings. If you select an auto adjust function for a triggered measurement, you are asked how the R&S FSW should behave:...
Page 131 ® Configuration R&S FSW-K7 Automatic Settings Setting the Reference Level Automatically (Auto Level) Automatically determines a reference level which ensures that no overload occurs at the R&S FSW for the current input data. At the same time, the internal attenuators and the preamplifier (for analog baseband input: the full scale level) are adjusted so the sig- nal-to-noise ratio is optimized, while signal compression and clipping are minimized.
Page 132 ® Configuration R&S FSW-K7 Automatic Settings Lower Level Hysteresis When the reference level is adjusted automatically using the Auto Level function, the internal attenuators and the preamplifier are also adjusted. To avoid frequent adapta- tion due to small changes in the input signal, you can define a hysteresis. This setting defines a lower threshold the signal must fall below (compared to the last measure- ment) before the reference level is adapted automatically.
Page 133: Analysis
® Analysis R&S FSW-K7 Trace Settings 6 Analysis Access: "Overview" > "Analysis" General result analysis settings concerning the trace, markers, lines etc. are identical to the analysis functions in the base unit except for the special marker functions. The remote commands required to perform these tasks are described in Chapter 11, "Remote Commands for Analog Demodulation...
Page 134 ® Analysis R&S FSW-K7 Trace Settings Trace 1/Trace 2/Trace 3/Trace 4/Trace 5/Trace 6............134 Trace Mode......................... 134 Detector........................135 Hold..........................135 Average Mode......................135 Average Count......................136 Predefined Trace Settings - Quick Config..............136 Trace 1/Trace 2/Trace 3/Trace 4 (Softkeys)............... 136 Trace 1/Trace 2/Trace 3/Trace 4/Trace 5/Trace 6 Selects the corresponding trace for configuration.
Page 135 ® Analysis R&S FSW-K7 Trace Settings "View" The current contents of the trace memory are frozen and displayed. "Blank" Removes the selected trace from the display. Remote command: on page 287 DISPlay[:WINDow<n>]:TRACe<t>:MODE Detector Defines the trace detector to be used for trace analysis.
Page 136: Trace / Data Export Configuration
® Analysis R&S FSW-K7 Trace / Data Export Configuration Remote command: on page 292 [SENSe:]AVERage<n>:TYPE Average Count Determines the number of averaging or maximum search procedures If the trace modes "Average", "Max Hold" or "Min Hold" are set. In continuous sweep mode, if sweep count = 0 (default), averaging is performed over 10 sweeps.
Page 137 ® Analysis R&S FSW-K7 Trace / Data Export Configuration Export all Traces and all Table Results...............137 Include Instrument Measurement Settings..............137 Trace to Export......................137 Decimal Separator...................... 137 Export Trace to ASCII File..................138 Export all Traces and all Table Results Selects all displayed traces and result tables (e.g. Result Summary, marker table etc.) in the current application for export to an ASCII file.
Page 138: Working With Markers In The R&S Fsw Analog Demodulation Application
® Analysis R&S FSW-K7 Working with Markers in the R&S FSW Analog Demodulation application Export Trace to ASCII File Opens a file selection dialog box and saves the selected trace in ASCII format (.dat) to the specified file and directory.
Page 139 ® Analysis R&S FSW-K7 Working with Markers in the R&S FSW Analog Demodulation application In the Analog Demodulation application, up to 17 markers or delta markers can be acti- vated for each window simultaneously. The markers are distributed among 3 tabs for a better overview. By default, the first marker is defined as a normal marker, whereas all others are defined as delta markers with reference to the first marker.
Page 140 ® Analysis R&S FSW-K7 Working with Markers in the R&S FSW Analog Demodulation application Marker Position (X-value) Defines the position (x-value) of the marker in the diagram. For normal markers, the absolute position is indicated. For delta markers, the position relative to the reference marker is provided.
Page 141 ® Analysis R&S FSW-K7 Working with Markers in the R&S FSW Analog Demodulation application Assigning the Marker to a Trace The "Trace" setting assigns the selected marker to an active trace. The trace deter- mines which value the marker shows at the marker position. If the marker was previ- ously assigned to a different trace, the marker remains on the previous frequency or time, but indicates the value of the new trace.
Page 142 ® Analysis R&S FSW-K7 Working with Markers in the R&S FSW Analog Demodulation application Remote command: on page 328 DISPlay:MTABle Marker Stepsize Defines the size of the steps that the marker position is moved using the rotary knob. "Standard" The marker position is moved in steps of (Span/1000), which corre- sponds approximately to the number of pixels for the default display of 1001 sweep points.
Page 143: Marker Search Settings And Positioning Functions
® Analysis R&S FSW-K7 Working with Markers in the R&S FSW Analog Demodulation application Remote command: on page 327 CALCulate<n>:MARKer<m>:LINK 6.3.2 Marker Search Settings and Positioning Functions Access: "Overview" > "Analysis" > "Marker" > "Search" or: "Marker" > "Search" Several functions are available to set the marker to a specific position very quickly and easily, or to use the current marker position to define another characteristic value.
Page 144 ® Analysis R&S FSW-K7 Working with Markers in the R&S FSW Analog Demodulation application Remote command: on page 338 CALCulate<n>:MARKer<m>:PEXCursion 6.3.2.2 Positioning Functions Access: MKR -> The following functions set the currently selected marker to the result of a peak search or set other characteristic values to the current marker value.
Page 145: Measuring Phase Noise
® Analysis R&S FSW-K7 Working with Markers in the R&S FSW Analog Demodulation application Remote command: on page 339 CALCulate<n>:MARKer<m>:MAXimum:NEXT on page 340 CALCulate<n>:MARKer<m>:MAXimum:RIGHt on page 339 CALCulate<n>:MARKer<m>:MAXimum:LEFT on page 342 CALCulate<n>:DELTamarker<m>:MAXimum:NEXT on page 342 CALCulate<n>:DELTamarker<m>:MAXimum:RIGHt on page 341 CALCulate<n>:DELTamarker<m>:MAXimum:LEFT Search Minimum Sets the selected marker/delta marker to the minimum of the trace.
Page 146: Marker Function Configuration
® Analysis R&S FSW-K7 Working with Markers in the R&S FSW Analog Demodulation application 6.3.4 Marker Function Configuration Access: "Overview" > "Analysis" > "Marker Functions" > "Phase Noise" Or: MKR FUNC > "Select Marker Function" Special marker functions can be selected via the "Marker Function" dialog box.
Page 147 ® Analysis R&S FSW-K7 Working with Markers in the R&S FSW Analog Demodulation application ● Phase Noise Measurement Marker...............147 ● Marker Peak List....................149 ● Measuring Characteristic Bandwidths (n dB Down Marker)........152 ● Deactivating All Marker Functions.................154 6.3.4.1 Phase Noise Measurement Marker Access: "Overview"...
Page 148 ® Analysis R&S FSW-K7 Working with Markers in the R&S FSW Analog Demodulation application Remote commands: on page 353 CALCulate<n>:MARKer<m>:FUNCtion:PNOise[:STATe] on page 354 CALCulate<n>:MARKer<m>:FUNCtion:PNOise:RESult? Phase Noise Measurement State................148 Switching All Phase Noise Measurements Off............148 Phase Noise Measurement State Activates or deactivates phase noise measurement at the marker position in the dia- gram.
Page 149 ® Analysis R&S FSW-K7 Working with Markers in the R&S FSW Analog Demodulation application 6.3.4.2 Marker Peak List Access: "Overview" > "Analysis" > "Marker Functions" > "Marker Peak List" Or: MKR FUNC > "Marker Peak List" A common measurement task is to determine peak values, i.e. maximum or minimum signal levels.
Page 150 ® Analysis R&S FSW-K7 Working with Markers in the R&S FSW Analog Demodulation application Figure 6-1: Trace example The following table lists the peaks as indicated by the marker numbers in the diagram above, as well as the minimum decrease in amplitude to either side of the peak: Marker # Min.
Page 151 ® Analysis R&S FSW-K7 Working with Markers in the R&S FSW Analog Demodulation application Using a peak as a fixed reference marker Some results are analyzed in relation to a peak value, for example a carrier frequency level. In this case, the maximum level can be determined by an initial peak search and then be used as a reference point for further measurement results.
Page 152 ® Analysis R&S FSW-K7 Working with Markers in the R&S FSW Analog Demodulation application Maximum Number of Peaks Defines the maximum number of peaks to be determined and displayed. Remote command: on page 347 CALCulate<n>:MARKer<m>:FUNCtion:FPEaks:LIST:SIZE Peak Excursion Defines the minimum level value by which a signal must rise or fall so that it is identi- fied as a maximum or a minimum by the search functions.
Page 153 ® Analysis R&S FSW-K7 Working with Markers in the R&S FSW Analog Demodulation application If a positive offset is entered, the markers T1 and T2 are placed below the active refer- ence point. If a negative value is entered (for example for notch filter measurements), the markers T1 and T2 are placed above the active reference point.
Page 154: Limit Line Settings And Functions
® Analysis R&S FSW-K7 Limit Line Settings and Functions Remote commands: on page 352 CALCulate<n>:MARKer<m>:FUNCtion:NDBDown:STATe on page 352 CALCulate<n>:MARKer<m>:FUNCtion:NDBDown:RESult? n dB down Marker State....................154 n dB down Delta Value....................154 n dB down Marker State Activates or deactivates the special n dB down marker function.
Page 155: Limit Line Management
® Analysis R&S FSW-K7 Limit Line Settings and Functions 6.4.1 Limit Line Management Access: "Overview" > "Analysis" > "Lines" > "Limit Lines" or: LINES > "Line Config" > "Limit Lines" For the limit line overview, the R&S FSW searches for all stored limit lines with the file extension .LIN in the limits subfolder of the main installation folder.
Page 156 ® Analysis R&S FSW-K7 Limit Line Settings and Functions Unit The unit in which the y-values of the data points of the limit line are defined. Compatibility Indicates whether the limit line definition is compatible with the current measurement settings.
Page 157: Limit Line Details
® Analysis R&S FSW-K7 Limit Line Settings and Functions Remote command: on page 356 CALCulate<n>:LIMit<k>:CONTrol:OFFSet Y-Offset Shifts a limit line that has relative values for the y-axis (levels or linear units such as volt) vertically. This setting does not have any effect on limit lines that are defined by absolute values for the y-axis.
Page 158 ® Analysis R&S FSW-K7 Limit Line Settings and Functions Name...........................158 Comment........................158 Threshold........................158 Margin......................... 159 X-Axis..........................159 Y-Axis..........................159 Data points........................159 Insert Value......................... 160 Delete Value........................160 Shift x.......................... 160 Shift y.......................... 160 Save..........................160 Import.......................... 160 Export..........................160 Name Defines the limit line name. All names must be compatible with Windows conventions for file names.
Page 159 ® Analysis R&S FSW-K7 Limit Line Settings and Functions Remote command: on page 360 CALCulate<n>:LIMit<k>:LOWer:THReshold on page 363 CALCulate<n>:LIMit<k>:UPPer:THReshold Margin Defines a margin for the limit line. The default setting is 0 dB (i.e. no margin). Remote command: on page 358 CALCulate<n>:LIMit<k>:LOWer:MARGin...
Page 160: Analysis In Msra/Msrt Mode
® Analysis R&S FSW-K7 Analysis in MSRA/MSRT Mode Insert Value Inserts a data point in the limit line above the selected one in the "Edit Limit Line" dia- log box. Delete Value Deletes the selected data point in the "Edit Limit Line" dialog box.
Page 161 ® Analysis R&S FSW-K7 Analysis in MSRA/MSRT Mode The analysis settings and functions available in MSRA/MSRT mode are those descri- bed for common Signal and Spectrum Analyzer mode. Analysis line settings In addition, an analysis line can be positioned. The analysis line is a common time marker for all MSRA/MSRT applications.
Page 162: Import/Export Functions
® I/Q Data Import and Export R&S FSW-K7 Import/Export Functions 7 I/Q Data Import and Export Baseband signals mostly occur as so-called complex baseband signals, i.e. a signal representation that consists of two channels; the in phase (I) and the quadrature (Q) channel.
Page 163: I/Q Data Import And Export
® I/Q Data Import and Export R&S FSW-K7 Import/Export Functions I/Q data can only be imported and exported in applications that process I/Q data, such as the I/Q Analyzer or optional applications. See the corresponding user manuals for those applications for details.
Page 164: How To Export And Import I/Q Data
® I/Q Data Import and Export R&S FSW-K7 How to Export and Import I/Q Data For details, see "Protecting Data Using the Secure User Mode" in the "Data Manage- ment" section of the R&S FSW User Manual. Remote command: on page 310 MMEMory:STORe<n>:TRACe...
Page 165 ® I/Q Data Import and Export R&S FSW-K7 How to Export and Import I/Q Data 7. In the file selection dialog box, select a storage location and enter a file name. 8. Select "Save". The captured data is stored to a file with the extension .iq.tar.
Page 166 ® I/Q Data Import and Export R&S FSW-K7 How to Export and Import I/Q Data 4. Drag the I/Q parameter XML file, e.g. example.xml, into your web browser. User Manual 1173.9240.02 ─ 23...
Page 167: How To Perform Measurements In The Analog Demodulation Appli- Cation
® How to Perform Measurements in the Analog Demodulation Application R&S FSW-K7 8 How to Perform Measurements in the Ana- log Demodulation Application The following step-by-step instructions demonstrate how to perform an Analog Demod- ulation measurement with the optional Analog Demodulation application.
Page 168: How To Export Trace Data And Numerical Results
® How to Perform Measurements in the Analog Demodulation Application R&S FSW-K7 How to Export Trace Data and Numerical Results ● Configure a trace to display the average over a series of sweeps (on the "Trace" tab; if necessary, increase the "Sweep Count" in the "Data Acquisition"...
Page 169 ® How to Perform Measurements in the Analog Demodulation Application R&S FSW-K7 How to Export Trace Data and Numerical Results 5. In the file selection dialog box, select the storage location and file name for the export file. 6. If necessary, change the decimal separator to be used for the ASCII export file.
Page 170: Measurement Example: Demodulating An Fm Signal
The measurement is performed using the following devices: ● An R&S FSW with application firmware R&S FSW-K7: Analog Demodulation ● A vector signal generator, e.g. R&S SMW Signal R&S FSW...
Page 171 ® Measurement Example: Demodulating an FM Signal R&S FSW-K7 Figure 9-2: Default Analog Demodulation measurement result display 5. Set the measurement time (AQT) to 1 ms in order to measure 10 periods of the sig- nal. 6. Adjust the y-axis scaling to the measured frequency deviation automatically by selecting the "Scale Config"...
Page 172 ® Measurement Example: Demodulating an FM Signal R&S FSW-K7 Figure 9-4: RF spectrum of FM signal with default demodulation bandwidth = 5 MHz 8. As you can see in Figure 9-4, the default demodulation bandwidth of 5 MHz is much too large - the actual signal takes up only a small part of the displayed range.
Page 173 ® Measurement Example: Demodulating an FM Signal R&S FSW-K7 9. Now the RF spectrum shows that part of the FM signal is cut off. The missing sig- nal parts are not included in the calculated results. Increase the demodulation bandwidth to 400 kHz to include the entire signal, but no interfering frequencies.
Page 174 ® Measurement Example: Demodulating an FM Signal R&S FSW-K7 Figure 9-7: FM spectrum and Result Summary including SINAD and THD values From the FM spectrum, the SINAD and THD are also calculated and displayed in the Result Summary. 12. Since the "AF Auto Scale" function is enabled, the "FM Spectrum" diagram is scaled according to the current measurement automatically.
Page 175 Measurement Example: Demodulating an FM Signal R&S FSW-K7 Note that while the reference values at the top of both y-axes are now identical, the reference values indicated in the window title bars are not. This is due to the fact...
Page 176: Optimizing And Troubleshooting The Measurement
® Optimizing and Troubleshooting the Measurement R&S FSW-K7 10 Optimizing and Troubleshooting the Mea- surement If the results do not meet your expectations, consider the following notes and tips to optimize the measurement. Determining the demodulation bandwidth A frequent cause for measurement errors and false results is an incorrectly defined demodulation bandwidth (DBW).
Page 177: Remote Commands For Analog Demodulation Measurements
"Programming Example", on page 376. Status registers The R&S FSW-K7 option uses the status registers of the base unit (except for the STATus:QUEStionable:ACPLimit register). For a description see the R&S FSW User Manual. General R&S FSW Remote Commands The application-independent remote commands for general tasks on the R&S FSW are also available for Analog Demodulation measurements and are described in the R&S FSW User Manual.
Page 178: Introduction
® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Introduction 11.1 Introduction Commands are program messages that a controller (e.g. a PC) sends to the instru- ment or software. They operate its functions ('setting commands' or 'events') and request information ('query commands'). Some commands can only be used in one way, others work in two ways (setting and query).
Page 179 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Introduction Default parameter values that are used directly after resetting the instrument (*RST command) are indicated as *RST values, if available. ● Default unit This is the unit used for numeric values if no other unit is provided with the parame- ter.
Page 180 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Introduction Example: Without a numeric suffix in the optional keyword: [SENSe:]FREQuency:CENTer is the same as FREQuency:CENTer With a numeric suffix in the optional keyword: DISPlay[:WINDow<1...4>]:ZOOM:STATe DISPlay:ZOOM:STATe ON enables the zoom in window 1 (no suffix).
Page 181 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Introduction Values exceeding the resolution of the instrument are rounded up or down. If the number you have entered is not supported (e.g. in case of discrete steps), the command returns an error.
Page 182: Common Suffixes
® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Common Suffixes 11.1.6.3 Character Data Character data follows the syntactic rules of keywords. You can enter text using a short or a long form. For more information see Chapter 11.1.2, "Long and Short Form",...
Page 183: Activating Analog Demodulation Measurements
® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Activating Analog Demodulation Measurements Suffix Value range Description <t> 1 to 6 Trace <k> 1 to 8 Limit line 11.3 Activating Analog Demodulation Measurements Analog demodulation measurements require a special application on the R&S FSW.
Page 184: Instrument:create:replace
® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Activating Analog Demodulation Measurements <ChannelName> String containing the name of the channel. The channel name is displayed as the tab label for the measurement channel. Note: If the specified name for a new channel already exists, the...
Page 185 3GPP FDD UE (R&S FSW-K73) MWCD 3G FDD UE 802.11ad (R&S FSW-K95) WIGIG 802.11ad Amplifier Measurements (R&S FSW-K18) AMPLifier Amplifier Analog Demodulation (R&S FSW-K7) ADEM Analog Demod Avionics (R&S FSW-K15) AVIonics Avionics cdma2000 BTS (R&S FSW-K82) BC2K CDMA2000 BTS cdma2000 MS (R&S FSW-K83)
Page 186: Instrument:rename
® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Activating Analog Demodulation Measurements Application <ChannelType> Default Channel Name*) Parameter TD-SCDMA BTS (R&S FSW-K76) BTDS TD-SCDMA BTS TD-SCDMA UE (R&S FSW-K77) MTDS TD-SCDMA UE Transient Analysis (R&S FSW-K60) Transient Analysis VSA (R&S FSW-K70) DDEM WLAN (R&S FSW-K91)
Page 187: Configuring The Measurement
® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement Manual operation: "Preset Channel" on page 50 11.4 Configuring the Measurement The following remote commands are required to configure an Analog Demodulation measurement. Specific commands: ● Managing Standard Settings.................187...
Page 188 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement Return values: <Standard> The query returns the name of the currently loaded standard. Manual operation: "Load Standard" on page 52 [SENSe:]ADEMod<n>:PRESet:RESTore This command restores the default configurations of predefined Analog Demodulation standards.
Page 189 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement 11.4.2.1 RF Input ................189 INPut:ATTenuation:PROTection:RESet ......................189 INPut:CONNector ......................189 INPut:COUPling .........................190 INPut:DPATh ..................190 INPut:FILTer:HPASs[:STATe] ....................190 INPut:FILTer:YIG[:STATe] ......................191 INPut:IMPedance .........................191 INPut:SELect INPut:ATTenuation:PROTection:RESet This command resets the attenuator and reconnects the RF input with the input mixer after an overload condition occurred and the protection mechanism intervened.
Page 190 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement Parameters: <CouplingType> AC coupling DC coupling *RST: Example: INP:COUP DC Manual operation: "Input Coupling" on page 54 INPut:DPATh <State> Enables or disables the use of the direct path for frequencies close to 0 Hz.
Page 191 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement Note the special conditions and restrictions for the YIG-preselector described in "YIG- Preselector" on page 55. Parameters: <State> ON | OFF | 0 | 1 *RST: 1 (0 for I/Q Analyzer, GSM, VSA, Pulse, Amplifier,...
Page 192 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement Manual operation: "Radio Frequency State" on page 53 "Digital I/Q Input State" on page 66 "Analog Baseband Input State" on page 68 11.4.2.2 Using External Mixers The commands required to work with external mixers in a remote environment are described here.
Page 193 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement Manual operation: "Bias Settings" on page 60 [SENSe:]MIXer:BIAS[:LOW] <BiasSetting> This command defines the bias current for the low (first) range. This command is only available if the external mixer is active (see [SENSe:]MIXer[: on page 192).
Page 194 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement [SENSe:]MIXer:THReshold <Value> This command defines the maximum permissible level difference between test sweep and reference sweep to be corrected during automatic comparison (see [SENSe: on page 193). ]MIXer:SIGNal Parameters: <Value>...
Page 195 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement Manual operation: "Handover Freq." on page 57 [SENSe:]MIXer:FREQuency:STARt? This command queries the frequency at which the external mixer band starts. Example: MIX:FREQ:STAR? Queries the start frequency of the band.
Page 196 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement Table 11-3: Frequency ranges for pre-defined bands Band Frequency start [GHz] Frequency stop [GHz] KA (A) *) 26.5 40.0 33.0 50.0 40.0 60.0 50.0 75.0 60.0 90.0 75.0 110.0...
Page 197 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement [SENSe:]MIXer:HARMonic:TYPE <OddEven> This command specifies whether the harmonic order to be used should be odd, even, or both. Which harmonics are supported depends on the mixer type. Parameters: <OddEven>...
Page 198 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement Manual operation: "Conversion loss" on page 58 [SENSe:]MIXer:LOSS:TABLe[:LOW] <FileName> This command defines the file name of the conversion loss table to be used for the low (first) range.
Page 199 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement Conversion Loss Table Settings The following settings are required to configure and manage conversion loss tables..................199 [SENSe:]CORRection:CVL:BAND ..................199 [SENSe:]CORRection:CVL:BIAS ................200 [SENSe:]CORRection:CVL:CATAlog? ................... 200 [SENSe:]CORRection:CVL:CLEAr ................200 [SENSe:]CORRection:CVL:COMMent ..................
Page 200 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement Example: CORR:CVL:SEL 'LOSS_TAB_4' Selects the conversion loss table. CORR:CVL:BIAS 3A Manual operation: "Write to <CVL table name>" on page 61 "Bias" on page 64 [SENSe:]CORRection:CVL:CATAlog? This command queries all available conversion loss tables saved in the C:\r_s\instr\user\cvl\ directory on the instrument.
Page 201 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement [SENSe:]CORRection:CVL:DATA <Freq>,<Level> This command defines the reference values of the selected conversion loss tables. The values are entered as a set of frequency/level pairs. A maximum of 50 frequency/ level pairs may be entered.
Page 202 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement Parameters: <Type> string Name of mixer with a maximum of 16 characters Example: CORR:CVL:SEL 'LOSS_TAB_4' Selects the conversion loss table. CORR:CVL:MIX 'FS_Z60' Manual operation: "Mixer Name" on page 64 [SENSe:]CORRection:CVL:PORTs <PortNo>...
Page 203 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement Before this command can be performed, the conversion loss table must be selected (see on page 202). [SENSe:]CORRection:CVL:SELect This command is only available with option B21 (External Mixer) installed.
Page 204 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement //--------- Activating automatic signal identification functions ----------- //Activate both automatic signal identification functions. SENS:MIX:SIGN ALL //Use auto ID threshold of 8 dB. SENS:MIX:THR 8dB //--------------Performing the Measurement----- //Select single sweep mode.
Page 205 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement SENS:MIX:LOSS:HIGH 30dB //Query the possible range SENS:MIX:FREQ:STAR? //Result: 47480000000 (47.48 GHz) SENS:MIX:FREQ:STOP? //Result: 138020000000 (138.02 GHz) //--------------Performing the Measurement----- //Select single sweep mode. INIT:CONT OFF //Initiate a basic frequency sweep and wait until the sweep has finished.
Page 206 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement Parameters: <FastExport> ON | OFF | 1 | 0 ON | 1: Disables the display update for maximum export speed. OFF | 0: Enables the display update. The export is slower.
Page 207 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement Usage: Query only SYSTem:COMMunicate:RDEVice:OSCilloscope:ALIGnment:DATE? Returns the date of alignment of the IF OUT 2 GHZ to the oscilloscope for the optional 2 GHz bandwidth extension (R&S FSW-B2000). Return values: <Date>...
Page 208 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement SYSTem:COMMunicate:RDEVice:OSCilloscope:SRATe <Rate> Determines whether the 10 GHz mode (default) or 20 GHz mode of the connected oscilloscope is used. The 20 GHZ mode achieves a higher decimation gain, but reduces the record length by half.
Page 209 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement Example: SYST:COMM:RDEV:OSC:VDEV? Usage: Query only SYSTem:COMMunicate:RDEVice:OSCilloscope:VFIRmware? Queries whether the firmware on the connected oscilloscope is supported by the 2 GHz bandwidth extension (R&S FSW-B2000) option. Return values: <State>...
Page 210 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement Commands for the Analog Baseband calibration signal are described in the R&S FSW User Manual. Remote commands exclusive to Analog Baseband data input and output ................... 210 INPut:IQ:BALanced[:STATe] ....................210...
Page 211 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement Parameters: <PeakVoltage> 0.25 V | 0.5 V | 1 V | 2 V Peak voltage level at the connector. For probes, the possible full scale values are adapted according to the probe's attenuation and maximum allowed power.
Page 212 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement Parameters: <State> ON | OFF | 1 | 0 ON | 1 The high accuracy timing function is switched on. The cable for high accuracy timing must be connected to trigger ports 1 and 2.
Page 213 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement INPut:DIQ:CDEVice This command queries the current configuration and the status of the digital I/Q input from the optional Digital Baseband Interface. For details see the section "Interface Status Information" for the optional Digital Base- band Interface in the R&S FSW I/Q Analyzer User Manual.
Page 214 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement Example: INP:DIQ:CDEV? Result: 1,SMW200A,101190,BBMM 1 OUT, 100000000,200000000,Passed,Passed,1,1.#QNAN Manual operation: "Connected Instrument" on page 67 INPut:DIQ:RANGe[:UPPer]:AUTO <State> If enabled, the digital input full scale level is automatically set to the value provided by the connected device (if available).
Page 215 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement Parameters: <Level> VOLT | DBM | DBPW | WATT | DBMV | DBUV | DBUA | AMPere *RST: Volt Manual operation: "Full Scale Level" on page 67 INPut:DIQ:SRATe <SampleRate>...
Page 216 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement Suffix: 1 | 2 | 3 Selects the connector: 1 = Baseband Input I 2 = Baseband Input Q 3 = RF (currently not supported; use "1" with RF Input Connec- tor setting "Baseband Input I")
Page 217 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement [SENSe:]PROBe:SETup:MODE <Mode> Select the action that is started with the micro button on the probe head. See also: "Microbutton Action" on page 71. Suffix: 1 | 2 | 3...
Page 218 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement Suffix: 1 | 2 | 3 Selects the connector: 1 = Baseband Input I 2 = Baseband Input Q 3 = RF (currently not supported; use "1" with RF Input Connec- tor setting "Baseband Input I")
Page 219 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement SYSTem:COMMunicate:RDEVice:PMETer:CONFigure:AUTO[:STATe] <State> This command turns automatic assignment of a power sensor to the power sensor index on and off. Suffix: 1...4 Power sensor index Parameters: <State> ON | OFF | 0 | 1...
Page 220 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement <Type> Detected power sensor type, e.g. "NRP-Z81". <Interface> Interface the power sensor is connected to; always "USB" <SerialNo> Serial number of the power sensor assigned to the specified...
Page 221 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement Parameters: ONCE Example: CAL:PMET2:ZERO:AUTO ONCE;*WAI Starts zeroing the power sensor 2 and delays the execution of further commands until zeroing is concluded. Usage: Event Manual operation: "Zeroing Power Sensor"...
Page 222 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement CALCulate<n>:PMETer:RELative:STATe <State> This command turns relative power sensor measurements on and off. Suffix: <n> Window 1...4 Power sensor index Parameters: <State> ON | OFF | 1 | 0...
Page 223 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement Example: PMET2:DCYC:STAT ON Manual operation: "Duty Cycle" on page 86 [SENSe:]PMETer:DCYCle:VALue <Percentage> This command defines the duty cycle for the correction of pulse signals. The power sensor uses the duty cycle in combination with the mean power to calculate the power of the pulse.
Page 224 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement Parameters: <Coupling> CENTer Couples the frequency to the center frequency of the analyzer MARKer1 Couples the frequency to the position of marker 1 Switches the frequency coupling off...
Page 225 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement Example: PMET2:MTIM:AVER ON Activates manual averaging. PMET2:MTIM:AVER:COUN 8 Sets the number of readings to 8. Manual operation: "Average Count (Number of Readings)" on page 86 [SENSe:]PMETer:MTIMe:AVERage[:STATe] <State> This command turns averaging for power sensor measurements on and off.
Page 226 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement Parameters: <State> ON | OFF | 1 | 0 *RST: Example: PMET1 ON Switches the power sensor measurements on. Manual operation: "State" on page 84 "Select" on page 84 [SENSe:]PMETer:UPDate[:STATe] <State>...
Page 227 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement 1...4 Power sensor index Parameters: <Unit> DB | PCT *RST: Example: UNIT:PMET:POW:RAT DB Manual operation: "Unit/Scale" on page 85 Triggering with Power Sensors ................227 [SENSe:]PMETer:TRIGger:DTIMe ................227 [SENSe:]PMETer:TRIGger:HOLDoff ..............
Page 228 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement Manual operation: "Trigger Holdoff" on page 87 [SENSe:]PMETer:TRIGger:HYSTeresis <Hysteresis> This command defines the trigger hysteresis for external power triggers. The hysteresis in dB is the value the input signal must stay below the IF power trigger level in order to allow a trigger to start the measurement.
Page 229 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement Parameters: <Edge> POSitive The measurement starts in case the trigger signal shows a posi- tive edge. NEGative The measurement starts in case the trigger signal shows a neg- ative edge.
Page 230 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement ............231 SOURce:EXTernal:FREQuency[:FACTor]:NUMerator ................231 SOURce:EXTernal:FREQuency:OFFSet .................. 232 SOURce:EXTernal:POWer[:LEVel] .................... 232 SOURce:EXTernal[:STATe] ..............232 SOURce:POWer[:LEVel][:IMMediate]:OFFSet SOURce:EXTernal:FREQuency <Frequency> This command defines a fixed source frequency for the external generator. Parameters: <Frequency>...
Page 231 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement Parameters: <Value> <numeric value> *RST: 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.
Page 232 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement Example: SOUR:EXT:FREQ:OFFS 10HZ Sets an offset of the generator output frequency compared to the analyzer frequency of 10 Hz. Manual operation: "(Automatic) Source Frequency (Numerator/Denominator/ Offset)" on page 75 SOURce:EXTernal:POWer[:LEVel] <Level>...
Page 233 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement ............234 SYSTem:COMMunicate:RDEVice:GENerator:LINK ............234 SYSTem:COMMunicate:RDEVice:GENerator:TYPE .......... 234 SYSTem:COMMunicate:TCPip:RDEVice:GENerator:ADDRess SOURce:EXTernal:ROSCillator[:SOURce] <Source> This command controls selection of the reference oscillator for the external generator. If the external reference oscillator is selected, the reference signal must be connected to the rear panel of the instrument.
Page 234 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement SYSTem:COMMunicate:RDEVice:GENerator:LINK <Type> This command selects the link type of the external generator if the GPIB interface is used. The difference between the two GPIB operating modes is the execution speed. While,...
Page 235 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement Example: SYST:COMM:TCP:RDEV:GEN:ADDR 130.094.122.195 Manual operation: "GPIB Address / TCP/IP Address" on page 73 Source Calibration The following commands are required to activate the calibration functions of the exter- nal tracking generator.
Page 236 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement This command is only available if external generator control is active (see SOURce: on page 232). EXTernal[:STATe] Parameters: <MeasType> THRough "TRANsmission" mode: calibration with direct connection between external generator and device input "REFLection"...
Page 237 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement This command is only available if external generator control is active (see SOURce: on page 232). EXTernal[:STATe] Example: CORR:REC Usage: Event Manual operation: "Recall" on page 77 [SENSe:]CORRection[:STATe] <State>...
Page 238 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement It assumes a signal generator of the type SMW06 is connected to the R&S FSW, including TTL synchronization, as described in Chapter 4.7.4.1, "External Generator Connections", on page 33.
Page 239 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement SOUR:EXT:FREQ:FACT:DEN 2 SOUR:EXT:FREQ:OFFS 100KHZ //--------------Performing the calibration measurement ----------- //Perform a transmission measurement with direct connection between the generator //and the analyzer and wait till the end SENS:CORR:METH TRAN SENS:CORR:COLL:ACQ THR;...
Page 240 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement DIAGnostic:SERVice:NSOurce <State> This command turns the 28 V supply of the BNC connector labeled NOISE SOURCE CONTROL on the R&S FSW on and off. Suffix: <n> Window Parameters: <State>...
Page 241 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement OUTPut:ADEMod[:ONLine]:AF[:CFRequency] <Frequency> This command defines the cutoff frequency for the AC highpass filter (for AC coupling only, see on page 267). [SENSe:]ADEMod<n>:AF:COUPling Parameters: <Frequency> numeric value Range: 10 Hz to DemodBW/10 (= 300 kHz for active...
Page 242 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement 11.4.4 Frequency Settings ..................242 [SENSe:]FREQuency:CENTer ................242 [SENSe:]FREQuency:CENTer:STEP ............... 243 [SENSe:]FREQuency:CENTer:STEP:LINK ............243 [SENSe:]FREQuency:CENTer:STEP:LINK:FACTor [SENSe:]FREQuency:CENTer <Frequency> This command defines the center frequency. Parameters: <Frequency> The allowed range and f is specified in the data sheet.
Page 243 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement [SENSe:]FREQuency:CENTer:STEP:LINK <CouplingType> This command couples and decouples the center frequency step size to the span or the resolution bandwidth. Parameters: <CouplingType> SPAN Couples the step size to the span. Available for measurements in the frequency domain.
Page 244 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement Remote commands exclusive to amplitude configuration: ............244 CALCulate<n>:MARKer<m>:FUNCtion:REFerence ................... 244 CALCulate<n>:UNIT:POWer ......................244 UNIT<n>:POWer ............244 DISPlay[:WINDow<n>]:TRACe<t>:Y[:SCALe]:RLEVel ........... 245 DISPlay[:WINDow<n>]:TRACe<t>:Y[:SCALe]:RLEVel:OFFSet CALCulate<n>:MARKer<m>:FUNCtion:REFerence This command matches the reference level to the power level of a marker.
Page 245 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement Parameters: <ReferenceLevel> The unit is variable. Range: see datasheet *RST: 0 dBm Example: DISP:TRAC:Y:RLEV -60dBm Manual operation: "Reference Level" on page 88 DISPlay[:WINDow<n>]:TRACe<t>:Y[:SCALe]:RLEVel:OFFSet <Offset> This command defines a reference level offset (for all traces in all windows).
Page 246 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement Example: INP:ATT 30dB Defines a 30 dB attenuation and decouples the attenuation from the reference level. Manual operation: "Attenuation Mode / Value" on page 90 INPut:ATTenuation:AUTO <State> This command couples or decouples the attenuation to the reference level. Thus, when the reference level is changed, the R&S FSW determines the signal level for optimal...
Page 247 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement Parameters: <Attenuation> attenuation in dB Range: see data sheet Increment: 1 dB *RST: 0 dB (OFF) Example: INP:EATT:AUTO OFF INP:EATT 10 dB Manual operation: "Using Electronic Attenuation" on page 90 INPut:EATT:AUTO <State>...
Page 248 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement 11.4.5.3 Configuring a Preamplifier ......................248 INPut:GAIN:STATe .......................248 INPut:GAIN[:VALue] INPut:GAIN:STATe <State> This command turns the preamplifier on and off. It requires the optional preamplifier hardware. This function is not available for input from the optional Digital Baseband Interface.
Page 249 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement 11.4.5.4 Scaling the Y-Axis ..............249 DISPlay[:WINDow<n>]:TRACe<t>:Y[:SCALe] ..........249 DISPlay[:WINDow<n>]:TRACe<t>:Y[:SCALe]:AUTO ONCE ............249 DISPlay[:WINDow<n>]:TRACe<t>:Y[:SCALe]:MODE ............ 250 DISPlay[:WINDow<n>]:TRACe<t>:Y[:SCALe]:PDIVision ........... 250 DISPlay[:WINDow<n>]:TRACe<t>:Y[:SCALe]:RPOSition ..............251 DISPlay[:WINDow<n>]:TRACe<t>:Y:SPACing DISPlay[:WINDow<n>]:TRACe<t>:Y[:SCALe] <Range> This command defines the display range of the y-axis (for all traces).
Page 250 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement Parameters: <Mode> ABSolute absolute scaling of the y-axis RELative relative scaling of the y-axis *RST: ABSolute Example: DISP:TRAC:Y:MODE REL Manual operation: "Scaling" on page 123 DISPlay[:WINDow<n>]:TRACe<t>:Y[:SCALe]:PDIVision <Value> This remote command determines the grid spacing on the Y-axis for all diagrams, where possible.
Page 251 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement Manual operation: "Reference Position" on page 78 "Reference Value Position" on page 121 "Ref Level Position" on page 123 DISPlay[:WINDow<n>]:TRACe<t>:Y:SPACing <ScalingType> This command selects the scaling of the y-axis (for all traces, <t> is irrelevant).
Page 252 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement ..........254 [SENSe:]ADEMod<n>:SPECtrum:BANDwidth[:RESolution] ............. 254 [SENSe:]ADEMod<n>:SPECtrum:BWIDth[:RESolution] ..................254 [SENSe:]ADEMod<n>:SRATe? ...................254 [SENSe:]BANDwidth:DEMod ....................254 [SENSe:]BWIDth:DEMod ................. 255 [SENSe:]BANDwidth:DEMod:TYPE ..................255 [SENSe:]BWIDth:DEMod:TYPE ................... 255 [SENSe:]BANDwidth[:RESolution] ....................255 [SENSe:]SWEep:COUNt ....................256 [SENSe:]SWEep:POINts [SENSe:]ADEMod<n>:MTIMe <Time> This command defines the measurement time for analog demodulation.
Page 253 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement Parameters: <SampleRate> numeric value The frequency at which measurement values are taken from the A/D-converter and stored in I/Q memory. Allowed range: refer to Chapter 4.3, "Sample Rate and Demodu- lation Bandwidth",...
Page 254 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement [SENSe:]ADEMod<n>:SPECtrum:BANDwidth[:RESolution] <Bandwidth> [SENSe:]ADEMod<n>:SPECtrum:BWIDth[:RESolution] <Bandwidth> Defines the resolution bandwidth for data acquisition. From the specified RBW and the demodulation span set by [SENSe:]ADEMod<n>: on page 273 or SPECtrum:SPAN[:MAXimum] [SENSe:]BWIDth:DEMod on page 254, the required measurement time is calculated.
Page 255 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement [SENSe:]BANDwidth:DEMod:TYPE <FilterType> [SENSe:]BWIDth:DEMod:TYPE <FilterType> This command defines the type of demodulation filter to be used. This command is identical to SENS:ADEM:BAND:DEM:TYPE: Parameters: <FilterType> FLAT Standard flat demodulation filter...
Page 256 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement Example: SWE:COUN 64 Sets the number of sweeps to 64. INIT:CONT OFF Switches to single sweep mode. INIT;*WAI Starts a sweep and waits for its end. Manual operation: "Sweep / Average Count"...
Page 257 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement ..............261 TRIGger[:SEQuence]:LEVel:AM[:ABSolute] ..................261 TRIGger[:SEQuence]:LEVel:FM ..................261 TRIGger[:SEQuence]:LEVel:PM ..................262 TRIGger[:SEQuence]:SLOPe ..................262 TRIGger[:SEQuence]:SOURce ................264 TRIGger[:SEQuence]:TIME:RINTerval TRIGger[:SEQuence]:BBPower:HOLDoff <Period> This command defines the holding time before the baseband power trigger event.
Page 258 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement TRIGger[:SEQuence]:IFPower:HOLDoff <Period> This command defines the holding time before the next trigger event. Note that this command can be used for any trigger source, not just IF Power (despite the legacy keyword).
Page 259 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement TRIGger[:SEQuence]:LEVel[:EXTernal<port>] <TriggerLevel> This command defines the level the external signal must exceed to cause a trigger event. Note that the variable INPUT/OUTPUT connectors (ports 2+3) must be set for use as input using the command.
Page 260 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement Manual operation: "Trigger Level" on page 101 TRIGger[:SEQuence]:OSCilloscope:COUPling <CoupType> Configures the coupling of the external trigger to the oscilloscope. Parameters: <CoupType> Coupling type Direct connection with 50 Ω termination, passes both DC and AC components of the trigger signal.
Page 261 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement Manual operation: "Trigger Level" on page 101 TRIGger[:SEQuence]:LEVel:AM[:ABSolute] <Level> The command sets the level when RF power signals are used as trigger source. For triggering to be successful, the measurement time must cover at least 5 periods of the audio signal.
Page 262 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement TRIGger[:SEQuence]:SLOPe <Type> For all trigger sources except time you can define whether triggering occurs when the signal rises to the trigger level or falls down to it. Parameters: <Type>...
Page 263 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement Parameters: <Source> IMMediate Free Run EXTernal Trigger signal from the TRIGGER INPUT connector. If the optional 2 GHz bandwidth extension (R&S FSW-B2000) is installed and active, this parameter activates the CH3 input con- nector on the oscilloscope.
Page 264 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement FM power signal corresponds to the RF power signal AMRelative corresponds to the AM signal PM power signal GP0 | GP1 | GP2 | GP3 | GP4 | GP5...
Page 265 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement 11.4.7.2 Configuring the Trigger Output The following commands are required to send the trigger signal to one of the variable TRIGGER INPUT/OUTPUT connectors on the R&S FSW..................265 OUTPut:TRIGger<port>:DIRection...
Page 266 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement OUTPut:TRIGger<port>:OTYPe <OutputType> This command selects the type of signal generated at the trigger output. Note: For offline AF or RF triggers, no output signal is provided. Suffix: <port>...
Page 267 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement 11.4.8 Configuring Demodulation The following remote commands are required to configure the demodulation parame- ters in a remote environment. The tasks for manual operation are described in Chap- ter 5.7,...
Page 268 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement [SENSe:]ADEMod<n>:PM:RPOint[:X] <Time> This command determines the position where the phase of the PM-demodulated signal is set to 0 rad. The maximum possible value depends on the measurement time selected in the instrument;...
Page 269 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement Example: DEM:SQU:LEV -80 If the signal drops below -80 dBm, the demodulated data is set to 0. Manual operation: "Squelch Level" on page 111 11.4.8.2 Time Domain Zoom Settings Using the time domain zoom, the demodulated data for a particular time span is extrac- ted and displayed in more detail.
Page 270 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement Example: ADEM:ZOOM:LENG:MODE MAN Zoom function uses the length defined manually. Manual operation: "Length" on page 112 [SENSe:]ADEMod<n>:ZOOM:STARt <Time> The command selects the start time for the zoomed display of analog-demodulated measurements in the specified window.
Page 271 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement 11.4.8.3 Configuring the Demodulation Spectrum The demodulation spectrum defines which span of the demodulated data is evaluated. ● evaluation......................271 ● evaluation......................272 AF evaluation These settings are only available for AF Spectrum evaluations, not in the time domain.
Page 272 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement Suffix: <n> irrelevant Example: ADEM:BAND 5 MHz Sets the demodulation bandwidth to 5 MHz ADEM:AF:SPAN:FULL Sets the AF span to 2.5 MHz Manual operation: "AF Full Span" on page 114 [SENSe:]ADEMod<n>:AF:STARt <Frequency>...
Page 273 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement Specific commands: ..............273 [SENSe:]ADEMod<n>:SPECtrum:SPAN:ZOOM ............273 [SENSe:]ADEMod<n>:SPECtrum:SPAN[:MAXimum] [SENSe:]ADEMod<n>:SPECtrum:SPAN:ZOOM This command sets the span (around the center frequency) for RF spectrum result dis- play. The span is limited to the demodulation bandwidth (see [SENSe:]BWIDth:DEMod on page 254).
Page 274 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement ................277 [SENSe:]FILTer<n>:HPASs[:STATe] ............277 [SENSe:]FILTer<n>:LPASs:FREQuency[:ABSolute] .............. 277 [SENSe:]FILTer<n>:LPASs:FREQuency:MANual ............278 [SENSe:]FILTer<n>:LPASs:FREQuency:RELative ................278 [SENSe:]FILTer<n>:LPASs[:STATe] [SENSe:]FILTer<n>:AWEighted[:STATe] <State> This command activates/deactivates the "A" weighting filter for the specified evalua- tion.
Page 275 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement [SENSe:]FILTer<n>:CCIR:[:UNWeighted][:STATe] <State> This command activates/deactivates the unweighted CCIR filter in the specified win- dow. For details on weighting filters see "Weighting" on page 118. Suffix: <n> Window Parameters: <State>...
Page 276 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement [SENSe:]FILTer<n>:DEMPhasis[:STATe] <State> This command activates/deactivates the selected deemphasis for the specified evalua- tion. For details about deemphasis refer to "Deemphasis" on page 119. Suffix: <n> Window Parameters: <State>...
Page 277 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement Example: FILT:HPAS:FREQ:MAN 3MHz The AF results are restricted to frequencies lower than 3 MHz. Manual operation: "High Pass" on page 117 [SENSe:]FILTer<n>:HPASs[:STATe] <State> This command activates/deactivates the selected high pass filter for the specified eval- uation.
Page 278 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement Parameters: <Frequency> numeric value Range: 0 to 3 MHz *RST: 15kHz Example: FILT:LPAS:FREQ:MAN 150kHz The AF results are restricted to frequencies lower than 150 kHz. Manual operation: "Low Pass"...
Page 279 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement 11.4.8.6 Scaling for AF Evaluation These settings are only available for AF evaluations. Useful commands described elsewhere: ● on page 286 [SENSe:]ADJust:SCALe[:Y]:AUTO[:CONTinuous] ● on page 267 [SENSe:]ADEMod<n>:AF:COUPling ●...
Page 280 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement This command is identical to CALC:UNIT:ANGL Suffix: <n> Window Parameters: <Unit> DEG | RAD *RST: Example: UNIT:ANGL DEG Manual operation: "Phase Unit (Rad/Deg)" on page 124 UNIT<n>:THD <Mode>...
Page 281 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement A reference value 0 would provide infinite results and is thus automatically corrected to 0.1. Suffix: <det> 1: Positive peak; 2: Negative peak; 3: Average of positive and negative peaks (+/-PK/2);...
Page 282 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement CONFigure:ADEMod:RESults:AM:DETector<det>:REFerence:MEAStoref CONFigure:ADEMod:RESults:FM:DETector<det>:REFerence:MEAStoref CONFigure:ADEMod:RESults:PM:DETector<det>:REFerence:MEAStoref Sets the reference value to be used for relative demodulation results to the currently measured value for all relative detectors. If necessary, the detectors are activated.
Page 283 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement Parameters: <Unit> PCT | DB *RST: Example: CONF:ADEM:RES:AM:DET2:STAT ON Activates relative demodulation for the negative peak detector. CONF:ADEM:RES:AM:DET2:MODE AVER Sets the negative peak detector to average mode. CONF:ADEM:RES:UNIT PCT Defines the unit for relative values as percent.
Page 284 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement Manual operation: "Adjusting all Determinable Settings Automatically (Auto All)" on page 130 [SENSe:]ADJust:CONFigure:DURation <Duration> In order to determine the ideal reference level, the R&S FSW performs a measurement on the current input data.
Page 285 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement [SENSe:]ADJust:CONFigure:HYSTeresis:LOWer <Threshold> When the reference level is adjusted automatically using the [SENSe:]ADJust: on page 286 command, the internal attenuators and the preamplifier are also LEVel adjusted. In order to avoid frequent adaptation due to small changes in the input signal, you can define a hysteresis.
Page 286 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement Parameters: <State> ON | 1 The measurement for automatic adjustment waits for the trigger. OFF | 0 The measurement for automatic adjustment is performed imme- diately, without waiting for a trigger.
Page 287 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement 11.4.10 Configuring Standard Traces Useful commands for trace configuration described elsewhere ● on page 251 DISPlay[:WINDow<n>]:TRACe<t>:Y:SPACing ● on page 249 DISPlay[:WINDow<n>]:TRACe<t>:Y[:SCALe] Remote commands exclusive to trace configuration .................287 DISPlay[:WINDow<n>]:TRACe<t>:MODE...
Page 288 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement Parameters: <Mode> WRITe Overwrite mode: the trace is overwritten by each sweep. This is the default setting. AVERage The average is formed over several sweeps. The "Sweep/Aver- age Count" determines the number of averaging procedures.
Page 289 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement Parameters: <State> ON | 1 The automatic reset is off. OFF | 0 The automatic reset is on. *RST: Example: DISP:WIND:TRAC3:MODE:HCON ON Switches off the reset function. Manual operation: "Hold"...
Page 290 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement [SENSe:]ADEMod<n>:FM:AFSPectrum[:TYPE] [SENSe:]ADEMod<n>:PM[:TDOMain][:TYPE] [SENSe:]ADEMod<n>:PM:AFSPectrum[:TYPE] [SENSe:]ADEMod<n>:SPECtrum[:TYPE] <TraceMode1>, <TraceMode2>, <TraceMode3>, <TraceMode4>, <TraceMode5>, <TraceMode6> This command selects the trace modes of the evaluated signal to be measured simul- taneously. For each of the six available traces a mode can be defined.
Page 291 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement Parameters: <TraceMode> WRITe Overwrite mode: the trace is overwritten by each sweep. This is the default setting. AVERage The average is formed over several sweeps. Sweep / Average Count determines the number of averag- ing procedures.
Page 292 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement Parameters: <AverageCount> If you set an average count of 0 or 1, the application performs one single sweep in single sweep mode. In continuous sweep mode, if the average count is set to 0, a moving average over 10 sweeps is performed.
Page 293 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Measurement Suffix: <n> Window <t> Trace Parameters: <Detector> APEak Autopeak NEGative Negative peak POSitive Positive peak SAMPle First value detected per trace point RMS value AVERage Average *RST: APEak...
Page 294: Capturing Data And Performing Sweeps
® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Capturing Data and Performing Sweeps 11.5 Capturing Data and Performing Sweeps MSRA/MSRT operating mode Note that in MSRA/MSRT operating mode, capturing data is only possible for the MSRA/MSRT Master channel. In Analog Demodulation application channels, the sweep configuration commands define the analysis interval.
Page 295 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Capturing Data and Performing Sweeps Example: ABOR;:INIT:IMM Aborts the current measurement and immediately starts a new one. Example: ABOR;*WAI INIT:IMM Aborts the current measurement and starts a new one once abortion has been completed.
Page 296 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Capturing Data and Performing Sweeps Parameters: <State> ON | OFF | 0 | 1 ON | 1 Continuous sweep OFF | 0 Single sweep *RST: Example: INIT:CONT OFF Switches the sweep mode to single sweep.
Page 297 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Capturing Data and Performing Sweeps Example: SYST:SEQ:OFF Deactivates the scheduler INIT:CONT OFF Switches to single sweep mode. INIT;*WAI Starts a new data measurement and waits for the end of the sweep.
Page 298 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Capturing Data and Performing Sweeps INITiate<n>:SEQuencer:MODE <Mode> This command selects the way the R&S FSW application performs measurements sequentially. Before this command can be executed, the Sequencer must be activated (see on page 299).
Page 299: Configuring The Result Display
® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Result Display Example: SYST:SEQ:OFF Deactivates the scheduler INIT:CONT OFF Switches to single sweep mode. INIT;*WAI Starts a new data measurement and waits for the end of the sweep. INIT:SEQ:REFR Refreshes the display for all channels.
Page 300 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Result Display 11.6.1 General Window Commands The following commands are required to configure general window layout, independent of the application. Note that the suffix <n> always refers to the window in the currently selected measure- ment channel (see on page 186).
Page 301 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Result Display some parameters for the following commands also depend on the selected measure- ment channel. Note that the suffix <n> always refers to the window in the currently selected measure- ment channel (see on page 186).
Page 302 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Result Display Manual operation: "AM Time Domain" on page 13 "FM Time Domain" on page 14 "PM Time Domain" on page 15 "AM Spectrum" on page 16 "FM Spectrum"...
Page 303 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Result Display Example: LAY:CAT? Result: '2',2,'1',1 Two windows are displayed, named '2' (at the top or left), and '1' (at the bottom or right). Usage: Query only LAYout:IDENtify[:WINDow]? <WindowName>...
Page 304 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Result Display Parameters: <WindowName> String containing the name of the existing window. By default, the name of a window is the same as its index. To determine the name and index of all active windows in the active...
Page 305 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Result Display <Position> New vertical or horizontal position of the splitter as a fraction of the screen area (without channel and status bar and softkey menu). The point of origin (x = 0, y = 0) is in the lower left corner of the screen.
Page 306 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Configuring the Result Display Example: LAY:WIND1:ADD? LEFT,MTAB Result: Adds a new window named '2' with a marker table to the left of window 1. Usage: Query only LAYout:WINDow<n>:IDENtify? This command queries the name of a particular display window (indicated by the <n>...
Page 307: Retrieving Results
® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Retrieving Results Suffix: <n> Window Parameters: <WindowType> Type of measurement window you want to replace another one with. on page 301 for a list of availa- LAYout:ADD[:WINDow]? ble window types. Example: LAY:WIND2:REPL MTAB Replaces the result display in window 2 with a marker table.
Page 308 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Retrieving Results [SENSe:]ADEMod<n>:AM:RELative:AFSPectrum:RESult? <TraceMode> [SENSe:]ADEMod<n>:FM[:TDOMain]:RESult? <TraceMode> [SENSe:]ADEMod<n>:FM:AFSPectrum:RESult? <TraceMode> [SENSe:]ADEMod<n>:PM[:TDOMain]:RESult? <TraceMode> [SENSe:]ADEMod<n>:PM:AFSPectrum:RESult? <TraceMode> [SENSe:]ADEMod<n>:SPECtrum:RESult? <TraceMode> This command reads the result data of the evaluated signal in the specified trace mode. The data format of the output data block is defined by the FORMat command (see on page 309).
Page 309 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Retrieving Results Usage: Query only FORMat[:DATA] <Format> This command selects the data format that is used for transmission of trace data from the R&S FSW to the controlling computer. Note that the command has no effect for data that you send to the R&S FSW. The R&S FSW automatically recognizes the data it receives, regardless of the format.
Page 310 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Retrieving Results Example: TRAC? TRACE3 Queries the data of trace 3. 11.7.2 Exporting Trace Results Trace results can be exported to a file. For more commands concerning data and results storage see the R&S FSW User Manual.
Page 311 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Retrieving Results Parameters: <Separator> COMMa Uses a comma as decimal separator, e.g. 4,05. POINt Uses a point as decimal separator, e.g. 4.05. *RST: *RST has no effect on the decimal separator.
Page 312 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Retrieving Results 11.7.3 Retrieving Result Summary Values The result summary contains measurement values that are calculated from the trace data. For details see "Result Summary" on page 21......312 CALCulate<n>:MARKer<m>:FUNCtion:ADEMod:AFRequency[:RESult]? ........
Page 313 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Retrieving Results Query parameters: <MeasType> PPEak | MPEak | MIDDle | RMS PPEak Postive peak (+PK) MPEak | NPEak Negative peak (-PK) MIDDle Average of positive and negative peaks ±PK/2 Root mean square value...
Page 314 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Retrieving Results Example: CALC:FEED 'XTIM:PM:TDOM' Switches on the PM time domain result display. DISP:TRAC ON Switches on the trace. CALC:MARK:FUNC:ADEM:PM? PPE Queries the peak value of the demodulated PM trace. Usage:...
Page 315 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Retrieving Results Suffix: <n> Window <t> Trace <m> irrelevant Parameters: <SINAD> The signal-to-noise-and-distortion ratio in dB. Usage: Query only CALCulate<n>:MARKer<m>:FUNCtion:ADEMod:THD:RESult<t>? This command queries the result of the total harmonic distortion (THD) measurement in the specified window.
Page 316 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Retrieving Results Query parameters: <ResultType> IMMediate | AVERage IMMediate The current measurement results are used to calculate the FM offset AVERage The measurement results that were averaged over the given number of measurements are used to calculate the FM offset If no average measurement was active during the last measure- ment sequence only the [SENSe:]ADEMod<n>:FM:OFFSet?
Page 317 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Retrieving Results Reading out data in binary format is quicker than in ASCII format. Thus, binary format is recommended for large amounts of data. 11.7.5 Reference: ASCII File Export Format Trace data can be exported to a file in ASCII format for further evaluation in other applications.
Page 318 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Retrieving Results File contents Description Level Offset;0;dB Level offset Rf Att;20;dB Input attenuation El Att;2.0;dB Electrical attenuation RBW;100000;Hz Resolution bandwidth VBW;30000;Hz Video bandwidth SWT;0.005;s Sweep time Sweep Count;20; Number of sweeps set Ref Position;75;%...
Page 319: Analyzing Results
® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Analyzing Results 11.8 Analyzing Results The following remote commands are required to configure general result analysis set- tings concerning the trace, markers, lines etc. in a remote environment. They are iden- tical to the analysis functions in the base unit except for some special marker functions and spectrograms, which are not available in the Analog Demodulation application.
Page 320 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Analyzing Results CALCulate<n>:MARKer<m>:AOFF This command turns off all markers. Suffix: <n> Window <m> Marker Example: CALC:MARK:AOFF Switches off all markers. Usage: Event Manual operation: "All Markers Off" on page 141 CALCulate<n>:MARKer<m>:LINK:TO:MARKer<m> <State>...
Page 321 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Analyzing Results Manual operation: "Marker State" on page 139 "Marker Type" on page 140 "Select Marker" on page 144 CALCulate<n>:MARKer<m>:TRACe <Trace> This command selects the trace the marker is positioned on.
Page 322 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Analyzing Results CALCulate<n>:MARKer<m>:Y? This command queries the position of a marker on the y-axis. If necessary, the command activates the marker first. To get a valid result, you have to perform a complete measurement with synchroniza- tion to the end of the measurement before reading out the result.
Page 323 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Analyzing Results Example: CALC:DELT:AOFF Turns off all delta markers. Usage: Event CALCulate<n>:DELTamarker<m>:LINK <State> This command links delta marker <m> to marker 1. If you change the horizontal position (x-value) of marker 1, delta marker <m> changes its horizontal position to the same value.
Page 324 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Analyzing Results Suffix: <n> Window <m> irrelevant Parameters: <Mode> ABSolute Delta marker position in absolute terms. RELative Delta marker position in relation to a reference marker. *RST: RELative Example: CALC:DELT:MODE ABS Absolute delta marker position.
Page 325 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Analyzing Results Example: CALC:DELT2 ON Turns on delta marker 2. Manual operation: "Marker State" on page 139 "Marker Type" on page 140 "Select Marker" on page 144 CALCulate<n>:DELTamarker<m>:TRACe <Trace> This command selects the trace a delta marker is positioned on.
Page 326 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Analyzing Results CALCulate<n>:DELTamarker<m>:X:RELative? This command queries the relative position of a delta marker on the x-axis. If necessary, the command activates the delta marker first. Suffix: <n> Window <m> Marker Return values: <Position>...
Page 327 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Analyzing Results Example: INIT:CONT OFF Switches to single sweep mode. INIT;*WAI Starts a sweep and waits for its end. CALC:DELT2 ON Switches on delta marker 2. CALC:DELT2:Y? Outputs measurement value of delta marker 2.
Page 328 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Analyzing Results Parameters: <DisplayType> TIME | SPECtrum | BOTH | NONE TIME Links the markers in all time domain diagrams SPECtrum Links the markers in all AF Spectrum displays BOTH Links the markers both in the time domain diagrams and in the...
Page 329 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Analyzing Results 11.8.1.3 Marker Search (Spectrograms) The following commands automatically define the marker and delta marker position in the spectrogram. Using Markers The following commands control spectrogram markers. Useful commands for spectrogram markers described elsewhere The following commands define the horizontal position of the markers.
Page 330 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Analyzing Results CALCulate<n>:MARKer<m>:SGRam:FRAMe <Frame> | <Time> CALCulate<n>:MARKer<m>:SPECtrogram:FRAMe <Frame> | <Time> This command positions a marker on a particular frame. Suffix: <n> Window <m> Marker Parameters: <Frame> Selects a frame directly by the frame number. Valid if the time stamp is off.
Page 331 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Analyzing Results CALCulate<n>:MARKer<m>:SGRam:XY:MINimum[:PEAK] CALCulate<n>:MARKer<m>:SPECtrogram:XY:MINimum[:PEAK] This command moves a marker to the minimum level of the spectrogram. Suffix: <n> Window <m> Marker Usage: Event CALCulate<n>:MARKer<m>:SGRam:Y:MAXimum:ABOVe CALCulate<n>:MARKer<m>:SPECtrogram:Y:MAXimum:ABOVe This command moves a marker vertically to the next lower peak level for the current frequency.
Page 332 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Analyzing Results <m> Marker Usage: Event CALCulate<n>:MARKer<m>:SGRam:Y:MAXimum[:PEAK] CALCulate<n>:MARKer<m>:SPECtrogram:Y:MAXimum[:PEAK] This command moves a marker vertically to the highest level for the current frequency. The search includes all frames. It does not change the horizontal position of the marker.
Page 333 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Analyzing Results CALCulate<n>:MARKer<m>:SGRam:Y:MINimum:NEXT CALCulate<n>:MARKer<m>:SPECtrogram:Y:MINimum:NEXT This command moves a marker vertically to the next higher minimum level for the cur- rent frequency. The search includes all frames. It does not change the horizontal position of the marker.
Page 334 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Analyzing Results Remote commands exclusive to spectrogram markers ............334 CALCulate<n>:DELTamarker<m>:SGRam:FRAMe ...........334 CALCulate<n>:DELTamarker<m>:SPECtrogram:FRAMe ............335 CALCulate<n>:DELTamarker<m>:SGRam:SARea ........... 335 CALCulate<n>:DELTamarker<m>:SPECtrogram:SARea ........335 CALCulate<n>:DELTamarker<m>:SGRam:XY:MAXimum[:PEAK] ......335 CALCulate<n>:DELTamarker<m>:SPECtrogram:XY:MAXimum[:PEAK] ........335 CALCulate<n>:DELTamarker<m>:SGRam:XY:MINimum[:PEAK] ....... 335 CALCulate<n>:DELTamarker<m>:SPECtrogram:XY:MINimum[:PEAK] ........335 CALCulate<n>:DELTamarker<m>:SGRam:Y:MAXimum:ABOVe ........
Page 335 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Analyzing Results CALCulate<n>:DELTamarker<m>:SGRam:SARea <SearchArea> CALCulate<n>:DELTamarker<m>:SPECtrogram:SARea <SearchArea> This command defines the marker search area for all spectrogram markers in the mea- surement channel. Suffix: <n>, <m> irrelevant Parameters: <SearchArea> VISible Performs a search within the visible frames.
Page 336 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Analyzing Results Suffix: <n> Window <m> Marker Usage: Event CALCulate<n>:DELTamarker<m>:SGRam:Y:MAXimum:BELow CALCulate<n>:DELTamarker<m>:SPECtrogram:Y:MAXimum:BELow This command moves a marker vertically to the next higher level for the current fre- quency. The search includes only frames below the current marker position. It does not change the horizontal position of the marker.
Page 337 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Analyzing Results CALCulate<n>:DELTamarker<m>:SGRam:Y:MINimum:ABOVe CALCulate<n>:DELTamarker<m>:SPECtrogram:Y:MINimum:ABOVe This command moves a delta marker vertically to the next minimum level for the cur- rent frequency. The search includes only frames above the current marker position. It does not change the horizontal position of the marker.
Page 338 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Analyzing Results If the marker hasn't been active yet, the command first looks for the peak level in the whole spectrogram and moves the marker vertically to the minimum level. Suffix: <n>...
Page 339 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Analyzing Results 11.8.1.5 Positioning the Marker This chapter contains remote commands necessary to position the marker on a trace. ● Positioning Normal Markers ................. 339 ● Positioning Delta Markers..................341 Positioning Normal Markers The following commands position markers on the trace.
Page 340 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Analyzing Results Suffix: <n> Window <m> Marker Usage: Event Manual operation: "Peak Search" on page 144 CALCulate<n>:MARKer<m>:MAXimum:RIGHt This command moves a marker to the next lower peak. The search includes only measurement values to the right of the current marker posi- tion.
Page 341 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Analyzing Results CALCulate<n>:MARKer<m>:MINimum[:PEAK] This command moves a marker to the minimum level. If the marker is not yet active, the command first activates the marker. Suffix: <n> Window <m> Marker Usage:...
Page 342 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Analyzing Results Manual operation: "Search Next Peak" on page 144 CALCulate<n>:DELTamarker<m>:MAXimum:NEXT This command moves a marker to the next higher value. Suffix: <n> Window <m> Marker Usage: Event Manual operation: "Search Next Peak"...
Page 343 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Analyzing Results <m> Marker Usage: Event Manual operation: "Search Next Minimum" on page 145 CALCulate<n>:DELTamarker<m>:MINimum:NEXT This command moves a marker to the next higher minimum value. Suffix: <n> Window <m> Marker...
Page 344 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Analyzing Results ● Fixed Reference Marker Settings................344 ● Marker Peak Lists....................346 ● n dB Down Marker....................350 ● Phase Noise Measurement Marker...............353 Fixed Reference Marker Settings The following commands configure a fixed reference marker.
Page 345 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Analyzing Results CALCulate<n>:DELTamarker<m>:FUNCtion:FIXed:RPOint:Y <RefPointLevel> This command defines the vertical position of the fixed delta marker reference point. The coordinates of the reference may be anywhere in the diagram. Suffix: <n> Window <m>...
Page 346 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Analyzing Results Example: CALC:DELT:FUNC:FIX ON Switches on the measurement with fixed reference value for all delta markers. CALC:DELT:FUNC:FIX:RPO:X 128 MHZ Sets the frequency reference to 128 MHz. CALC:DELT:FUNC:FIX:RPO:Y 30 DBM Sets the reference level to +30 dBm.
Page 347 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Analyzing Results CALCulate<n>:MARKer<m>:FUNCtion:FPEaks:COUNt? This command queries the number of peaks that have been found during a peak search. The actual number of peaks that have been found may differ from the number of peaks you have set to be found because of the peak excursion.
Page 348 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Analyzing Results Parameters: <MaxNoPeaks> Maximum number of peaks to be determined. Range: 1 to 200 *RST: Example: CALC:MARK:FUNC:FPE:LIST:SIZE 10 The marker peak list will contain a maximum of 10 peaks. Manual operation: "Maximum Number of Peaks"...
Page 349 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Analyzing Results The order depends on the sort order that has been set with CALCulate<n>: MARKer<m>:FUNCtion:FPEaks:SORT. Suffix: <n>, <m> irrelevant Return values: <PeakPosition> Position of the peaks on the x-axis. The unit depends on the measurement.
Page 350 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Analyzing Results MMEMory:STORe<n>:PEAK <FileName> This command exports the marker peak list to a file. Secure User Mode In secure user mode, settings that are stored on the instrument are stored to volatile memory, which is restricted to 256 MB.
Page 351 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Analyzing Results Parameters: <Distance> Distance of the temporary markers to the reference marker in For a positive offset, the markers T1 and T2 are placed below the active reference point. For a negative offset (for example for notch filter measure- ments), the markers T1 and T2 are placed above the active ref- erence point.
Page 352 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Analyzing Results CALCulate<n>:MARKer<m>:FUNCtion:NDBDown:QFACtor? This command queries the Q factor of n dB down measurements. Suffix: <n>, <m> irrelevant Return values: <QFactor> Usage: Query only CALCulate<n>:MARKer<m>:FUNCtion:NDBDown:RESult? This command queries the distance of the n dB down markers from each other.
Page 353 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Analyzing Results Parameters: <State> ON | OFF | 1 | 0 *RST: Example: CALC:MARK:FUNC:NDBD:STAT ON Turns the n dB Down marker on. Manual operation: "n dB down Marker State" on page 154 CALCulate<n>:MARKer<m>:FUNCtion:NDBDown:TIME?
Page 354 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Analyzing Results Suffix: <n> Window <m> Marker Parameters: <State> ON | OFF | 1 | 0 *RST: Example: CALC:MARK2:FUNC:PNO ON Switches on the phase-noise measurement for the marker 2. Manual operation: "Phase Noise Measurement State"...
Page 355 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Analyzing Results 11.8.2.1 Configuring Limit Lines .................. 355 CALCulate<n>:LIMit<k>:COMMent .................355 CALCulate<n>:LIMit<k>:CONTrol[:DATA] ............... 356 CALCulate<n>:LIMit<k>:CONTrol:DOMain ................. 356 CALCulate<n>:LIMit<k>:CONTrol:MODE ................356 CALCulate<n>:LIMit<k>:CONTrol:OFFSet ................357 CALCulate<n>:LIMit<k>:CONTrol:SHIFt ..............357 CALCulate<n>:LIMit<k>:CONTrol:SPACing ................357 CALCulate<n>:LIMit<k>:LOWer[:DATA] ................. 358 CALCulate<n>:LIMit<k>:LOWer:MARGin ................358 CALCulate<n>:LIMit<k>:LOWer:MODE...
Page 356 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Analyzing Results Parameters: <LimitLinePoints> Variable number of x-axis values. Note that the number of horizontal values has to be the same as the number of vertical values set with CALCulate<n>: LIMit<k>:LOWer[:DATA] CALCulate<n>:LIMit<k>:...
Page 357 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Analyzing Results Suffix: <n> irrelevant <k> Limit line Parameters: <Offset> Numeric value. The unit depends on the scale of the x-axis. *RST: Manual operation: "X-Offset" on page 156 CALCulate<n>:LIMit<k>:CONTrol:SHIFt <Distance> This command moves a complete limit line horizontally.
Page 358 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Analyzing Results Parameters: <LimitLinePoints> Variable number of level values. Note that the number of vertical values has to be the same as the number of horizontal values set with CALCulate<n>: LIMit<k>:CONTrol[:DATA]. If not, the R&S FSW either adds missing values or ignores surplus values.
Page 359 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Analyzing Results Compared to shifting the limit line, an offset does not actually change the limit line defi- nition points. Suffix: <n> Window <k> Limit line Parameters: <Offset> Numeric value. *RST:...
Page 360 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Analyzing Results Before you can use the command, you have to select a limit line with CALCulate<n>: on page 360. LIMit<k>:NAME Suffix: <n> irrelevant <k> Limit line Parameters: <State> ON | OFF | 1 | 0...
Page 361 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Analyzing Results Suffix: <n> irrelevant <k> Limit line Parameters: <Unit> If you select dB as the limit line unit, the command automatically turns the limit line into a relative limit line.
Page 362 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Analyzing Results Suffix: <n> Window <k> Limit line Parameters: <Mode> ABSolute Limit line is defined by absolute physical values. The unit is variable. RELative Limit line is defined by relative values related to the reference level (dB).
Page 363 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Analyzing Results CALCulate<n>:LIMit<k>:UPPer:SPACing <InterpolType> This command selects linear or logarithmic interpolation for the calculation of an upper limit line from one horizontal point to the next. Suffix: <n> Window <k> Limit line Parameters: <InterpolType>...
Page 364 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Analyzing Results 11.8.2.2 Managing Limit Lines Useful commands for managing limit lines described in the R&S FSW User Manual: ● MMEM:SEL[:ITEM]:LIN:ALL ● MMEM:STOR:TYPE ● MMEM:LOAD:TYPE Remote commands exclusive to managing limit lines: ..................
Page 365 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Analyzing Results Example: CALC:LIM1:COPY 2 Copies limit line 1 to line 2. CALC:LIM1:COPY 'FM2' Copies limit line 1 to a new line named FM2. Manual operation: "Copy Line" on page 157 CALCulate<n>:LIMit<k>:DELete...
Page 366 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Analyzing Results ● on page 365 CALCulate<n>:LIMit<k>:STATe Suffix: <n> Window <k> Limit line <t> Trace Parameters: <State> ON | OFF | 1 | 0 *RST: Example: CALC:LIM3:TRAC2:CHEC ON Switches on the limit check for limit line 3 on trace 2.
Page 367 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Analyzing Results CALCulate<n>:LIMit<k>:CLEar[:IMMediate] This command deletes the result of the current limit check. The command works on all limit lines in all measurement windows at the same time. Suffix: <n>, <k>...
Page 368 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Analyzing Results //Names limit line 1 'FM1'. CALC:LIM1:CONT:MODE ABS //Selects absolute scaling for the horizontal axis. CALC:LIM1:CONT 1 MHz,50MHz,100 MHz,150MHz,200MHz //Defines 5 horizontal definition points for limit line 1. CALC:LIM1:UPP:MODE ABS //Selects an absolute vertical scale for limit line 1.
Page 369 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Analyzing Results MMEM:STOR:TYPE CHAN MMEM:STOR:STAT 1,'LimitLines_FM1_FM3' Example: Performing a Limit Check This example demonstrates how to perform a limit check during a basic frequency sweep measurement in a remote environment. The limit lines configured in "Example:...
Page 370 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Analyzing Results CALC:LIM3:TRAC2:CHEC ON //Activates the upper limit to be checked against trace2 (average trace) CALC:LIM:CLE //Clears the previous limit check results //------------- Performing the measurement--------------------- INIT;*WAI //Initiates a new measurement and waits until the last sweep has finished.
Page 371 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Analyzing Results Note: even if the analysis line display is off, the indication whether or not the currently defined line position lies within the analysis interval of the active slave application remains in the window title bars.
Page 372 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Analyzing Results Parameters: <Offset> This parameter defines the time offset between the capture buf- fer start and the start of the extracted slave application data. The offset must be a positive value, as the slave application can only analyze data that is contained in the capture buffer.
Page 373 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Analyzing Results Parameters: <State> ON | OFF | 1 | 0 *RST: Manual operation: "Show Line" on page 161 CALCulate<n>:RTMS:ALINe[:VALue] <Position> This command defines the position of the analysis line for all time-based windows in all MSRT slave applications and the MSRT Master.
Page 374: Importing And Exporting I/Q Data And Results
® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Importing and Exporting I/Q Data and Results Manual operation: "Capture Offset" on page 106 11.9 Importing and Exporting I/Q Data and Results The I/Q data to be evaluated in the Analog Demodulation application can not only be measured by the Analog Demodulation application itself, it can also be imported to the application, provided it has the correct format.
Page 375: Deprecated Commands
® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Deprecated Commands Parameters: <Format> FLOat32 32-bit floating point format. *RST: FLOat32 <DataFormat> COMPlex Exports complex data. *RST: COMPlex Usage: Query only MMEMory:STORe<n>:IQ:STATe 1, <FileName> This command writes the captured I/Q data to a file.
Page 376: Programming Example
® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Programming Example CALCulate<n>:FEED <Evaluation> This command selects the evaluation method of the measured data that is to be dis- played in the specified window. Note that this command is maintained for compatibility reasons only. Use the LAYout commands for new remote control programs (see Chapter 11.6.2, "Working with Win-...
Page 377 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Programming Example Signal generator settings (e.g. R&S SMW): Frequency: 500 MHz Level: -10 dBm Modulation: Modulation frequency: 10 kHz Frequency deviation: 50 kHz //-----------Preparing the measurement ------------ *RST //Reset the instrument...
Page 378 ® Remote Commands for Analog Demodulation Measurements R&S FSW-K7 Programming Example INIT:CONT OFF //Stop continuous sweep INIT;*WAI //Start a new measurement with 30 sweeps and wait for the end //---------------Retrieving Results------------- CALC:MARK:FUNC:ADEM:CARR? //Queries the carrier power //Result: -10.37 [dBm] CALC2:MARK:FUNC:ADEM:SIN:RES? //Queries the signal-to-noise-and-distortion ratio from the FM Spectrum //Result: 65.026 [dB]...
Page 379: Annex
® Reference R&S FSW-K7 Predefined Standards and Settings Annex A Reference A.1 Predefined Standards and Settings You can configure the Analog Demodulation application using predefined standard set- tings. This allows for quick and easy configuration for commonly performed measure- ments.
Page 380 ® Reference R&S FSW-K7 Predefined Standards and Settings ● Window type (all evaluation methods supported by the Analog Demodulation appli- cation; see Chapter 3, "Measurements and Result Displays", on page 13) ● Scaling (Ref Position, Dev per Division) ● Time Domain Zoom (State, Start, Length) AF specific settings: ●...
Page 381: I/Q Data File Format (Iq-Tar)
® Reference R&S FSW-K7 I/Q Data File Format (iq-tar) A.2 I/Q Data File Format (iq-tar) I/Q data is packed in a file with the extension .iq.tar. An iq-tar file contains I/Q data in binary format together with meta information that describes the nature and the source of data, e.g.
Page 382 ® Reference R&S FSW-K7 I/Q Data File Format (iq-tar) A.2.1 I/Q Parameter XML File Specification The content of the I/Q parameter XML file must comply with the XML schema RsIqTar.xsd available at: http://www.rohde-schwarz.com/file/RsIqTar.xsd. In particular, the order of the XML elements must be respected, i.e. iq-tar uses an "ordered XML schema".
Page 383 ® Reference R&S FSW-K7 I/Q Data File Format (iq-tar) Element Description Samples Contains the number of samples of the I/Q data. For multi-channel signals all chan- nels have the same number of samples. One sample can be: ● A complex number represented as a pair of I and Q values ●...
Page 384 ® Reference R&S FSW-K7 I/Q Data File Format (iq-tar) Element Description UserData Optional: contains user, application or device-specific XML data which is not part of the iq-tar specification. This element can be used to store additional information, e.g. the hardware configuration. User data must be valid XML content.
Page 385 ® Reference R&S FSW-K7 I/Q Data File Format (iq-tar) <float>-111</float> </ArrayOfFloat> </Min> <Max> <ArrayOfFloat length="256"> <float>-67</float> <float>-69</float> <float>-70</float> <float>-69</float> </ArrayOfFloat> </Max> </Spectrum> <IQ> <Histogram width="64" height="64">0123456789...0</Histogram> </IQ> </Channel> </ArrayOfChannel> </PreviewData> A.2.2 I/Q Data Binary File The I/Q data is saved in binary format according to the format and data type specified in the XML file (see Format element and DataType element).
Page 386 ® Reference R&S FSW-K7 I/Q Data File Format (iq-tar) Example: Element order for complex cartesian data (3 channels) Complex data: I[channel no][time index], Q[channel no][time index] I[0][0], Q[0][0], // Channel 0, Complex sample 0 I[1][0], Q[1][0], // Channel 1, Complex sample 0...
Page 387: List Of Remote Commands (Analogdemod)
® List of Remote Commands (AnalogDemod) R&S FSW-K7 List of Remote Commands (AnalogDemod) [SENSe:][WINDow<n>:]DETector<t>[:FUNCtion]..................292 [SENSe:][WINDow<n>:]DETector<t>[:FUNCtion]:AUTO................293 [SENSe:]ADEMod<n>:AF:CENTer........................ 271 [SENSe:]ADEMod<n>:AF:COUPling......................267 [SENSe:]ADEMod<n>:AF:SPAN........................271 [SENSe:]ADEMod<n>:AF:SPAN:FULL......................271 [SENSe:]ADEMod<n>:AF:STARt........................272 [SENSe:]ADEMod<n>:AF:STOP........................272 [SENSe:]ADEMod<n>:AM:RELative:AFSPectrum:RESult?................308 [SENSe:]ADEMod<n>:AM:RELative:AFSPectrum[:TYPE]................289 [SENSe:]ADEMod<n>:AM:RELative[:TDOMain]:RESult?................307 [SENSe:]ADEMod<n>:AM:RELative[:TDOMain][:TYPE]................289 [SENSe:]ADEMod<n>:AM[:ABSolute][:TDOMain]:RESult?................307 [SENSe:]ADEMod<n>:AM[:ABSolute][:TDOMain][:TYPE]................289 [SENSe:]ADEMod<n>:FM:AFSPectrum:RESult?..................308 [SENSe:]ADEMod<n>:FM:AFSPectrum[:TYPE]....................290 [SENSe:]ADEMod<n>:FM:OFFSet?......................315 [SENSe:]ADEMod<n>:FM[:TDOMain]:RESult?.....................308 [SENSe:]ADEMod<n>:FM[:TDOMain][:TYPE]....................289...
Page 388 ® List of Remote Commands (AnalogDemod) R&S FSW-K7 [SENSe:]ADJust:CONFigure:HYSTeresis:UPPer..................285 [SENSe:]ADJust:CONFigure:TRIGger......................285 [SENSe:]ADJust:FREQuency........................286 [SENSe:]ADJust:LEVel..........................286 [SENSe:]ADJust:SCALe[:Y]:AUTO[:CONTinuous]..................286 [SENSe:]AVERage<n>:COUNt........................291 [SENSe:]AVERage<n>:TYPE........................292 [SENSe:]AVERage<n>[:STATe<t>].......................292 [SENSe:]BANDwidth:DEMod.........................254 [SENSe:]BANDwidth:DEMod:TYPE......................255 [SENSe:]BANDwidth[:RESolution].........................255 [SENSe:]BWIDth:DEMod..........................254 [SENSe:]BWIDth:DEMod:TYPE........................255 [SENSe:]CORRection:COLLect[:ACQuire]....................235 [SENSe:]CORRection:CVL:BAND......................... 199 [SENSe:]CORRection:CVL:BIAS........................199 [SENSe:]CORRection:CVL:CATAlog?......................200 [SENSe:]CORRection:CVL:CLEAr........................ 200 [SENSe:]CORRection:CVL:COMMent......................200 [SENSe:]CORRection:CVL:DATA......................... 201 [SENSe:]CORRection:CVL:HARMonic......................201 [SENSe:]CORRection:CVL:MIXer......................... 201 [SENSe:]CORRection:CVL:PORTs....................... 202 [SENSe:]CORRection:CVL:SELect.......................
Page 389 ® List of Remote Commands (AnalogDemod) R&S FSW-K7 [SENSe:]MIXer:FREQuency:STARt?......................195 [SENSe:]MIXer:FREQuency:STOP?......................195 [SENSe:]MIXer:HARMonic:BAND......................... 195 [SENSe:]MIXer:HARMonic:BAND:PRESet....................195 [SENSe:]MIXer:HARMonic:HIGH:STATe...................... 196 [SENSe:]MIXer:HARMonic:HIGH[:VALue].....................196 [SENSe:]MIXer:HARMonic:TYPE........................197 [SENSe:]MIXer:HARMonic[:LOW]......................... 197 [SENSe:]MIXer:LOPower..........................193 [SENSe:]MIXer:LOSS:HIGH.......................... 197 [SENSe:]MIXer:LOSS:TABLe:HIGH......................197 [SENSe:]MIXer:LOSS:TABLe[:LOW]......................198 [SENSe:]MIXer:LOSS[:LOW].........................198 [SENSe:]MIXer:PORTs..........................198 [SENSe:]MIXer:RFOVerrange[:STATe]......................198 [SENSe:]MIXer:SIGNal..........................193 [SENSe:]MIXer:THReshold..........................194 [SENSe:]MIXer[:STATe]..........................192 [SENSe:]MSRA:CAPTure:OFFSet........................ 371 [SENSe:]PMETer:DCYCle:VALue......................223 [SENSe:]PMETer:DCYCle[:STATe]......................222 [SENSe:]PMETer:FREQuency........................
Page 390 ® List of Remote Commands (AnalogDemod) R&S FSW-K7 CALCulate<n>:DELTamarker<m>:FUNCtion:FIXed:RPOint:Y:OFFSet............345 CALCulate<n>:DELTamarker<m>:FUNCtion:FIXed[:STATe]............... 345 CALCulate<n>:DELTamarker<m>:LINK......................323 CALCulate<n>:DELTamarker<m>:LINK:TO:MARKer<m>................323 CALCulate<n>:DELTamarker<m>:MAXimum:LEFT..................341 CALCulate<n>:DELTamarker<m>:MAXimum:NEXT..................342 CALCulate<n>:DELTamarker<m>:MAXimum:RIGHt..................342 CALCulate<n>:DELTamarker<m>:MAXimum[:PEAK]...................342 CALCulate<n>:DELTamarker<m>:MINimum:LEFT..................342 CALCulate<n>:DELTamarker<m>:MINimum:NEXT..................343 CALCulate<n>:DELTamarker<m>:MINimum:RIGHt..................343 CALCulate<n>:DELTamarker<m>:MINimum[:PEAK]..................343 CALCulate<n>:DELTamarker<m>:MODE..................... 323 CALCulate<n>:DELTamarker<m>:MREFerence...................324 CALCulate<n>:DELTamarker<m>:SGRam:FRAMe..................334 CALCulate<n>:DELTamarker<m>:SGRam:SARea..................335 CALCulate<n>:DELTamarker<m>:SGRam:XY:MAXimum[:PEAK]............... 335 CALCulate<n>:DELTamarker<m>:SGRam:XY:MINimum[:PEAK]..............335 CALCulate<n>:DELTamarker<m>:SGRam:Y:MAXimum:ABOVe..............335 CALCulate<n>:DELTamarker<m>:SGRam:Y:MAXimum:BELow..............336 CALCulate<n>:DELTamarker<m>:SGRam:Y:MAXimum:NEXT..............336 CALCulate<n>:DELTamarker<m>:SGRam:Y:MAXimum[:PEAK]..............336 CALCulate<n>:DELTamarker<m>:SGRam:Y:MINimum:ABOVe..............
Page 391 ® List of Remote Commands (AnalogDemod) R&S FSW-K7 CALCulate<n>:LIMit<k>:CONTrol:SHIFt....................... 357 CALCulate<n>:LIMit<k>:CONTrol:SPACing....................357 CALCulate<n>:LIMit<k>:CONTrol[:DATA].....................355 CALCulate<n>:LIMit<k>:COPY........................364 CALCulate<n>:LIMit<k>:DELete........................365 CALCulate<n>:LIMit<k>:FAIL?........................367 CALCulate<n>:LIMit<k>:LOWer:MARGin......................358 CALCulate<n>:LIMit<k>:LOWer:MODE......................358 CALCulate<n>:LIMit<k>:LOWer:OFFSet.......................358 CALCulate<n>:LIMit<k>:LOWer:SHIFt......................359 CALCulate<n>:LIMit<k>:LOWer:SPACing.....................359 CALCulate<n>:LIMit<k>:LOWer:STATe......................359 CALCulate<n>:LIMit<k>:LOWer:THReshold....................360 CALCulate<n>:LIMit<k>:LOWer[:DATA]......................357 CALCulate<n>:LIMit<k>:NAME........................360 CALCulate<n>:LIMit<k>:STATe........................365 CALCulate<n>:LIMit<k>:TRACe<t>:CHECk....................365 CALCulate<n>:LIMit<k>:UNIT........................360 CALCulate<n>:LIMit<k>:UPPer:MARGin...................... 361 CALCulate<n>:LIMit<k>:UPPer:MODE......................361 CALCulate<n>:LIMit<k>:UPPer:OFFSet....................... 362 CALCulate<n>:LIMit<k>:UPPer:SHIFt......................362...
Page 392 ® List of Remote Commands (AnalogDemod) R&S FSW-K7 CALCulate<n>:MARKer<m>:FUNCtion:NDBDown:STATe................352 CALCulate<n>:MARKer<m>:FUNCtion:NDBDown:TIME?................353 CALCulate<n>:MARKer<m>:FUNCtion:PNOise:RESult?................354 CALCulate<n>:MARKer<m>:FUNCtion:PNOise[:STATe]................353 CALCulate<n>:MARKer<m>:FUNCtion:REFerence..................244 CALCulate<n>:MARKer<m>:LINK.........................327 CALCulate<n>:MARKer<m>:LINK:TO:MARKer<m>..................320 CALCulate<n>:MARKer<m>:MAXimum:LEFT....................339 CALCulate<n>:MARKer<m>:MAXimum:NEXT..................... 339 CALCulate<n>:MARKer<m>:MAXimum:RIGHt..................... 340 CALCulate<n>:MARKer<m>:MAXimum[:PEAK]................... 339 CALCulate<n>:MARKer<m>:MINimum:LEFT....................340 CALCulate<n>:MARKer<m>:MINimum:NEXT....................340 CALCulate<n>:MARKer<m>:MINimum:RIGHt....................341 CALCulate<n>:MARKer<m>:MINimum[:PEAK].....................341 CALCulate<n>:MARKer<m>:PEXCursion..................... 338 CALCulate<n>:MARKer<m>:SGRam:FRAMe....................330 CALCulate<n>:MARKer<m>:SGRam:SARea....................330 CALCulate<n>:MARKer<m>:SGRam:XY:MAXimum[:PEAK]................330 CALCulate<n>:MARKer<m>:SGRam:XY:MINimum[:PEAK]................. 331 CALCulate<n>:MARKer<m>:SGRam:Y:MAXimum:ABOVe................331...
Page 393 ® List of Remote Commands (AnalogDemod) R&S FSW-K7 CALCulate<n>:PMETer:RELative[:MAGNitude]:AUTO ONCE............... 221 CALCulate<n>:RTMS:ALINe:SHOW......................372 CALCulate<n>:RTMS:ALINe[:VALue]......................373 CALCulate<n>:RTMS:WINDow<n>:IVAL?....................373 CALCulate<n>:UNIT:POWer......................... 244 CALibration:AIQ:HATiming[:STATe]......................211 CALibration:PMETer:ZERO:AUTO ONCE....................220 CONFigure:ADEMod:RESults:AM:DETector<det>:MODE................282 CONFigure:ADEMod:RESults:AM:DETector<det>:REFerence..............280 CONFigure:ADEMod:RESults:AM:DETector<det>:REFerence:MEAStoref..........282 CONFigure:ADEMod:RESults:AM:DETector<det>:STATe................281 CONFigure:ADEMod:RESults:FM:DETector<det>:MODE................282 CONFigure:ADEMod:RESults:FM:DETector<det>:REFerence..............280 CONFigure:ADEMod:RESults:FM:DETector<det>:REFerence:MEAStoref..........282 CONFigure:ADEMod:RESults:FM:DETector<det>:STATe................281 CONFigure:ADEMod:RESults:PM:DETector<det>:MODE................282 CONFigure:ADEMod:RESults:PM:DETector<det>:REFerence..............280 CONFigure:ADEMod:RESults:PM:DETector<det>:REFerence:MEAStoref..........
Page 394 ® List of Remote Commands (AnalogDemod) R&S FSW-K7 INITiate<n>:SEQuencer:MODE........................298 INITiate<n>:SEQuencer:REFResh[:ALL].......................298 INITiate<n>[:IMMediate]..........................296 INPut:ATTenuation............................245 INPut:ATTenuation:AUTO..........................246 INPut:ATTenuation:AUTO:MODE........................246 INPut:ATTenuation:PROTection:RESet......................189 INPut:CONNector............................189 INPut:COUPling.............................189 INPut:DIQ:CDEVice............................213 INPut:DIQ:RANGe:COUPling........................214 INPut:DIQ:RANGe[:UPPer]..........................214 INPut:DIQ:RANGe[:UPPer]:AUTO.........................214 INPut:DIQ:RANGe[:UPPer]:UNIT........................214 INPut:DIQ:SRATe............................215 INPut:DIQ:SRATe:AUTO..........................215 INPut:DPATh..............................190 INPut:EATT..............................246 INPut:EATT:AUTO............................247 INPut:EATT:STATe............................247 INPut:FILTer:HPASs[:STATe]........................190 INPut:FILTer:YIG[:STATe]..........................190 INPut:GAIN:STATe............................248...
Page 395 ® List of Remote Commands (AnalogDemod) R&S FSW-K7 MMEMory:STORe<n>:IQ:COMMent......................374 MMEMory:STORe<n>:IQ:STATe........................375 MMEMory:STORe<n>:LIMit...........................366 MMEMory:STORe<n>:LIST...........................349 MMEMory:STORe<n>:PEAK.........................350 MMEMory:STORe<n>:TRACe........................310 OUTPut:ADEMod[:ONLine]:AF[:CFRequency]....................241 OUTPut:ADEMod[:ONLine]:PHONes......................241 OUTPut:ADEMod[:ONLine]:SOURce......................240 OUTPut:ADEMod[:ONLine][:STATe]......................240 OUTPut:TRIGger<port>:DIRection........................ 265 OUTPut:TRIGger<port>:LEVel........................265 OUTPut:TRIGger<port>:OTYPe........................266 OUTPut:TRIGger<port>:PULSe:IMMediate....................266 OUTPut:TRIGger<port>:PULSe:LENGth.......................266 READ:PMETer?............................222 SOURce:EXTernal:FREQuency........................230 SOURce:EXTernal:FREQuency:COUPling[:STATe]..................230 SOURce:EXTernal:FREQuency:OFFSet.......................231 SOURce:EXTernal:FREQuency[:FACTor]:DENominator................230 SOURce:EXTernal:FREQuency[:FACTor]:NUMerator.................. 231 SOURce:EXTernal:POWer[:LEVel].......................
Page 396 ® List of Remote Commands (AnalogDemod) R&S FSW-K7 TRIGger[:SEQuence]:IFPower:HYSTeresis....................258 TRIGger[:SEQuence]:LEVel:AM:RELative....................260 TRIGger[:SEQuence]:LEVel:AM[:ABSolute]....................261 TRIGger[:SEQuence]:LEVel:BBPower......................258 TRIGger[:SEQuence]:LEVel:FM........................261 TRIGger[:SEQuence]:LEVel:IFPower......................259 TRIGger[:SEQuence]:LEVel:IQPower......................259 TRIGger[:SEQuence]:LEVel:PM........................261 TRIGger[:SEQuence]:LEVel:RFPower......................260 TRIGger[:SEQuence]:LEVel[:EXTernal<port>]....................259 TRIGger[:SEQuence]:OSCilloscope:COUPling..................... 209 TRIGger[:SEQuence]:OSCilloscope:COUPling..................... 260 TRIGger[:SEQuence]:SLOPe........................262 TRIGger[:SEQuence]:SOURce........................262 TRIGger[:SEQuence]:TIME:RINTerval......................264 UNIT<n>:ANGLe............................279 UNIT<n>:PMETer:POWer........................226 UNIT<n>:PMETer:POWer:RATio......................226 UNIT<n>:POWer............................244 UNIT<n>:THD..............................280 User Manual 1173.9240.02 ─ 23...
Page 397: Index
® Index R&S FSW-K7 Index Symbols Analog Baseband (B71) Full scale level ............94 *OPC ................256 I/Q mode ..............68 Input type (remote control) ........211 Analog Baseband connector RF input ..............31 A weighted filter Analog Baseband Interface (B71) AF filters ..............
Page 398 ® Index R&S FSW-K7 Average count ............109, 136 Comment Power sensor .............. 86 Limit lines ..............158 Average mode Compatibility Traces ............... 135 Limit lines ..............156 Averaging Conditions Traces (remote control) ..........292 Measurement .............. 24 Configuration Measurement (remote) ..........187 Procedure ..............
Page 399 ® Index R&S FSW-K7 Deemphasis filter Drop-out time AF filters ..............119 Trigger ..............102 Remote control ..........275, 276 Trigger (Power sensor) ..........87 Deleting Duplicating Limit line values ............160 Measurement channel (remote) ........ 183 Settings files ............... 52 Duty cycle Standards ..............
Page 400 ® Index R&S FSW-K7 External Mixer ..............56 Frequency Activating (remote) ............ 192 Configuration ............113 Band ..............57, 195 Coupling (power sensor) ..........85 Basic settings .............. 59 Deemphasis filter ............119 Configuration .............. 55 Deviation ..............26 Conversion loss ............58 Deviation, scaling ............
Page 401 ® Index R&S FSW-K7 Order (External Mixer) ..........58 Type (External Mixer) ..........58 High pass filter Keys AF filters ..............117 MKR ................138 MKR -> ..............143, 144 High-pass filter Remote ..............190 MKR FUNCT ............. 146 Peak Search ............. 144 RF input ..............
Page 402 ® Index R&S FSW-K7 Marker peak list Microbutton see Peak list ............. 151 Probes ................ 71 Marker table Minimum ................145 Evaluation method ............22 Marker positioning ............ 145 Marker to Trace ............... 141 Next ................145 Markers Mixer Type Assigned trace ............
Page 403 ® Index R&S FSW-K7 Open-circuit reflection measurement Phase Calibration, external generator ........77 Deviation ..............26 Options Deviation, scaling ............120 Electronic attenuation ..........90 Unit ................124 High-pass filter ............ 54, 190 Phase noise measurement Preamplifier ..............91 Activating/Deactivating ..........148 Oscilloscope Deactivating ..............
Page 404 ® Index R&S FSW-K7 Resetting RF input protection ..........30, 189 R&S DigIConf ..............67 Residual FM ..............26 R&S EX-IQ-BOX Resolution bandwidth DigIConf ..............67 see RBW ..............107 R&S SMA Restoring External generator ............35 Channel settings ............50 R&S SMW...
Page 405 ® Index R&S FSW-K7 Saving Softkeys Limit lines ..............160 AF Auto Scale ........... 122, 132 Settings ............... 52 AF Center ..............114 Scalar reflection measurement AF Filter Config ............116 External generator ............34 AF Full Span ............. 114 Scaling AF Span Manual ............
Page 406 ® Index R&S FSW-K7 Sweep count ............. 109 Threshold Time ................100 Limit lines ..............158 Trace 1/2/3/4 ............. 136 Time domain zoom ............ 29, 112 Trace Config ............. 133 Length ............... 112 Trigger Offset ............102 Start ................112 Upper Level Hysteresis ..........
Page 407 ® Index R&S FSW-K7 External ............... 98 X-value External CH3 .............. 98 Marker ............... 140 FM (Offline) ............... 100 Free Run ..............98 I/Q Power ..............99 Y-axis IF Power ..............99 Limit lines ..............159 PM (Offline) ............... 100 Scaling ..............

R&S FSW-K7 User Manual

Table of Contents

1 Preface

2 Welcome to the Analog Demodulation Application

3 Measurements and Result Displays

4 Measurement Basics

5 Configuration

Radio Frequency Input/Radio Frequency State

5.4.1 Trigger Source Settings

[Sense:]Bandwidth[:Resolution] 5.5.2 Sweep Settings

6 Analysis

Trace Settings

Trace / Data Export Configuration

Working with Markers in the R&S FSW Analog Demodulation Application

Limit Line Settings and Functions

Analysis in MSRA/MSRT Mode

7 I/Q Data Import and Export

8 How to Perform Measurements in the Analog Demodulation Appli- Cation

9 Measurement Example: Demodulating an FM Signal

10 Optimizing and Troubleshooting the Measurement

11 Remote Commands for Analog Demodulation Measurements

11.3 Activating Analog Demodulation Measurements

Quick Links

User Manual

Chapters

Related Manuals for R&S FSW-K7

Summary of Contents for R&S FSW-K7

Table of Contents