Rohde & Schwarz ZNL Series User Manual

I/q analyzer

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R&S

ZNL

I/Q Analyzer

User Manual

(;ÜÉç2)

1178598902

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Page 1 ® R&S I/Q Analyzer User Manual (;ÜÉç2) 1178598902...
Page 2 This manual applies to the following R&S ZNL models with firmware version 1.30 and higher: ● ® R&S ZNL3 (2 ports, 9 kHz to 3 GHz, N connectors), order no. 1311.6004K12 ● ® R&S ZNL6 (2 ports, 5 kHz to 6 GHz, female N connectors), order no. 1323.0012.06 The following firmware options are described: ●...
Page 3: Table Of Contents
® Contents R&S Contents 1 Preface....................5 For Your Safety......................5 Documentation Overview..................... 5 Conventions Used in the Documentation..............7 2 Welcome to the I/Q Analyzer Application..........9 Starting the I/Q Analyzer Application................9 Understanding the Display Information..............10 3 Measurement and Result Displays.............13 4 Basics on I/Q Data Acquisition and Processing.......
Page 4 ® Contents R&S How to Capture Baseband (I/Q) Data as RF Input............ 95 How to Analyze Data in the I/Q Analyzer..............96 8 How to Export and Import I/Q Data.............97 9 Remote Commands to Perform Measurements with I/Q Data..99 Introduction.........................
Page 5: Preface
® Preface R&S Documentation Overview 1 Preface This chapter provides safety-related information, an overview of the user documenta- tion and the conventions used in the documentation. 1.1 For Your Safety The R&S ZNL is designated for use in industrial, administrative, and laboratory envi- ronments.
Page 6 ® Preface R&S Documentation Overview 1.2.2 User Manuals and Help Separate user manuals are provided for the base unit and the firmware applications: ● Base unit manual Contains the description of all instrument modes and functions. It also provides an introduction to remote control, a complete description of the remote control com- mands with programming examples, and information on maintenance, instrument interfaces and error messages.
Page 7: Conventions Used In The Documentation
® Preface R&S Conventions Used in the Documentation www.rohde-schwarz.com/brochure-datasheet/ZNL www.rohde-schwarz.com/ brochure-datasheet/ZNLE. 1.2.7 Release Notes and Open Source Acknowledgment (OSA) The release notes list new features, improvements and known issues of the current firmware version, and describe the firmware installation. The open source acknowledgment document provides verbatim license texts of the used open source software.
Page 8 ® Preface R&S Conventions Used in the Documentation Convention Description Links Links that you can click are displayed in blue font. "References" References to other parts of the documentation are enclosed by quota- tion marks. 1.3.2 Conventions for Procedure Descriptions When operating the instrument, several alternative methods may be available to per- form the same task.
Page 9: Welcome To The I/Q Analyzer Application
® Welcome to the I/Q Analyzer Application R&S Starting the I/Q Analyzer Application 2 Welcome to the I/Q Analyzer Application The R&S FPL1 I/Q Analyzer is a firmware application that adds functionality to perform I/Q data acquisition and analysis to the R&S ZNL. The R&S FPL1 I/Q Analyzer features: ●...
Page 10: Understanding The Display Information
® Welcome to the I/Q Analyzer Application R&S Understanding the Display Information A dialog box opens that contains all applications currently available on your R&S ZNL. 2. Select the "I/Q Analyzer" item. The R&S ZNL opens a new channel setup for the I/Q Analyzer application. The measurement is started immediately with the default settings.
Page 11 ® Welcome to the I/Q Analyzer Application R&S Understanding the Display Information Figure 2-1: Screen elements in the I/Q Analyzer application = Channel Setup bar for firmware and measurement settings 2+3 = Window title bar with diagram-specific (trace) information = Diagram area with marker information = Diagram footer with diagram-specific information, depending on result display = Instrument status bar with error messages and date/time display Channel Setup bar information...
Page 12 ® Welcome to the I/Q Analyzer Application R&S Understanding the Display Information Window title bar information For each diagram, the header provides the following information: Figure 2-2: Window title bar information in the I/Q Analyzer application 1 = Window number 2 = Window type 3 = Trace color 4 = Trace number...
Page 13: Measurement And Result Displays
® Measurement and Result Displays R&S 3 Measurement and Result Displays Access: "Overview" > "Display Config" Or: [MEAS] > "Display Config" The I/Q Analyzer can capture I/Q data. The I/Q data that was captured by or imported to the R&S ZNL can then be evaluated in various different result displays. Select the result displays using the SmartGrid functions.
Page 14 ® Measurement and Result Displays R&S The specified Analysis Bandwidth is indicated by vertical blue lines. Note that a peak search is performed only within the indicated Analysis Bandwidth unless you specify Search Limits ( Left / Right ) in the marker settings. Remote command: LAY:ADD:WIND? '1',RIGH,FREQ, see on page 144...
Page 15 ® Measurement and Result Displays R&S Remote command: LAY:ADD:WIND? '1',RIGH,VECT, see on page 144 LAYout:ADD[:WINDow]? Results: on page 208 TRACe<n>[:DATA]? Real/Imag (I/Q) Displays the I and Q values in separate diagrams. Remote command: LAY:ADD:WIND? '1',RIGH,RIM, see on page 144 LAYout:ADD[:WINDow]? Results: on page 208 TRACe<n>[:DATA]?
Page 16 ® Measurement and Result Displays R&S Remote command: LAY:ADD? '1',RIGH, PEAK, see on page 144 LAYout:ADD[:WINDow]? Results: on page 175 CALCulate<n>:MARKer<m>:X on page 213 CALCulate<n>:MARKer<m>:Y User Manual 1178.5989.02 ─ 06...
Page 17: Basics On I/Q Data Acquisition And Processing
® Basics on I/Q Data Acquisition and Processing R&S Processing Analog I/Q Data from RF Input 4 Basics on I/Q Data Acquisition and Pro- cessing Some background knowledge on basic terms and principles used when describing I/Q data acquisition on the R&S ZNL in general, and in the I/Q Analyzer application in par- ticular, is provided here for a better understanding of the required configuration set- tings.
Page 18 ® Basics on I/Q Data Acquisition and Processing R&S Processing Analog I/Q Data from RF Input reduced. The analog filter stages in the analyzer cause a frequency response which adds to the modulation errors. An equalizer filter before the resampler compensates for this frequency response.
Page 19 ® Basics on I/Q Data Acquisition and Processing R&S Processing Analog I/Q Data from RF Input remain unchanged, while signals outside the usable I/Q bandwidth (passband) are suppressed. Usually, the suppressed signals are noise, artifacts, and the second IF side band. If frequencies of interest to you are also suppressed, try to increase the out- put sample rate, which increases the maximum usable I/Q bandwidth.
Page 20: Basics On Fft
® Basics on I/Q Data Acquisition and Processing R&S Basics on FFT 4.2 Basics on FFT The I/Q Analyzer measures the power of the signal input over time. To convert the time domain signal to a frequency spectrum, an FFT (Fast Fourier Transformation) is per- formed which converts a vector of input values into a discrete spectrum of frequencies.
Page 21 ® Basics on I/Q Data Acquisition and Processing R&S Basics on FFT Table 4-2: Characteristics of typical FFT window functions Window type Frequency Magnitude Sidelobe sup- Measurement recommendation resolution resolution pression Rectangular Best Worst Worst No function applied. Separation of two tones with almost equal amplitudes and a small fre- quency distance Blackman-Harris...
Page 22 ® Basics on I/Q Data Acquisition and Processing R&S Basics on FFT Figure 4-3: Overlapping FFTs In "Manual" or "Auto" FFT mode, an FFT length of 4096 and a window length of 4096 (or the record length, if shorter) is used to calculate the spectrum. Combining results - trace detector If the record length permits, multiple overlapping windows are calculated and combined to create the final spectrum using the selected trace detector.
Page 23 ® Basics on I/Q Data Acquisition and Processing R&S Basics on FFT Record Length Defines the number of I/Q samples to capture. By default, the number of sweep points is used. The record length is calculated as the measurement time multiplied by the sample rate.
Page 24 ® Basics on I/Q Data Acquisition and Processing R&S Basics on FFT The RBW is determined by the following equation: Sample Rate   Normalized Bandwidth Window Length Equation 4-1: Definition of RBW (Note: The normalized bandwidth is a fixed value that takes the noise bandwidth of the window function into consideration.) The maximum RBW is restricted by the Analysis Bandwidth...
Page 25: Basics On Input From I/Q Data Files
® Basics on I/Q Data Acquisition and Processing R&S Basics on Input from I/Q Data Files Advanced FFT mode The RBW is determined by the advanced FFT parameters, depending on the selected FFT Calculation Methods method. 4.2.5 FFT Calculation Methods FFT calculation can be performed using different methods.
Page 26: I/Q Data Import And Export
® Basics on I/Q Data Acquisition and Processing R&S I/Q Data Import and Export An application note on converting Rohde & Schwarz I/Q data files is available from the Rohde & Schwarz website: 1EF85: Converting R&S I/Q data files When using input from an I/Q data file, the [RUN SINGLE] function starts a single mea- surement (i.e.
Page 27: Configuration
® Configuration R&S Configuration Overview 5 Configuration Access: [MODE] > "I/Q Analyzer" The I/Q Analyzer is a special application on the R&S ZNL. For details see the "Operating Modes, Applications, Channel Setups, and Result Dis- plays" chapter in the R&S ZNL User Manual. When you switch to an I/Q Analyzer channel setup the first time, a set of parameters is passed on from the currently active application.
Page 28 ® Configuration R&S Configuration Overview Multiple access paths to functionality The easiest way to configure a channel setup is via the "Overview" dialog box, which is available from all menus. Alternatively, you can access the individual dialog boxes from the corresponding menu items, or via tools in the toolbars, if available.
Page 29: Import/Export Functions
® Configuration R&S Import/Export Functions Chapter 5.7, "Data Acquisition and Bandwidth Settings", on page 51 6. Analysis settings and functions Chapter 6, "Analysis", on page 60 7. Display configuration Chapter 5.8, "Display Configuration", on page 57 To configure settings ► Select any button in the "Overview" to open the corresponding dialog box. Select a setting in the channel bar (at the top of the channel setup tab) to change a specific setting.
Page 30 ® Configuration R&S Import/Export Functions ● I/Q data The following data types can be imported (depending on the application): ● I/Q data 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 31 ® Configuration R&S Import/Export Functions Remote command: on page 212 MMEMory:STORe<n>:TRACe File Type ← Export Trace to ASCII File ← Export Determines the format of the ASCII file to be imported or exported. Depending on the external program in which the data file was created or is evaluated, a comma-separated list (CSV) or a plain data format (DAT) file is required.
Page 32: Receiving Data Input And Providing Data Output
® Configuration R&S Receiving Data Input and Providing Data Output I/Q Export ← Export Opens a file selection dialog box to define an export file name to which the I/Q data is stored. This function is only available in single sweep mode. It is not available in the Spectrum application, only in applications that process I/Q data, such as the I/Q Analyzer or optional applications.
Page 33 ® Configuration R&S Receiving Data Input and Providing Data Output RF Input Protection The RF input connector of the R&S ZNL must be protected against signal levels that exceed the ranges specified in the data sheet. Therefore, the R&S ZNL is equipped with an overload protection mechanism.
Page 34 ® Configuration R&S Receiving Data Input and Providing Data Output For details, see Chapter 4.3, "Basics on Input from I/Q Data Files", on page 25. I/Q Input File State......................34 Select I/Q data file ......................34 I/Q Input File State Enables input from the selected I/Q input file. If enabled, the application performs measurements on the data from this file.
Page 35 ® Configuration R&S Receiving Data Input and Providing Data Output The "Sensor" connector is provided by the "Additional Interfaces" option R&S FPL1- B5. Additionally, the power sensor measurement requires the option R&S FPL1-K9. ● Basics on Power Sensors..................35 ● Power Sensor Settings....................35 ●...
Page 36 ® Configuration R&S Receiving Data Input and Providing Data Output State..........................36 Continuous Value Update .................... 36 Select..........................36 Zeroing Power Sensor ....................37 Frequency Manual ....................... 37 Frequency Coupling ..................... 37 Unit/Scale ........................37 Meas Time/Average ..................... 38 Setting the Reference Level from the Measurement Meas -> Ref .......
Page 37 ® Configuration R&S Receiving Data Input and Providing Data Output The detected serial numbers of the power sensors connected to the instrument are provided in a selection list. For each of the four available power sensor indexes ( "Power Sensor 1" ... "Power Sensor 4" ), which correspond to the tabs in the configu- ration dialog, one of the detected serial numbers can be assigned.
Page 38 ® Configuration R&S Receiving Data Input and Providing Data Output Meas Time/Average Selects the measurement time or switches to manual averaging mode. In general, results are more precise with longer measurement times. The following settings are recommended for different signal types to obtain stable and precise results: "Short"...
Page 39 ® Configuration R&S Receiving Data Input and Providing Data Output Duty Cycle Sets the duty cycle to a percent value for the correction of pulse-modulated signals and activates the duty cycle correction. With the correction activated, the sensor calculates the signal pulse power from this value and the mean power. Remote command: on page 115 [SENSe:]PMETer:DCYCle[:STATe]...
Page 40 ® Configuration R&S Receiving Data Input and Providing Data Output account manually, select "Manual" and enter the number in the "Number of Read- ings" field. 8. To activate the duty cycle correction, select "DutyCycle" and enter a percentage as the correction value. 9.
Page 41: Amplitude
® Configuration R&S Amplitude Noise Source Control....................41 Noise Source Control The R&S ZNL provides a connector ("NOISE SOURCE CONTROL") with a 28 V volt- age supply for an external noise source. By switching the supply voltage for an exter- nal noise source on or off in the firmware, you can enable or disable the device as required.
Page 42 ® Configuration R&S Amplitude Amplitude settings determine how the R&S ZNL must process or display the expected input power levels. Reference Level ......................42 └ Shifting the Display (Offset)................42 └ Unit........................43 └ Setting the Reference Level Automatically ( Auto Level ).......43 Attenuation Mode / Value .....................
Page 43 ® Configuration R&S Amplitude Define an offset if the signal is attenuated or amplified before it is fed into the R&S ZNL so the application shows correct power results. All displayed power level results are shifted by this value. The setting range is ±200 dB in 0.01 dB steps. Note, however, that the internal reference level (used to adjust the hardware settings to the expected signal) ignores any "Reference Level Offset"...
Page 44 ® Configuration R&S Amplitude In "Manual" mode, you can set the RF attenuation in 10 dB steps down to 0 dB. Other entries are rounded to the next integer value. The range is specified in the data sheet. If the defined reference level cannot be set for the defined RF attenuation, the refer- ence level is adjusted accordingly and the warning "limit reached"...
Page 45 ® Configuration R&S Amplitude Range..........................45 Ref Level Position ......................45 Scaling.......................... 45 Y-Axis Max ........................46 Range Defines the displayed y-axis range in dB. The default value is 100 dB. Remote command: on page 124 DISPlay[:WINDow<n>]:TRACe<t>:Y[:SCALe] Ref Level Position Defines the reference level position, i.e. the position of the maximum AD converter value on the level axis in %.
Page 46: Frequency Settings
® Configuration R&S Frequency Settings "Linear with Linear scaling in the unit of the measured signal Unit" Linear scaling in percentages from 0 to 100 "Linear Per- cent" "Absolute" The labeling of the level lines refers to the absolute value of the refer- ence level (not available for "Linear Percent"...
Page 47: Trigger Settings
® Configuration R&S Trigger Settings Center Frequency......................47 Center Frequency Stepsize ..................47 Frequency Offset......................47 Center Frequency Defines the center frequency of the signal in Hertz. The allowed range of values for the center frequency depends on the frequency span. span > 0: span /2 ≤...
Page 48 ® Configuration R&S Trigger Settings Conventional gating as in the Spectrum application is not available for the I/Q Ana- lyzer; however, a special gating mode is available in remote control, see Chap- ter 9.4.4.2, "Configuring I/Q Gating", on page 132. For step-by-step instructions on configuring triggered measurements, see the R&S ZNL User Manual.
Page 49 ® Configuration R&S Trigger Settings Remote command: TRIG:SOUR IMM, see on page 130 TRIGger[:SEQuence]:SOURce ExternalTrigger 1 ← Trigger Source ← Trigger Source Data acquisition starts when the TTL signal fed into the trigger input connector of the R&S ZNL meets or exceeds the specified trigger level. (See "...
Page 50 ® Configuration R&S Trigger Settings Repetition Interval ← Trigger Source Defines the repetition interval for a time trigger. The shortest interval is 2 ms. The repetition interval should be set to the exact pulse period, burst length, frame length or other repetitive signal characteristic. Remote command: on page 131 TRIGger[:SEQuence]:TIME:RINTerval...
Page 51: Data Acquisition And Bandwidth Settings
® Configuration R&S Data Acquisition and Bandwidth Settings For gated measurements in "Edge" mode, the slope also defines whether the gate starts on a falling or rising edge. Remote command: on page 130 TRIGger[:SEQuence]:SLOPe 5.7 Data Acquisition and Bandwidth Settings Access: "Overview"...
Page 52 ® Configuration R&S Data Acquisition and Bandwidth Settings Advanced FFT mode / Basic Settings ................53 └ TransformationAlgorithm ................53 └ FFT Length ....................54 └ Window Function ................... 54 └ Window Overlap .....................54 └ Window Length ....................54 Sample Rate Defines the I/Q data sample rate of the R&S ZNL. This value is dependent on the defined Analysis Bandwidth and the defined signal source.
Page 53 ® Configuration R&S Data Acquisition and Bandwidth Settings I and Q signals are interchanged Inverted sideband, Q+j*I I and Q signals are not interchanged Normal sideband, I+j*Q Remote command: on page 137 [SENSe:]SWAPiq Defines the resolution bandwidth for Spectrum results. The available RBW values depend on the sample rate and record length.
Page 54 ® Configuration R&S Data Acquisition and Bandwidth Settings "Averaging" Several overlapping FFTs are calculated for each record; the results are combined to determine the final FFT result for the record. The number of FFTs to be averaged is determined by the Window Overlap and the Window Length...
Page 55 ® Configuration R&S Data Acquisition and Bandwidth Settings Sweep Points........................ 55 Sweep/Average Count ....................55 Continuous Sweep / Run Cont ..................56 Single Sweep / Run Single ...................56 ContinueSingleSweep ....................56 Sweep Points In the I/Q Analyzer application, a specific frequency bandwidth is swept for a specified measurement time.
Page 56 ® Configuration R&S Data Acquisition and Bandwidth Settings Remote command: on page 154 [SENSe:]SWEep:COUNt on page 161 [SENSe:]AVERage<n>:COUNt Continuous Sweep / Run Cont After triggering, starts the sweep and repeats it continuously until stopped. This is the default setting. While the measurement is running, the "Continuous Sweep" softkey and the [RUN CONT] key are highlighted.
Page 57: Display Configuration
® Configuration R&S Adjusting Settings Automatically Remote command: on page 151 INITiate<n>:CONMeas 5.8 Display Configuration Access: "Overview" > "Display Config" The captured signal can be displayed using various evaluation methods. All evaluation methods available for the current application are displayed in the evaluation bar in SmartGrid mode.
Page 58 ® Configuration R&S Adjusting Settings Automatically 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 ZNL should behave: ●...
Page 59 ® Configuration R&S Adjusting Settings Automatically To determine the required reference level, a level measurement is performed on the R&S ZNL. If necessary, you can optimize the reference level further. Decrease the attenuation level manually to the lowest possible value before an overload occurs, then decrease the reference level in the same way.
Page 60: Analysis
® Analysis R&S Trace Settings 6 Analysis Access: "Overview" > "Analysis" General result analysis settings concerning the trace, markers etc. are identical to the analysis functions in the Spectrum application, except for the lines and special marker functions, which are not available for I/Q data. The remote commands required to perform these tasks are described in Chapter 6, "Analysis",...
Page 61 ® Analysis R&S Trace Settings Trace 1 / Trace 2 / Trace 3 / Trace 4 / Trace 5 / Trace 6 ..........61 TraceMode ........................61 Detector ........................62 Hold..........................62 Average Mode ......................62 Predefined Trace Settings - Quick Config ..............63 Trace 1 / Trace 2 / Trace 3 / Trace 4 (Softkeys)............63 Copy Trace...
Page 62 ® Analysis R&S 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 156 DISPlay[:WINDow<n>]:TRACe<t>:MODE Detector Defines the trace detector to be used for trace analysis. The trace detector is used to combine multiple FFT window results to create the final spectrum.
Page 63 ® Analysis R&S Trace Settings "Linear" The power level values are converted into linear units prior to averag- ing. After the averaging, the data is converted back into its original unit. "Logarithmic" For logarithmic scaling, the values are averaged in dBm. For linear scaling, the behavior is the same as with linear averaging.
Page 64: Spectrogram Settings
® Analysis R&S Spectrogram Settings The first group of buttons (labeled "Trace 1" to "Trace 6" ) selects the source trace. The second group of buttons (labeled "Copy to Trace 1" to "Copy to Tace 6" ) selects the destination. Remote command: on page 161 TRACe<n>:COPY...
Page 65 ® Analysis R&S Spectrogram Settings State..........................65 3D Spectrogram State....................65 Select Frame.........................66 History Depth ....................... 66 3-D Display Depth......................66 Time Stamp ........................66 Color Mapping ......................66 Continuous Sweep / Run Cont ..................66 Single Sweep / Run Single ...................67 Clear Spectrogram .......................
Page 66 ® Analysis R&S Spectrogram Settings Remote command: on page 166 CALCulate<n>:SPECtrogram:THReedim[:STATe] Select Frame Selects a specific frame, loads the corresponding trace from the memory, and displays it in the Spectrum window. Note that activating a marker or changing the position of the active marker automati- cally selects the frame that belongs to that marker.
Page 67 ® Analysis R&S Spectrogram Settings While the measurement is running, the "Continuous Sweep" softkey and the [RUN CONT] key are highlighted. The running measurement can be aborted by selecting the highlighted softkey or key again. The results are not deleted until a new measurement is started.
Page 68 ® Analysis R&S Spectrogram Settings Figure 6-1: Color Mapping dialog box = Color map: shows the current color distribution = Preview pane: shows a preview of the spectrogram with any changes that you make to the color scheme = Color curve pane: graphical representation of all settings available to customize the color scheme 4/5 = Color range start and stop sliders: define the range of the color map or amplitudes for the spectrogram = Color curve slider: adjusts the focus of the color curve = Histogram: shows the distribution of measured values...
Page 69: Trace / Data Export Configuration
® Analysis R&S Trace / Data Export Configuration Hot / Cold / Radar / Grayscale Sets the color scheme for the spectrogram. Remote command: on page 169 DISPlay[:WINDow<n>]:SPECtrogram:COLor[:STYLe] Auto Defines the color range automatically according to the existing measured values for optimized display.
Page 70 ® Analysis R&S Trace / Data Export Configuration Export all Traces and all Table Results ................ 70 Include Instrument & Measurement Settings ............... 70 Trace to Export ......................70 Decimal Separator......................70 Export Trace to ASCII File ....................71 └ File Type ......................
Page 71 ® Analysis R&S Trace / Data Export Configuration Remote command: on page 211 FORMat:DEXPort:DSEParator Export Trace to ASCII File Saves the selected trace or all traces in the currently active result display to the speci- fied file and directory in the selected ASCII format. Remote command: on page 212 MMEMory:STORe<n>:TRACe...
Page 72: Marker Usage
® Analysis R&S Marker Usage Remote command: on page 211 FORMat:DEXPort:DSEParator 6.4 Marker Usage Access: "Overview" > "Analysis" The following marker settings and functions are available in the I/Q Analyzer applica- tion. For "I/Q-Vector" displays markers are not available. In the I/Q Analyzer application, the resolution with which the frequency can be mea- sured with a marker is always the filter bandwidth, which is derived from the defined sample rate (see Chapter 4.1.1, "Sample Rate and Maximum Usable I/Q Bandwidth for...
Page 73 ® Analysis R&S Marker Usage 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. All markers are assigned to trace 1, but only the first marker is active.
Page 74 ® Analysis R&S Marker Usage 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. Remote command: on page 175 CALCulate<n>:MARKer<m>:X on page 173...
Page 75 ® Analysis R&S Marker Usage Remote command: on page 174 CALCulate<n>:MARKer<ms>:LINK:TO:MARKer<md> on page 171 CALCulate<n>:DELTamarker<ms>:LINK:TO:MARKer<md> on page 170 CALCulate<n>:DELTamarker<m>:LINK 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 76 ® Analysis R&S Marker Usage 6.4.1.2 General Marker Settings Some general marker settings allow you to influence the marker behavior for all mark- ers. Marker Table Display ....................76 Marker Info ........................76 Marker Stepsize ......................77 Marker Table Display Defines how the marker information is displayed. "On"...
Page 77 ® Analysis R&S Marker Usage Remote command: on page 176 DISPlay[:WINDow<n>]:MINFo[:STATe] 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 78 ® Analysis R&S Marker Usage Markers are commonly used to determine peak values, i.e. maximum or minimum val- ues, in the measured signal. Configuration settings allow you to influence the peak search results. For Spectrograms, special marker settings are available, see Chapter 6.4.2.2, "Marker Search Settings for Spectrograms",...
Page 79 ® Analysis R&S Marker Usage Exclude LO If activated, restricts the frequency range for the marker search functions. "On" The minimum frequency included in the peak search range is ≥ 5 × resolution bandwidth (RBW). Due to the interference by the first local oscillator to the first inter- mediate frequency at the input mixer, the LO is represented as a sig- nal at 0 Hz.
Page 80 ® Analysis R&S Marker Usage Search Threshold ← Search Limits Defines an absolute threshold as an additional condition for the peak search. Only peaks that exceed the threshold are detected. Remote command: on page 180 CALCulate<n>:THReshold Use Zoom Limits ← Search Limits If activated, the peak search is restricted to the active zoom area defined for a single zoom.
Page 81 ® Analysis R&S Marker Usage Search Mode for Next Peak in X-Direction ..............81 Search Mode for Next Peak in Y-Direction ..............81 Marker Search Type .....................82 Marker Search Area ..................... 82 Peak Excursion ......................82 Search Limits ....................... 83 └ Search Limits ( Left / Right )................
Page 82 ® Analysis R&S Marker Usage "Absolute" Determines the next maximum/minimum above or below the current peak (in all frames). "Down" Determines the next maximum/minimum below the current peak (in older frames). Remote command: on page 183 CALCulate<n>:MARKer<m>:SPECtrogram:Y:MAXimum:ABOVe CALCulate<n>:DELTamarker<m>:SPECtrogram:Y:MAXimum:ABOVe on page 188 on page 184 CALCulate<n>:MARKer<m>:SPECtrogram:Y:MAXimum:BELow CALCulate<n>:DELTamarker<m>:SPECtrogram:Y:MAXimum:BELow...
Page 83 ® Analysis R&S Marker Usage For more information, see Chapter 6.4.4.2, "Marker Peak List", on page 91. Remote command: on page 177 CALCulate<n>:MARKer<m>:PEXCursion Search Limits The search results can be restricted by limiting the search area or adding search con- ditions.
Page 84 ® Analysis R&S Marker Usage Peak Search Sets the selected marker/delta marker to the maximum of the trace. If no marker is active, marker 1 is activated. Remote command: on page 192 CALCulate<n>:MARKer<m>:MAXimum[:PEAK] on page 195 CALCulate<n>:DELTamarker<m>:MAXimum[:PEAK] Search Next Peak Sets the selected marker/delta marker to the next (lower) maximum of the assigned trace.
Page 85 ® Analysis R&S Marker Usage Remote command: on page 121 CALCulate<n>:MARKer<m>:FUNCtion:REFerence 6.4.3 Marker Search Settings for Spectrograms Access: "Overview" > "Analysis" > "Markers" > "Search" or: [MKR TO] > "Search Config" Spectrograms show not only the current sweep results, but also the sweep history. Thus, when searching for peaks, you must define the search settings within a single time frame (x-direction) and within several time frames (y-direction).
Page 86 ® Analysis R&S Marker Usage "Absolute" Determines the next maximum/minimum to either side of the current peak. "Right" Determines the next maximum/minimum to the right of the current peak. Remote command: Chapter 9.7.3.5, "Positioning the Marker", on page 190 Search Mode for Next Peak in Y-Direction Selects the search mode for the next peak search within all frames at the current marker position.
Page 87 ® Analysis R&S Marker Usage "Memory" All frames stored in the memory are searched. Remote command: on page 183 CALCulate<n>:MARKer<m>:SPECtrogram:SARea on page 187 CALCulate<n>:DELTamarker<m>:SPECtrogram:SARea 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 88 ® Analysis R&S Marker Usage 6.4.4 Marker Functions Some special marker functions are available in the I/Q Analyzer application. 6.4.4.1 Measuring the Power in a Channel (Band Power Marker) Access: "Overview" > "Analysis" > "Marker Functions" > "Band Power" > "BandPower- Config"...
Page 89 ® Analysis R&S Marker Usage All markers can be defined as band power markers, each with a different span. When a band power marker is activated, if no marker is active yet, marker 1 is activated. Other- wise, the currently active marker is used as a band power marker (all other marker functions for this marker are deactivated).
Page 90 ® Analysis R&S Marker Usage Remote commands: on page 198 CALCulate<n>:MARKer<m>:FUNCtion:BPOWer[:STATe] on page 197 CALCulate<n>:MARKer<m>:FUNCtion:BPOWer:RESult? Band Power Measurement State ................. 90 Span..........................90 Power Mode ......................... 90 Switching All Band Power Measurements Off ..............91 Band Power Measurement State Activates or deactivates band power measurement for the marker in the diagram. Band power markers are only available for standard frequency measurements (not zero span) in the Spectrum application.
Page 91 ® Analysis R&S Marker Usage Remote command: on page 197 CALCulate<n>:MARKer<m>:FUNCtion:BPOWer:MODE on page 199 CALCulate<n>:DELTamarker<m>:FUNCtion:BPOWer:MODE Switching All Band Power Measurements Off Deactivates band power measurement for all markers. Remote command: on page 198 CALCulate<n>:MARKer<m>:FUNCtion:BPOWer[:STATe] on page 200 CALCulate<n>:DELTamarker<m>:FUNCtion:BPOWer[:STATe] 6.4.4.2 Marker Peak List Access: "Overview"...
Page 92 ® Analysis R&S Marker Usage Figure 6-2: 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 93 ® Analysis R&S Marker Usage Remote commands: on page 203 CALCulate<n>:MARKer<m>:FUNCtion:FPEaks:STATe TRAC? LIST, see on page 208 TRACe<n>[:DATA]? Peak List State ......................93 Sort Mode ........................93 Maximum Numberof Peaks ..................94 Peak Excursion ......................94 Display MarkerNumbers ....................94 Export Peak List ......................
Page 94 ® Analysis R&S Marker Usage Remote command: on page 202 CALCulate<n>:MARKer<m>:FUNCtion:FPEaks:SORT Maximum Numberof Peaks Defines the maximum number of peaks to be determined and displayed. Remote command: on page 202 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 95: How To Perform Measurements In The I/Q Analyzer Application
® How to Perform Measurements in the I/Q Analyzer Application R&S How to Capture Baseband (I/Q) Data as RF Input 7 How to Perform Measurements in the I/Q Analyzer Application The following step-by-step instructions demonstrate how to capture I/Q data on the R&S ZNL and how to analyze data in the I/Q Analyzer application.
Page 96: How To Analyze Data In The I/Q Analyzer
® How to Perform Measurements in the I/Q Analyzer Application R&S How to Analyze Data in the I/Q Analyzer c) Select the [RUN SINGLE] key. 7.2 How to Analyze Data in the I/Q Analyzer 1. Select the [MODE] key and select the "I/Q Analyzer" application. 2.
Page 97: How To Export And Import I/Q Data
® How to Export and Import I/Q Data R&S 8 How to Export and Import I/Q Data I/Q data can only be exported in applications that process I/Q data, such as the I/Q Analyzer or optional applications. Capturing and exporting I/Q data 1.
Page 98 ® How to Export and Import I/Q Data R&S 4. Drag the I/Q parameter XML file, e.g. example.xml, into your web browser. User Manual 1178.5989.02 ─ 06...
Page 99: Remote Commands To Perform Measurements With I/Q Data
® Remote Commands to Perform Measurements with I/Q Data R&S Introduction 9 Remote Commands to Perform Measure- ments with I/Q Data The following commands are specific to performing measurements in the I/Q Analyzer application in a remote environment. The R&S ZNL must already be set up for remote operation in a network as described in the base unit manual.
Page 100 ® Remote Commands to Perform Measurements with I/Q Data R&S Introduction Only the most important characteristics that you need to know when working with SCPI commands are described here. For a more complete description, refer to the User Manual of the R&S ZNL. Remote command examples Note that some remote command examples mentioned in this general introduction may not be supported by this particular application.
Page 101 ® Remote Commands to Perform Measurements with I/Q Data R&S Introduction Example: SENSe:FREQuency:CENTer is the same as SENS:FREQ:CENT. 9.1.3 Numeric Suffixes Some keywords have a numeric suffix if the command can be applied to multiple instances of an object. In that case, the suffix selects a particular instance (e.g. a mea- surement window).
Page 102 ® Remote Commands to Perform Measurements with I/Q Data R&S Introduction Example: [SENSe:]BANDwidth|BWIDth[:RESolution] In the short form without optional keywords, BAND 1MHZ would have the same effect as BWID 1MHZ. 9.1.6 SCPI Parameters Many commands feature one or more parameters. If a command supports more than one parameter, these are separated by a comma.
Page 103 ® Remote Commands to Perform Measurements with I/Q Data R&S Introduction Querying numeric values When you query numeric values, the system returns a number. In case of physical quantities, it applies the basic unit (e.g. Hz in case of frequencies). The number of dig- its after the decimal point depends on the type of numeric value.
Page 104: Common Suffixes
® Remote Commands to Perform Measurements with I/Q Data R&S Activating I/Q Analyzer Measurements 9.1.6.4 Character Strings Strings are alphanumeric characters. They have to be in straight quotation marks. You can use a single quotation mark ( ' ) or a double quotation mark ( " ). Example: INSTRument:DELete 'Spectrum' 9.1.6.5...
Page 105 ® Remote Commands to Perform Measurements with I/Q Data R&S Activating I/Q Analyzer Measurements A measurement is started immediately with the default settings when the channel setup is activated. Different remote modes available In remote control, two different modes for the I/Q Analyzer measurements are availa- ble: ●...
Page 106 ® Remote Commands to Perform Measurements with I/Q Data R&S Activating I/Q Analyzer Measurements Example: INST:CRE SAN, 'Spectrum 2' Adds an additional spectrum display named "Spectrum 2". INSTrument:CREate:REPLace <ChannelName1>,<ChannelType>,<ChannelName2> This command replaces a channel setup with another one. Setting parameters: <ChannelName1>...
Page 107 ® Remote Commands to Perform Measurements with I/Q Data R&S Activating I/Q Analyzer Measurements Example: INST:LIST? Result for 3 channel setups: 'ADEM','Analog Demod','IQ','IQ Analyzer','IQ','IQ Analyzer2' Usage: Query only Table 9-2: Available channel setup types and default channel setup names Application <ChannelType>...
Page 108 ® Remote Commands to Perform Measurements with I/Q Data R&S Activating I/Q Analyzer Measurements Parameters: <ChannelType> Channel type of the new channel setup. For a list of available channel setup types see INSTrument: on page 106. LIST? <ChannelName> String containing the name of the channel setup. Example: INST IQ INST 'MyIQSpectrum'...
Page 109: Configuring I/Q Analyzer Measurements
® Remote Commands to Perform Measurements with I/Q Data R&S Configuring I/Q Analyzer Measurements ● All measurements from the previous application (e.g. Spectrum) are turned off ● All traces are set to "Blank" mode ● The I/Q data analysis mode is turned off (TRAC:IQ:EVAL OFF, if previous applica- tion was also I/Q Analyzer) Note: To turn trace display back on or to enable the evaluation functions of the I/Q Analyzer, execute the TRAC:IQ:EVAL ON command (see...
Page 110 ® Remote Commands to Perform Measurements with I/Q Data R&S Configuring I/Q Analyzer Measurements INPut<ip>:ATTenuation:PROTection:RESet This command resets the attenuator and reconnects the RF input with the input mixer for the R&S ZNL after an overload condition occurred and the protection mechanism intervened.
Page 111 ® Remote Commands to Perform Measurements with I/Q Data R&S Configuring I/Q Analyzer Measurements 9.4.1.2 Input from I/Q Data Files The input for measurements can be provided from I/Q data files. The commands required to configure the use of such files are described here. For details see Chapter 4.3, "Basics on Input from I/Q Data Files",...
Page 112 ® Remote Commands to Perform Measurements with I/Q Data R&S Configuring I/Q Analyzer Measurements Configuring Power Sensors ......112 SYSTem:COMMunicate:RDEVice:PMETer:CONFigure:AUTO[:STATe] ............. 112 SYSTem:COMMunicate:RDEVice:PMETer:COUNt? ............112 SYSTem:COMMunicate:RDEVice:PMETer:DEFine 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.
Page 113 ® Remote Commands to Perform Measurements with I/Q Data R&S Configuring I/Q Analyzer Measurements <SerialNo> Serial number of the power sensor assigned to the specified index Example: SYST:COMM:RDEV:PMET2:DEF '','NRP-Z81','', '123456' Assigns the power sensor with the serial number '123456' to the configuration "Power Sensor 2".
Page 114 ® Remote Commands to Perform Measurements with I/Q Data R&S Configuring I/Q Analyzer Measurements CALCulate<n>:PMETer:RELative[:MAGNitude] <RefValue> This command defines the reference value for relative measurements. Suffix: <n> Window Power sensor index Parameters: <RefValue> Range: -200 dBm to 200 dBm *RST: Default unit: DBM Example:...
Page 115 ® Remote Commands to Perform Measurements with I/Q Data R&S Configuring I/Q Analyzer Measurements Example: CALC:PMET2:REL:STAT ON Activates the relative display of the measured value for power sensor 2. FETCh:PMETer? This command queries the results of power sensor measurements. Suffix: ...
Page 116 ® Remote Commands to Perform Measurements with I/Q Data R&S Configuring I/Q Analyzer Measurements Parameters: <Percentage> Range: 0.001 to 99.999 *RST: 99.999 Default unit: % Example: PMET2:DCYC:STAT ON Activates the duty cycle correction. PMET2:DCYC:VAL 0.5 Sets the correction value to 0.5%. Manual operation: "...
Page 117 ® Remote Commands to Perform Measurements with I/Q Data R&S Configuring I/Q Analyzer Measurements [SENSe:]PMETer:MTIMe <Duration> This command selects the duration of power sensor measurements. Suffix: Power sensor index Parameters: <Duration> SHORt | NORMal | LONG *RST: NORMal Example: PMET2:MTIM SHOR Sets a short measurement duration for measurements of station- ary high power signals for the selected power sensor.
Page 118 ® Remote Commands to Perform Measurements with I/Q Data R&S Configuring I/Q Analyzer Measurements Example: PMET2:MTIM:AVER ON Activates manual averaging. Manual operation: " Meas Time/Average " on page 38 [SENSe:]PMETer:ROFFset[:STATe] <State> This command includes or excludes the reference level offset of the analyzer for power sensor measurements.
Page 119 ® Remote Commands to Perform Measurements with I/Q Data R&S Configuring I/Q Analyzer Measurements Suffix: Power sensor index Parameters: <State> ON | OFF | 0 | 1 OFF | 0 Switches the function off ON | 1 Switches the function on Example: PMET1:UPD ON The data from power sensor 1 is updated continuously.
Page 120 ® Remote Commands to Perform Measurements with I/Q Data R&S Configuring I/Q Analyzer Measurements ..................120 DIAGnostic:SERVice:NSOurce ....................120 SYSTem:SPEaker[:STATe] .................... 120 SYSTem:SPEaker:VOLume DIAGnostic:SERVice:NSOurce <State> This command turns the 28 V supply of the BNC connector labeled [noise source control] on the R&S ZNL on and off. Parameters: <State>...
Page 121 ® Remote Commands to Perform Measurements with I/Q Data R&S Configuring I/Q Analyzer Measurements Parameters: <Volume> Percentage of the maximum possible volume. Range: 0 to 1 *RST: Example: SYST:SPE:VOL 0 Switches the loudspeaker to mute. 9.4.2 Configuring the Vertical Axis (Amplitude, Scaling) The following commands are required to configure the amplitude and vertical axis set- tings in a remote environment.
Page 122 ® Remote Commands to Perform Measurements with I/Q Data R&S Configuring I/Q Analyzer Measurements The unit applies to all power-based measurement windows with absolute values. Suffix: <n> irrelevant Parameters: <Unit> *RST: Example: UNIT:POW DBM Sets the power unit to dBm. DISPlay[:WINDow<n>]:TRACe<t>:Y[:SCALe]:RLEVel <ReferenceLevel>...
Page 123 ® Remote Commands to Perform Measurements with I/Q Data R&S Configuring I/Q Analyzer Measurements INPut<ip>:ATTenuation <Attenuation> This command defines the total attenuation for RF input. If you set the attenuation manually, it is no longer coupled to the reference level, but the reference level is coupled to the attenuation.
Page 124 ® Remote Commands to Perform Measurements with I/Q Data R&S Configuring I/Q Analyzer Measurements DISPlay[:WINDow<n>]:TRACe<t>:Y[:SCALe] <Range> This command defines the display range of the y-axis (for all traces). Note that the command works only for a logarithmic scaling. You can select the scaling with DISPlay[:WINDow<n>][:SUBWindow<w>]:TRACe<t>:Y:SPACing.
Page 125 ® Remote Commands to Perform Measurements with I/Q Data R&S Configuring I/Q Analyzer Measurements DISPlay[:WINDow<n>]:TRACe<t>:Y[:SCALe]:RPOSition <Position> This command defines the vertical position of the reference level on the display grid (for all traces). The R&S ZNL adjusts the scaling of the y-axis accordingly. Suffix: <n>...
Page 126 ® Remote Commands to Perform Measurements with I/Q Data R&S Configuring I/Q Analyzer Measurements 9.4.3 Frequency ..............126 CALCulate<n>:MARKer<m>:FUNCtion:CENTer ..................126 [SENSe:]FREQuency:CENTer ................126 [SENSe:]FREQuency:CENTer:STEP ..............127 [SENSe:]FREQuency:CENTer:STEP:AUTO ..................127 [SENSe:]FREQuency:OFFSet CALCulate<n>:MARKer<m>:FUNCtion:CENTer This command matches the center frequency to the frequency of a marker. If you use the command in combination with a delta marker, that delta marker is turned into a normal marker.
Page 127 ® Remote Commands to Perform Measurements with I/Q Data R&S Configuring I/Q Analyzer Measurements Example: //Set the center frequency to 110 MHz. FREQ:CENT 100 MHz FREQ:CENT:STEP 10 MHz FREQ:CENT UP Manual operation: " Center Frequency Stepsize " on page 47 [SENSe:]FREQuency:CENTer:STEP:AUTO <State>...
Page 128 ® Remote Commands to Perform Measurements with I/Q Data R&S Configuring I/Q Analyzer Measurements 9.4.4.1 Configuring the Triggering Conditions The following commands are required to configure a triggered measurement....................128 TRIGger[:SEQuence]:DTIMe ................128 TRIGger[:SEQuence]:HOLDoff[:TIME] ................128 TRIGger[:SEQuence]:IFPower:HOLDoff ...............129 TRIGger[:SEQuence]:IFPower:HYSTeresis ............129 TRIGger<tp>[:SEQuence]:LEVel[:EXTernal<port>] ................
Page 129 ® Remote Commands to Perform Measurements with I/Q Data R&S Configuring I/Q Analyzer Measurements Parameters: <Period> Range: 0 s to 10 s *RST: Default unit: S Example: TRIG:SOUR EXT Sets an external trigger source. TRIG:IFP:HOLD 200 ns Sets the holding time to 200 ns. Manual operation: "...
Page 130 ® Remote Commands to Perform Measurements with I/Q Data R&S Configuring I/Q Analyzer Measurements Parameters: <TriggerLevel> For details on available trigger levels and trigger bandwidths see the data sheet. *RST: -10 dBm Default unit: DBM Example: TRIG:LEV:IFP -30DBM Manual operation: "...
Page 131 ® Remote Commands to Perform Measurements with I/Q Data R&S Configuring I/Q Analyzer Measurements If a measurement is configured to wait for an external trigger signal in a remote control program, remote control is blocked until the trigger is received and the program can continue.
Page 132 ® Remote Commands to Perform Measurements with I/Q Data R&S Configuring I/Q Analyzer Measurements 9.4.4.2 Configuring I/Q Gating Usually in spectrum analysis, measurements are based on a certain length of time called the gate area. With I/Q gating, you can define the gate area using the gate length, the distance between the capture periods and the number of periods.
Page 133 ® Remote Commands to Perform Measurements with I/Q Data R&S Configuring I/Q Analyzer Measurements TRACe:IQ:EGATe:GAP <Samples> This command defines the interval between several gate periods for gated measure- ments with the I/Q analyzer. Parameters: <Samples> <numeric value> Max = (440 MS * sample rate/200MHz) -1 pretrigger samples defined by TRACe:IQ:SET;...
Page 134 ® Remote Commands to Perform Measurements with I/Q Data R&S Configuring I/Q Analyzer Measurements Example: TRAC:IQ:EGAT:TYPE LEV 9.4.5 Configuring Data Acquisition The following commands are required to capture data in the I/Q Analyzer. Useful commands for I/Q data acquisition described elsewhere ●...
Page 135 ® Remote Commands to Perform Measurements with I/Q Data R&S Configuring I/Q Analyzer Measurements Example: IQ:BAND:MODE MAN Switches to manual RBW mode. IQ:BAND:RES 120000 Sets the RBW to 120 kHz. Manual operation: " RBW " on page 53 [SENSe:]IQ:BANDwidth:RESolution <Bandwidth> [SENSe:]IQ:BWIDth:RESolution <Bandwidth>...
Page 136 ® Remote Commands to Perform Measurements with I/Q Data R&S Configuring I/Q Analyzer Measurements [SENSe:]IQ:FFT:LENGth <NoOfBins> Defines the number of frequency points determined by each FFT calculation. The more points are used, the higher the resolution in the spectrum becomes, but the longer the calculation takes.
Page 137 ® Remote Commands to Perform Measurements with I/Q Data R&S Configuring I/Q Analyzer Measurements FLATtop Flattop GAUSsian Gauss RECTangular Rectangular 5-Term *RST: FLAT Example: IQ:FFT:WIND:TYPE GAUS Manual operation: " Window Function " on page 54 [SENSe:]SWAPiq <State> This command defines whether or not the recorded I/Q pairs should be swapped (I<- >Q) before being processed.
Page 138 ® Remote Commands to Perform Measurements with I/Q Data R&S Configuring I/Q Analyzer Measurements Parameters: <NoOfSamples> Number of samples to record. *RST: 1001 Example: TRAC:IQ:RLEN 256 Manual operation: " Record Length " on page 52 TRACe:IQ:SET NORM, 0, <SampleRate>, <TriggerMode>, <TriggerSlope>, <PretriggerSamp>, <NumberSamples>...
Page 139 ® Remote Commands to Perform Measurements with I/Q Data R&S Configuring I/Q Analyzer Measurements <NumberSamples> Number of measurement values to record (including the pretrig- ger samples). *RST: 1001 Example: TRAC:IQ:SET NORM,0,32MHz,EXT,POS,0,2048 Reads 2048 I/Q-values starting at the trigger point. sample rate = 32 MHz trigger = External slope = Positive TRAC:IQ:SET NORM,0,4 MHz,EXT,POS,1024,512...
Page 140 ® Remote Commands to Perform Measurements with I/Q Data R&S Configuring I/Q Analyzer Measurements This value can only be determined in triggered measurements using external or IFPower triggers, otherwise the value is 0. Return values: <Offset> numeric value Default unit: s Example: TRAC:IQ:TPIS? Result for a sample rate of 1 MHz: between 0 and 1/1 MHz, i.e.
Page 141 ® Remote Commands to Perform Measurements with I/Q Data R&S Configuring I/Q Analyzer Measurements Parameters: <Duration> Numeric value in seconds Range: 0.001 to 16000.0 *RST: 0.001 Default unit: s Example: ADJ:CONF:DUR:MODE MAN Selects manual definition of the measurement length. ADJ:CONF:LEV:DUR 5ms Length of the measurement is 5 ms.
Page 142 ® Remote Commands to Perform Measurements with I/Q Data R&S Configuring I/Q Analyzer Measurements [SENSe:]ADJust:CONFigure:HYSTeresis:UPPer <Threshold> When the reference level is adjusted automatically using the [SENSe:]ADJust: on page 142 command, the internal attenuators are also adjusted. In order to LEVel avoid frequent adaptation due to small changes in the input signal, you can define a hysteresis.
Page 143: Configuring The Result Display
® Remote Commands to Perform Measurements with I/Q Data R&S Configuring the Result Display 9.5 Configuring the Result Display The commands required to configure the screen display in a remote environment are described here. ● General Window Commands................143 ● Working with Windows in the Display..............
Page 144 ® Remote Commands to Perform Measurements with I/Q Data R&S Configuring the Result Display ....................144 LAYout:ADD[:WINDow]? .................... 145 LAYout:CATalog[:WINDow]? .................... 145 LAYout:IDENtify[:WINDow]? ....................146 LAYout:MOVE[:WINDow] ..................... 146 LAYout:REMove[:WINDow] .................... 146 LAYout:REPLace[:WINDow] ......................147 LAYout:SPLitter ..................... 148 LAYout:WINDow<n>:ADD? ..................149 LAYout:WINDow<n>:IDENtify? ..................149 LAYout:WINDow<n>:REMove ..................
Page 145 ® Remote Commands to Perform Measurements with I/Q Data R&S Configuring the Result Display Table 9-3: <WindowType> parameter values for IQ Analyzer application Parameter value Window type FREQ Spectrum MAGN Magnitude MTABle Marker table PEAKlist Marker peak list RIMAG Real/Imag (I/Q) VECT I/Q Vector LAYout:CATalog[:WINDow]?
Page 146 ® Remote Commands to Perform Measurements with I/Q Data R&S Configuring the Result Display Usage: Query only LAYout:MOVE[:WINDow] <WindowName>, <WindowName>, <Direction> Setting parameters: <WindowName> String containing the name of an existing window that is to be moved. 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 channel setup, use the query.
Page 147 ® Remote Commands to Perform Measurements with I/Q Data R&S Configuring the Result Display <WindowType> Type of result display you want to use in the existing window. on page 144 for a list of availa- LAYout:ADD[:WINDow]? ble window types. Example: LAY:REPL:WIND '1',MTAB Replaces the result display in window 1 with a marker table.
Page 148 ® Remote Commands to Perform Measurements with I/Q Data R&S 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 149 ® Remote Commands to Perform Measurements with I/Q Data R&S 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> suffix) in the active channel setup.
Page 150: Capturing Data And Performing Sweeps
® Remote Commands to Perform Measurements with I/Q Data R&S Capturing Data and Performing Sweeps Suffix: <n> Window Setting parameters: <WindowType> Type of measurement window you want to replace another one with. on page 144 for a list of availa- LAYout:ADD[:WINDow]? ble window types.
Page 151 ® Remote Commands to Perform Measurements with I/Q Data R&S Capturing Data and Performing Sweeps To prevent overlapping execution of the subsequent command before the measure- ment has been aborted successfully, use the *OPC? or *WAI command after ABOR and before the next command.
Page 152 ® Remote Commands to Perform Measurements with I/Q Data R&S Capturing Data and Performing Sweeps Manual operation: " ContinueSingleSweep " on page 56 INITiate<n>:CONTinuous <State> This command controls the sweep mode for an individual channel setup. Note that in single sweep mode, you can synchronize to the end of the measurement with *OPC, *OPC? or *WAI.
Page 153 ® Remote Commands to Perform Measurements with I/Q Data R&S Capturing Data and Performing Sweeps INITiate:SEQuencer:IMMediate This command starts a new sequence of measurements by the Sequencer. Before this command can be executed, the Sequencer must be activated (see on page 155). SYSTem:SEQuencer Example: SYST:SEQ ON...
Page 154 ® Remote Commands to Perform Measurements with I/Q Data R&S Capturing Data and Performing Sweeps Example: SYST:SEQ ON Activates the Sequencer. INIT:SEQ:MODE SING Sets single sequence mode so each active measurement will be performed once. INIT:SEQ:IMM Starts the sequential measurements. [SENSe:]SWEep:COUNt <SweepCount>...
Page 155 ® Remote Commands to Perform Measurements with I/Q Data R&S Capturing Data and Performing Sweeps Note that the number of sweep points is limited to 10001 when measuring spurious emissions. Suffix: <n> Parameters: <SweepPoints> Range: 101 to 100001 *RST: 1001 Example: SWE:POIN 251 Manual operation:...
Page 156: I/Q Analysis
® Remote Commands to Perform Measurements with I/Q Data R&S I/Q Analysis Example: SYST:SEQ ON Activates the Sequencer. INIT:SEQ:MODE SING Sets single Sequencer mode so each active measurement will be performed once. INIT:SEQ:IMM Starts the sequential measurements. SYST:SEQ OFF 9.7 I/Q Analysis General result analysis settings concerning the trace, markers, etc.
Page 157 ® Remote Commands to Perform Measurements with I/Q Data R&S I/Q Analysis In case of max hold, min hold or average trace mode, you can set the number of single measurements with [SENSe:]SWEep:COUNt. Note that synchronization to the end of the measurement is possible only in single sweep mode.
Page 158 ® Remote Commands to Perform Measurements with I/Q Data R&S I/Q Analysis Note that the command has no effect if critical parameters like the span have been changed to avoid invalid measurement results Suffix: <n> Window <w> subwindow <t> Trace Parameters: <State>...
Page 159 ® Remote Commands to Perform Measurements with I/Q Data R&S I/Q Analysis Suffix: <n> Window <w> subwindow <t> Trace Parameters: <Aperture> Range: 1 to 50 *RST: Default unit: PCT Example: DISP3:TRAC2:SMO:APER 5 Defines an aperture of 5% for trace 2 in window 3 DISPlay[:WINDow<n>][:SUBWindow<w>]:TRACe<t>:SMOothing[:STATe] <State>...
Page 160 ® Remote Commands to Perform Measurements with I/Q Data R&S I/Q Analysis POWer The power level values are converted into unit Watt prior to averaging. After the averaging, the data is converted back into its original unit. *RST: VIDeo Example: AVER:TYPE LIN Switches to linear average calculation.
Page 161 ® Remote Commands to Perform Measurements with I/Q Data R&S I/Q Analysis Example: DET:AUTO OFF The selection of the detector is not coupled to the trace mode. Manual operation: " Detector " on page 62 TRACe<n>:COPY <TraceNumber>, <TraceNumber> This command copies data from one trace to another. Suffix: <n>...
Page 162 ® Remote Commands to Perform Measurements with I/Q Data R&S I/Q Analysis OFF | 0 Switches the function off ON | 1 Switches the function on Example: TRAC:IQ ON Switches on acquisition of I/Q data. TRAC:IQ:AVER ON Enables averaging of the I/Q measurement data. TRAC:IQ:AVER:COUN 10 Selects averaging over 10 data sets.
Page 163 ® Remote Commands to Perform Measurements with I/Q Data R&S I/Q Analysis ................165 CALCulate<n>:SPECtrogram[:STATe] ..............166 CALCulate<n>:SGRam:THReedim[:STATe] ..............166 CALCulate<n>:SPECtrogram:THReedim[:STATe] ..................166 CALCulate<n>:SGRam:TRACe ................166 CALCulate<n>:SPECtrogram:TRACe ................166 CALCulate<n>:SGRam:TSTamp:DATA? ..............166 CALCulate<n>:SPECtrogram:TSTamp:DATA? ................167 CALCulate<n>:SGRam:TSTamp[:STATe] ..............167 CALCulate<n>:SPECtrogram:TSTamp[:STATe] CALCulate<n>:SGRam:CLEar[:IMMediate] CALCulate<n>:SPECtrogram:CLEar[:IMMediate] This command resets the spectrogram and clears the history buffer. Suffix: <n>...
Page 164 ® Remote Commands to Perform Measurements with I/Q Data R&S I/Q Analysis CALCulate<n>:SGRam:FRAMe:COUNt <Frames> CALCulate<n>:SPECtrogram:FRAMe:COUNt <Frames> This command defines the number of frames to be recorded in a single sweep. This value applies to all spectrograms in the channel setup. Suffix: <n>...
Page 165 ® Remote Commands to Perform Measurements with I/Q Data R&S I/Q Analysis Suffix: <n> irrelevant Parameters: <History> The maximum number of frames depends on the number of sweep points. Range: 781 to 20000 Increment: 1 *RST: 3000 Example: CALC:SGR:SPEC 1500 Sets the history depth to 1500.
Page 166 ® Remote Commands to Perform Measurements with I/Q Data R&S I/Q Analysis CALCulate<n>:SGRam:THReedim[:STATe] <State> CALCulate<n>:SPECtrogram:THReedim[:STATe] <State> Activates or deactivates a 3-dimensional spectrogram for the selected result display. Suffix: <n> Window Parameters: <State> ON | OFF | 0 | 1 OFF | 0 Switches the function off ON | 1 Switches the function on...
Page 167 ® Remote Commands to Perform Measurements with I/Q Data R&S I/Q Analysis Return values: <Seconds> Number of seconds that have passed since 01.01.1970 till the frame start <Nanoseconds> Number of nanoseconds that have passed in addition to the <Seconds> since 01.01.1970 till the frame start. <Reserved>...
Page 168 ® Remote Commands to Perform Measurements with I/Q Data R&S I/Q Analysis ..............168 DISPlay[:WINDow<n>]:SGRam:COLor:SHAPe ............168 DISPlay[:WINDow<n>]:SPECtrogram:COLor:SHAPe ..............169 DISPlay[:WINDow<n>]:SGRam:COLor:UPPer ............169 DISPlay[:WINDow<n>]:SPECtrogram:COLor:UPPer ..............169 DISPlay[:WINDow<n>]:SGRam:COLor[:STYLe] ............169 DISPlay[:WINDow<n>]:SPECtrogram:COLor[:STYLe] DISPlay[:WINDow<n>]:SGRam:COLor:DEFault DISPlay[:WINDow<n>]:SPECtrogram:COLor:DEFault This command restores the original color map. Suffix: <n> Window Manual operation: "Set to Default"...
Page 169 ® Remote Commands to Perform Measurements with I/Q Data R&S I/Q Analysis DISPlay[:WINDow<n>]:SGRam:COLor:UPPer <Percentage> DISPlay[:WINDow<n>]:SPECtrogram:COLor:UPPer <Percentage> This command defines the end point of the color map. Suffix: <n> Window Parameters: <Percentage> Statistical frequency percentage. Range: 0 to 66 *RST: Default unit: % Example: DISP:WIND:SGR:COL:UPP 95 Sets the start of the color map to 95%.
Page 170 ® Remote Commands to Perform Measurements with I/Q Data R&S I/Q Analysis For "I/Q Vector" displays markers are not available. ● Setting Up Individual Markers................170 ● General Marker Settings..................175 ● Configuring and Performing a Marker Search............177 ● Marker Search (Spectrograms)................181 ●...
Page 171 ® Remote Commands to Perform Measurements with I/Q Data R&S I/Q Analysis Suffix: <n> Window <m> Marker Parameters: <State> ON | OFF | 0 | 1 OFF | 0 Switches the function off ON | 1 Switches the function on Example: CALC:DELT2:LINK ON Manual operation:...
Page 172 ® Remote Commands to Perform Measurements with I/Q Data R&S I/Q Analysis <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. CALCulate<n>:DELTamarker<m>:MREFerence <Reference>...
Page 173 ® Remote Commands to Perform Measurements with I/Q Data R&S I/Q Analysis Example: CALC:DELT2 ON Turns on delta marker 2. Manual operation: " Marker State " on page 73 " Marker Type " on page 74 " Select Marker " on page 75 CALCulate<n>:DELTamarker<m>:TRACe <Trace>...
Page 174 ® Remote Commands to Perform Measurements with I/Q Data R&S I/Q Analysis Example: CALC:MARK:AOFF Switches off all markers. Manual operation: " All Marker Off " on page 75 CALCulate<n>:MARKer<ms>:LINK:TO:MARKer<md> <State> This command links normal marker <m1> to any active normal marker <m2>. If you change the horizontal position of marker <m2>, marker <m1>...
Page 175 ® Remote Commands to Perform Measurements with I/Q Data R&S I/Q Analysis CALCulate<n>:MARKer<m>:TRACe <Trace> This command selects the trace the marker is positioned on. Note that the corresponding trace must have a trace mode other than "Blank". If necessary, the command activates the marker first. Suffix: <n>...
Page 176 ® Remote Commands to Perform Measurements with I/Q Data R&S I/Q Analysis DISPlay[:WINDow<n>]:MTABle <DisplayMode> This command turns the marker table on and off. Suffix: <n> irrelevant Parameters: <DisplayMode> ON | 1 Turns on the marker table. OFF | 0 Turns off the marker table. AUTO Turns on the marker table if 3 or more markers are active.
Page 177 ® Remote Commands to Perform Measurements with I/Q Data R&S I/Q Analysis <m> irrelevant Parameters: <StepSize> STANdard the marker moves from one pixel to the next POINts the marker moves from one sweep point to the next *RST: POINts Example: CALC:MARK:X:SSIZ STAN Sets the marker step size to one pixel.
Page 178 ® Remote Commands to Perform Measurements with I/Q Data R&S I/Q Analysis Application/Result display Unit Spectrum Suffix: <n> irrelevant <m> irrelevant Parameters: <Excursion> The excursion is the distance to a trace maximum that must be attained before a new maximum is recognized, or the distance to a trace minimum that must be attained before a new minimum is recognized *RST:...
Page 179 ® Remote Commands to Perform Measurements with I/Q Data R&S I/Q Analysis Suffix: <n> irrelevant <m> irrelevant Parameters: <State> ON | OFF | 0 | 1 OFF | 0 Switches the function off ON | 1 Switches the function on Example: CALC:MARK:X:SLIM ON Switches on search limitation.
Page 180 ® Remote Commands to Perform Measurements with I/Q Data R&S I/Q Analysis Suffix: <n> irrelevant <m> irrelevant Parameters: <Limit> The value range depends on the frequency range or sweep time. The unit is Hz for frequency domain measurements and s for time domain measurements.
Page 181 ® Remote Commands to Perform Measurements with I/Q Data R&S I/Q Analysis Parameters: <Level> Numeric value. The value range and unit are variable. *RST: -120 dBm Default unit: DBM Example: CALC:THR -82DBM Sets the threshold value to -82 dBm. Manual operation: "...
Page 182 ® Remote Commands to Perform Measurements with I/Q Data R&S I/Q Analysis Remote commands exclusive to spectrogram markers ..............182 CALCulate<n>:MARKer<m>:SGRam:FRAMe ............182 CALCulate<n>:MARKer<m>:SPECtrogram:FRAMe ..............183 CALCulate<n>:MARKer<m>:SGRam:SARea ............183 CALCulate<n>:MARKer<m>:SPECtrogram:SARea ..........183 CALCulate<n>:MARKer<m>:SGRam:XY:MAXimum[:PEAK] ........183 CALCulate<n>:MARKer<m>:SPECtrogram:XY:MAXimum[:PEAK] ..........183 CALCulate<n>:MARKer<m>:SGRam:XY:MINimum[:PEAK] ........183 CALCulate<n>:MARKer<m>:SPECtrogram:XY:MINimum[:PEAK] ..........183 CALCulate<n>:MARKer<m>:SGRam:Y:MAXimum:ABOVe ........
Page 183 ® Remote Commands to Perform Measurements with I/Q Data R&S I/Q Analysis CALCulate<n>:MARKer<m>:SGRam:SARea <SearchArea> CALCulate<n>:MARKer<m>:SPECtrogram:SARea <SearchArea> This command defines the marker search area for all spectrogram markers in the channel setup. Suffix: <n> irrelevant <m> irrelevant Parameters: <SearchArea> VISible Performs a search within the visible frames. Note that the command does not work if the spectrogram is not visible for any reason (e.g.
Page 184 ® Remote Commands to Perform Measurements with I/Q Data R&S I/Q Analysis <m> Marker Manual operation: " Search Mode for Next Peak in Y-Direction " on page 81 CALCulate<n>:MARKer<m>:SGRam:Y:MAXimum:BELow CALCulate<n>:MARKer<m>:SPECtrogram:Y:MAXimum:BELow This command moves a marker vertically to the next lower peak level for the current frequency.
Page 185 ® Remote Commands to Perform Measurements with I/Q Data R&S I/Q Analysis CALCulate<n>:MARKer<m>:SGRam:Y:MINimum:ABOVe CALCulate<n>:MARKer<m>:SPECtrogram:Y:MINimum:ABOVe This command moves a marker vertically to the next higher 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 186 ® Remote Commands to Perform Measurements with I/Q Data R&S I/Q Analysis If the marker hasn't been active yet, the command first looks for the peak level for all frequencies and moves the marker vertically to the minimum level. Suffix: <n>...
Page 187 ® Remote Commands to Perform Measurements with I/Q Data R&S I/Q Analysis ...........190 CALCulate<n>:DELTamarker<m>:SGRam:Y:MINimum[:PEAK] ........190 CALCulate<n>:DELTamarker<m>:SPECtrogram:Y:MINimum[:PEAK] CALCulate<n>:DELTamarker<m>:SGRam:FRAMe <Frame> | <Time> CALCulate<n>:DELTamarker<m>:SPECtrogram:FRAMe <Frame> This command positions a delta marker on a particular frame. The frame is relative to the position of marker 1. The command is available for the spectrogram.
Page 188 ® Remote Commands to Perform Measurements with I/Q Data R&S I/Q Analysis CALCulate<n>:DELTamarker<m>:SGRam:XY:MAXimum[:PEAK] CALCulate<n>:DELTamarker<m>:SPECtrogram:XY:MAXimum[:PEAK] This command moves a marker to the highest level of the spectrogram over all fre- quencies. Suffix: <n> Window <m> Marker CALCulate<n>:DELTamarker<m>:SGRam:XY:MINimum[:PEAK] CALCulate<n>:DELTamarker<m>:SPECtrogram:XY:MINimum[:PEAK] This command moves a delta marker to the minimum level of the spectrogram over all frequencies.
Page 189 ® Remote Commands to Perform Measurements with I/Q Data R&S I/Q Analysis CALCulate<n>:DELTamarker<m>:SGRam:Y:MAXimum:NEXT CALCulate<n>:DELTamarker<m>:SPECtrogram:Y:MAXimum:NEXT This command moves a delta marker vertically to the next higher level for the current frequency. The search includes all frames. It does not change the horizontal position of the marker.
Page 190 ® Remote Commands to Perform Measurements with I/Q Data R&S I/Q Analysis The search includes only frames below the current marker position. It does not change the horizontal position of the marker. Suffix: <n> Window <m> Marker Manual operation: " Search Mode for Next Peak in Y-Direction " on page 81 CALCulate<n>:DELTamarker<m>:SGRam:Y:MINimum:NEXT CALCulate<n>:DELTamarker<m>:SPECtrogram:Y:MINimum:NEXT...
Page 191 ® Remote Commands to Perform Measurements with I/Q Data R&S I/Q Analysis ..............191 CALCulate<n>:MARKer<m>:MAXimum:AUTO ..............191 CALCulate<n>:MARKer<m>:MAXimum:LEFT ..............192 CALCulate<n>:MARKer<m>:MAXimum:NEXT ..............192 CALCulate<n>:MARKer<m>:MAXimum[:PEAK] ..............192 CALCulate<n>:MARKer<m>:MAXimum:RIGHt ..............192 CALCulate<n>:MARKer<m>:MINimum:AUTO ..............193 CALCulate<n>:MARKer<m>:MINimum:LEFT ..............193 CALCulate<n>:MARKer<m>:MINimum:NEXT ..............193 CALCulate<n>:MARKer<m>:MINimum[:PEAK] ..............194 CALCulate<n>:MARKer<m>:MINimum:RIGHt CALCulate<n>:MARKer<m>:MAXimum:AUTO <State> This command turns an automatic marker peak search for a trace maximum on and off.
Page 192 ® Remote Commands to Perform Measurements with I/Q Data R&S I/Q Analysis CALCulate<n>:MARKer<m>:MAXimum:NEXT This command moves a marker to the next lower peak. In the spectrogram, the command moves a marker horizontally to the maximum level in the currently selected frame. The vertical marker position remains the same. Suffix: <n>...
Page 193 ® Remote Commands to Perform Measurements with I/Q Data R&S I/Q Analysis <m> Marker Parameters: <State> ON | OFF | 0 | 1 OFF | 0 Switches the function off ON | 1 Switches the function on Example: CALC:MARK:MIN:AUTO ON Activates the automatic minimum value search function for marker 1 at the end of each particular sweep.
Page 194 ® Remote Commands to Perform Measurements with I/Q Data R&S I/Q Analysis Suffix: <n> Window <m> Marker Manual operation: " Search Minimum " on page 84 CALCulate<n>:MARKer<m>:MINimum:RIGHt This command moves a marker to the next minimum value. The search includes only measurement values to the right of the current marker posi- tion.
Page 195 ® Remote Commands to Perform Measurements with I/Q Data R&S I/Q Analysis CALCulate<n>:DELTamarker<m>:MAXimum:NEXT This command moves a marker to the next higher value. In the spectrogram, the command moves a marker horizontally to the maximum level in the currently selected frame. The vertical marker position remains the same. Suffix: <n>...
Page 196 ® Remote Commands to Perform Measurements with I/Q Data R&S I/Q Analysis Suffix: <n> Window <m> Marker Manual operation: " Search Next Minimum " on page 84 CALCulate<n>:DELTamarker<m>:MINimum:NEXT This command moves a marker to the next higher minimum value. In the spectrogram, the command moves a marker horizontally to the minimum level in the currently selected frame.
Page 197 ® Remote Commands to Perform Measurements with I/Q Data R&S I/Q Analysis 9.7.3.6 Band Power Marker The following commands control the marker for band power measurements. Using Markers ............. 197 CALCulate<n>:MARKer<m>:FUNCtion:BPOWer:AOFF ............ 197 CALCulate<n>:MARKer<m>:FUNCtion:BPOWer:MODE ..........197 CALCulate<n>:MARKer<m>:FUNCtion:BPOWer:RESult? ............. 198 CALCulate<n>:MARKer<m>:FUNCtion:BPOWer:SPAN ...........198 CALCulate<n>:MARKer<m>:FUNCtion:BPOWer[:STATe] CALCulate<n>:MARKer<m>:FUNCtion:BPOWer:AOFF Removes all band power markers in the specified window.
Page 198 ® Remote Commands to Perform Measurements with I/Q Data R&S I/Q Analysis Suffix: <n> Window <m> Marker Return values: <Power> Signal power over the marker bandwidth. Example: Activate the band power marker: CALC:MARK:FUNC:BPOW:STAT ON Select the density mode for the result: CALC:MARK:FUNC:BPOW:MODE DENS Query the result: CALC:MARK:FUNC:BPOW:RES?
Page 199 ® Remote Commands to Perform Measurements with I/Q Data R&S I/Q Analysis Example: CALC:MARK4:FUNC:BPOW:STAT ON Activates or turns marker 4 into a band power marker. Manual operation: " Band Power Measurement State " on page 90 " Switching All Band Power Measurements Off " on page 91 Using Delta Markers ..........199...
Page 200 ® Remote Commands to Perform Measurements with I/Q Data R&S I/Q Analysis Return values: <Power> Signal power over the delta marker bandwidth. Usage: Query only CALCulate<n>:DELTamarker<m>:FUNCtion:BPOWer:SPAN This command defines the bandwidth around the delta marker position. Suffix: <n> Window <m>...
Page 201 ® Remote Commands to Perform Measurements with I/Q Data R&S I/Q Analysis Remote commands exclusive to peak lists ......201 CALCulate<n>:MARKer<m>:FUNCtion:FPEaks:ANNotation:LABel[:STATe] ...........201 CALCulate<n>:MARKer<m>:FUNCtion:FPEaks:COUNt? ..........202 CALCulate<n>:MARKer<m>:FUNCtion:FPEaks[:IMMediate] ..........202 CALCulate<n>:MARKer<m>:FUNCtion:FPEaks:LIST:SIZE ............202 CALCulate<n>:MARKer<m>:FUNCtion:FPEaks:SORT ............203 CALCulate<n>:MARKer<m>:FUNCtion:FPEaks:STATe ............203 CALCulate<n>:MARKer<m>:FUNCtion:FPEaks:X? ............203 CALCulate<n>:MARKer<m>:FUNCtion:FPEaks:Y? ...................204 MMEMory:STORe<n>:PEAK CALCulate<n>:MARKer<m>:FUNCtion:FPEaks:ANNotation:LABel[:STATe] <State>...
Page 202 ® Remote Commands to Perform Measurements with I/Q Data R&S I/Q Analysis CALCulate<n>:MARKer<m>:FUNCtion:FPEaks[:IMMediate] <Peaks> This command initiates a peak search. Suffix: <n> Window <m> Marker Parameters: <Peaks> This parameter defines the number of peaks to find during the search. Note that the actual number of peaks found during the search also depends on the peak excursion you have set with CALCulate<n>:MARKer<m>:PEXCursion.
Page 203 ® Remote Commands to Perform Measurements with I/Q Data R&S I/Q Analysis Sorts the peaks according to decreasing position on the y-axis. *RST: Example: CALC:MARK:FUNC:FPE:SORT Y Sets the sort mode to decreasing y values Manual operation: " Sort Mode " on page 93 CALCulate<n>:MARKer<m>:FUNCtion:FPEaks:STATe <State>...
Page 204: Retrieving Results
® Remote Commands to Perform Measurements with I/Q Data R&S Retrieving Results Suffix: <n> irrelevant <m> irrelevant Return values: <PeakPosition> Position of the peaks on the y-axis. The unit depends on the measurement. Usage: Query only MMEMory:STORe<n>:PEAK <FileName> This command exports the marker peak list to a file. Suffix: <n>...
Page 205 ® Remote Commands to Perform Measurements with I/Q Data R&S Retrieving Results ● Retrieving Captured I/Q Data................205 ● Retrieving I/Q Trace Data..................207 ● Exporting Traces and Data................... 210 ● Retrieving Marker Results..................212 9.8.1 Retrieving Captured I/Q Data The raw captured I/Q data is output in the form of a list......................
Page 206 ® Remote Commands to Perform Measurements with I/Q Data R&S Retrieving Results If no parameters are specified with the command, the entire trace data is retrieved; in this case, the command returns the same results as TRACe:IQ:DATA. (Note, however, that the TRAC:IQ:DATA? command initiates a new measurement before returning the captured values, rather than returning the existing data in the memory.) The command returns a comma-separated list of the measured values in floating point format (comma-separated values = CSV).
Page 207 ® Remote Commands to Perform Measurements with I/Q Data R&S Retrieving Results Example: TRAC:IQ:STAT ON Enables acquisition of I/Q data TRAC:IQ:SET NORM,10MHz,32MHz,EXT,POS,100,4096 Measurement configuration: Sample Rate = 32 MHz Trigger Source = External Trigger Slope = Positive Pretrigger Samples = 100 Number of Samples = 4096 INIT;*WAI Starts measurement and wait for sync...
Page 208 ® Remote Commands to Perform Measurements with I/Q Data R&S Retrieving Results Note that the command has no effect for data that you send to the R&S ZNL. The R&S ZNL automatically recognizes the data it receives, regardless of the format. Parameters: <Format>...
Page 209 ® Remote Commands to Perform Measurements with I/Q Data R&S Retrieving Results SPECtrogram | SGRam Returns the results of the spectrogram result display. For details see Table 9-6. Return values: <TraceData> Returns the sweep point values as shown in the result display. If you are measuring with the auto peak detector, the command returns positive peak values only.
Page 210 ® Remote Commands to Perform Measurements with I/Q Data R&S Retrieving Results TRACe<n>[:DATA]:MEMory? <Trace>,<OffsSwPoint>,<NoOfSwPoints> This command queries the previously captured trace data for the specified trace from the memory. As an offset and number of sweep points to be retrieved can be specified, the trace data can be retrieved in smaller portions, making the command faster than the TRAC:DATA? command.
Page 211 ® Remote Commands to Perform Measurements with I/Q Data R&S Retrieving Results ..................211 FORMat:DEXPort:DSEParator ....................211 FORMat:DEXPort:FORMat ....................211 FORMat:DEXPort:HEADer ..................... 212 FORMat:DEXPort:TRACes ..................212 MMEMory:STORe<n>:TRACe FORMat:DEXPort:DSEParator <Separator> This command selects the decimal separator for data exported in ASCII format. Parameters: <Separator> POINt | COMMa COMMa Uses a comma as decimal separator, e.g.
Page 212 ® Remote Commands to Perform Measurements with I/Q Data R&S Retrieving Results FORMat:DEXPort:TRACes <Selection> This command selects the data to be included in a data export file (see MMEMory: on page 212). STORe<n>:TRACe Parameters: <Selection> SINGle | ALL SINGle Only a single trace is selected for export, namely the one speci- fied by the command.
Page 213 ® Remote Commands to Perform Measurements with I/Q Data R&S Retrieving Results Remote commands exclusive to retrieving marker results: ..............213 CALCulate<n>:DELTamarker<m>:X:RELative? ................. 213 CALCulate<n>:DELTamarker<m>:Y ..................213 CALCulate<n>:MARKer<m>:Y .....................214 MMEMory:STORe<n>:LIST 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.
Page 214: Importing And Exporting I/Q Data And Results
® Remote Commands to Perform Measurements with I/Q Data R&S Importing and Exporting I/Q Data and Results MMEMory:STORe<n>:LIST <FileName> This command exports the SEM and spurious emission list evaluation to a file. The file format is *.dat. Suffix: <n> Window Parameters: <FileName>...
Page 215 ® Remote Commands to Perform Measurements with I/Q Data R&S Importing and Exporting I/Q Data and Results Suffix: <n> irrelevant Parameters: <Comment> String containing the comment. MMEM:STOR:IQ:COMM 'Device test 1b' Example: Creates a description for the export file. MMEM:STOR:IQ:STAT 1, 'C: \R_S\Instr\user\data.iq.tar' Stores I/Q data and the comment to the specified file.
Page 216: Programming Examples
® Remote Commands to Perform Measurements with I/Q Data R&S Programming Examples 9.10 Programming Examples The following programming examples demonstrate how to capture I/Q data and per- form I/Q data analysis using the I/Q Analyzer in a remote environment. ● I/Q Analysis with Graphical Evaluation..............
Page 217 ® Remote Commands to Perform Measurements with I/Q Data R&S Programming Examples TRAC:DATA? TRACE1 TRAC:DATA? TRACE2 TRAC:DATA? TRACE3 //Returns the magnitude for each sweep point LAY:REPL:WIND '1',RIMAG //Changes the result display to Real/Imag (I/Q) CALC:MARK:SEAR MAGN //Configures searches to search both I and Q branches. CALC:MARK:Y? //Queries the result of the peak search on both branches.
Page 218 ® Remote Commands to Perform Measurements with I/Q Data R&S Programming Examples TRAC:IQ:EGAT:LENG 20 //Sets the gate length to 20 samples. TRAC:IQ:EGAT:GAP 20 //Sets the interval between gate periods to 20 samples. TRAC:IQ:EGAT:NOF 2 //Sets the number of gate periods after the trigger signal to 2. TRIG:SOUR IQP //Defines the magnitude of the sampled I/Q data to be used as a trigger.
Page 219: Annex
® Formats for Returned Values: ASCII Format and Binary Format R&S Annex A Formats for Returned Values: ASCII Format and Binary Format When trace data is retrieved using the TRAC:DATA or TRAC:IQ:DATA command, the data is returned in the format defined using the on page 207.
Page 220: B Reference: Format Description For I/Q Data Files
® Reference: Format Description for I/Q Data Files R&S B Reference: Format Description for I/Q Data Files This section describes how I/Q data is transferred to the memory during remote control (see command). TRACe:IQ:DATA:FORMat For details on the format of the individual values, see Chapter A, "Formats for Returned Values: ASCII Format and Binary Format",...
Page 221 ® Reference: Format Description for I/Q Data Files R&S with "LengthIndicatorDigits" being the number of digits of the length indicator including the #. In the example above (#41024…), this results in a value of 6 for "LengthIndica- torDigits" and the offset for the Q-data results in 512 + 6 = 518. User Manual 1178.5989.02 ─...
Page 222: C I/Q Data File Format (Iq-Tar)
® I/Q Data File Format (iq-tar) R&S C 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 223: I/Q Parameter Xml File Specification
® I/Q Data File Format (iq-tar) R&S I/Q Parameter XML File Specification C.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 224 ® I/Q Data File Format (iq-tar) R&S I/Q Parameter XML File Specification 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: ●...
Page 225 ® I/Q Data File Format (iq-tar) R&S I/Q Parameter XML File Specification 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.
Page 226: I/Q Data Binary File
® I/Q Data File Format (iq-tar) R&S I/Q Data Binary File <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> C.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 227 ® I/Q Data File Format (iq-tar) R&S I/Q Data Binary File 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 I[2][0], Q[2][0], // Channel 2, Complex sample 0 I[0][1], Q[0][1],...
Page 228: List Of Commands
® List of Commands R&S List of Commands [SENSe:][WINDow<n>:]DETector<t>[:FUNCtion]..................160 [SENSe:][WINDow<n>:]DETector<t>[:FUNCtion]:AUTO................160 [SENSe:]ADJust:ALL............................. 140 [SENSe:]ADJust:CONFigure:DURation......................140 [SENSe:]ADJust:CONFigure:DURation:MODE..................... 141 [SENSe:]ADJust:CONFigure:HYSTeresis:LOWer..................141 [SENSe:]ADJust:CONFigure:HYSTeresis:UPPer..................142 [SENSe:]ADJust:CONFigure:TRIGger......................142 [SENSe:]ADJust:FREQuency........................142 [SENSe:]ADJust:LEVel..........................142 [SENSe:]AVERage<n>:COUNt........................161 [SENSe:]AVERage<n>:TYPE........................159 [SENSe:]AVERage<n>[:STATe<t>]........................161 [SENSe:]FREQuency:CENTer........................126 [SENSe:]FREQuency:CENTer:STEP......................126 [SENSe:]FREQuency:CENTer:STEP:AUTO....................127 [SENSe:]FREQuency:OFFSet........................127 [SENSe:]IQ:BANDwidth:MODE........................134 [SENSe:]IQ:BANDwidth:RESolution......................135 [SENSe:]IQ:BWIDth:MODE...........................
Page 229 ® List of Commands R&S CALCulate<n>:DELTamarker<m>:LINK......................170 CALCulate<n>:DELTamarker<m>:MAXimum:LEFT..................194 CALCulate<n>:DELTamarker<m>:MAXimum:NEXT..................195 CALCulate<n>:DELTamarker<m>:MAXimum:RIGHt..................195 CALCulate<n>:DELTamarker<m>:MAXimum[:PEAK]................... 195 CALCulate<n>:DELTamarker<m>:MINimum:LEFT..................195 CALCulate<n>:DELTamarker<m>:MINimum:NEXT..................196 CALCulate<n>:DELTamarker<m>:MINimum:RIGHt..................196 CALCulate<n>:DELTamarker<m>:MINimum[:PEAK]..................196 CALCulate<n>:DELTamarker<m>:MODE......................171 CALCulate<n>:DELTamarker<m>:MREFerence................... 172 CALCulate<n>:DELTamarker<m>:SGRam:FRAMe..................187 CALCulate<n>:DELTamarker<m>:SGRam:SARea..................187 CALCulate<n>:DELTamarker<m>:SGRam:XY:MAXimum[:PEAK]..............188 CALCulate<n>:DELTamarker<m>:SGRam:XY:MINimum[:PEAK]..............188 CALCulate<n>:DELTamarker<m>:SGRam:Y:MAXimum:ABOVe..............188 CALCulate<n>:DELTamarker<m>:SGRam:Y:MAXimum:BELow..............188 CALCulate<n>:DELTamarker<m>:SGRam:Y:MAXimum:NEXT..............189 CALCulate<n>:DELTamarker<m>:SGRam:Y:MAXimum[:PEAK]..............189 CALCulate<n>:DELTamarker<m>:SGRam:Y:MINimum:ABOVe..............
Page 230 ® List of Commands R&S CALCulate<n>:MARKer<m>:FUNCtion:FPEaks:LIST:SIZE................202 CALCulate<n>:MARKer<m>:FUNCtion:FPEaks:SORT................202 CALCulate<n>:MARKer<m>:FUNCtion:FPEaks:STATe................203 CALCulate<n>:MARKer<m>:FUNCtion:FPEaks:X?..................203 CALCulate<n>:MARKer<m>:FUNCtion:FPEaks:Y?..................203 CALCulate<n>:MARKer<m>:FUNCtion:FPEaks[:IMMediate]............... 202 CALCulate<n>:MARKer<m>:FUNCtion:REFerence..................121 CALCulate<n>:MARKer<m>:LOEXclude...................... 177 CALCulate<n>:MARKer<m>:MAXimum:AUTO..................... 191 CALCulate<n>:MARKer<m>:MAXimum:LEFT....................191 CALCulate<n>:MARKer<m>:MAXimum:NEXT..................... 192 CALCulate<n>:MARKer<m>:MAXimum:RIGHt..................... 192 CALCulate<n>:MARKer<m>:MAXimum[:PEAK]................... 192 CALCulate<n>:MARKer<m>:MINimum:AUTO....................192 CALCulate<n>:MARKer<m>:MINimum:LEFT....................193 CALCulate<n>:MARKer<m>:MINimum:NEXT....................193 CALCulate<n>:MARKer<m>:MINimum:RIGHt....................194 CALCulate<n>:MARKer<m>:MINimum[:PEAK].....................193 CALCulate<n>:MARKer<m>:PEXCursion..................... 177 CALCulate<n>:MARKer<m>:SEARch......................178 CALCulate<n>:MARKer<m>:SGRam:FRAMe....................182 CALCulate<n>:MARKer<m>:SGRam:SARea....................183 CALCulate<n>:MARKer<m>:SGRam:XY:MAXimum[:PEAK]................
Page 231 ® List of Commands R&S CALCulate<n>:MARKer<m>:X:SSIZe......................176 CALCulate<n>:MARKer<m>:Y........................213 CALCulate<n>:MARKer<m>[:STATe]......................174 CALCulate<n>:MARKer<ms>:LINK:TO:MARKer<md>................. 174 CALCulate<n>:PMETer:RELative:STATe....................114 CALCulate<n>:PMETer:RELative[:MAGNitude]..................114 CALCulate<n>:PMETer:RELative[:MAGNitude]:AUTO ONCE..............114 CALCulate<n>:SGRam:CLEar[:IMMediate]....................163 CALCulate<n>:SGRam:CONTinuous......................163 CALCulate<n>:SGRam:FRAMe:COUNt......................164 CALCulate<n>:SGRam:FRAMe:SELect......................164 CALCulate<n>:SGRam:HDEPth........................164 CALCulate<n>:SGRam:LAYout........................165 CALCulate<n>:SGRam:THReedim[:STATe]....................166 CALCulate<n>:SGRam:TRACe........................166 CALCulate<n>:SGRam:TSTamp:DATA?....................... 166 CALCulate<n>:SGRam:TSTamp[:STATe]......................167 CALCulate<n>:SGRam[:STATe]........................165 CALCulate<n>:SPECtrogram:CLEar[:IMMediate]..................163 CALCulate<n>:SPECtrogram:CONTinuous....................163 CALCulate<n>:SPECtrogram:FRAMe:COUNt....................164 CALCulate<n>:SPECtrogram:FRAMe:SELect....................
Page 232 ® List of Commands R&S DISPlay[:WINDow<n>]:TRACe<t>:Y[:SCALe]:RLEVel..................122 DISPlay[:WINDow<n>]:TRACe<t>:Y[:SCALe]:RLEVel:OFFSet..............122 DISPlay[:WINDow<n>]:TRACe<t>:Y[:SCALe]:RPOSition................125 DISPlay[:WINDow<n>][:SUBWindow<w>]:TRACe<t>:MODE:HCONtinuous..........157 DISPlay[:WINDow<n>][:SUBWindow<w>]:TRACe<t>:SMOothing:APERture..........158 DISPlay[:WINDow<n>][:SUBWindow<w>]:TRACe<t>:SMOothing[:STATe]..........159 DISPlay[:WINDow<n>][:SUBWindow<w>]:TRACe<t>:Y:SPACing..............125 DISPlay[:WINDow<n>][:SUBWindow<w>]:TRACe<t>:Y[:SCALe]:MODE............. 124 DISPlay[:WINDow<n>][:SUBWindow<w>]:TRACe<t>[:STATe]..............158 FETCh:PMETer?............................115 FORMat:DEXPort:DSEParator........................211 FORMat:DEXPort:FORMat..........................211 FORMat:DEXPort:HEADer..........................211 FORMat:DEXPort:TRACes..........................212 FORMat[:DATA]............................. 207 INITiate:SEQuencer:ABORt...........................152 INITiate:SEQuencer:IMMediate........................153 INITiate:SEQuencer:MODE........................... 153 INITiate<n>:CONMeas..........................151 INITiate<n>:CONTinuous..........................152 INITiate<n>[:IMMediate]..........................152 INPut<ip>:ATTenuation..........................
Page 233 ® List of Commands R&S MMEMory:STORe<n>:LIST...........................214 MMEMory:STORe<n>:PEAK.........................204 MMEMory:STORe<n>:TRACe........................212 READ:PMETer?............................115 SYSTem:COMMunicate:RDEVice:PMETer:CONFigure:AUTO[:STATe]..........112 SYSTem:COMMunicate:RDEVice:PMETer:COUNt?................112 SYSTem:COMMunicate:RDEVice:PMETer:DEFine.................112 SYSTem:PRESet:CHANnel[:EXEC]......................108 SYSTem:SEQuencer............................. 155 SYSTem:SPEaker:VOLume...........................120 SYSTem:SPEaker[:STATe]..........................120 TRACe:IQ:AVERage:COUNt......................... 161 TRACe:IQ:AVERage[:STATe].........................161 TRACe:IQ:BWIDth............................137 TRACe:IQ:DATA............................205 TRACe:IQ:DATA:FORMat..........................205 TRACe:IQ:DATA:MEMory?..........................205 TRACe:IQ:EGATe:GAP..........................133 TRACe:IQ:EGATe:LENGth..........................133 TRACe:IQ:EGATe:NOF..........................133 TRACe:IQ:EGATe:TYPE..........................133 TRACe:IQ:EGATe[:STATe]..........................132 TRACe:IQ:EVAL............................108 TRACe:IQ:RLENgth............................137 TRACe:IQ:SET..............................
Page 234: Index
® Index R&S Index Symbols Basic Measurement Examples see User Manual ............5 *OPC ................127 Branch for peak search I/Q Analyzer ..............80 Brochures ................6 Aborting Sweep ............. 56, 66, 67 Activating Calibration certificate ............7 I/Q Analyzer (remote) ..........104 Capturing All Functions Off ..............
Page 235 ® Index R&S Data format Format ASCII ................ 219 Data ................219 Binary ................ 219 Data (remote) ............ 211, 212 Remote ..............211, 212 I/Q data files .............. 220 Data sheets ................. 6 Frames Decimal separator Spectrogram marker ........... 74 Trace export ............ 31, 70, 71 Free Run Decimation Trigger .................48...
Page 236 ® Index R&S I/Q gating Marker functions Edge triggered ............132 Deactivating ..............94 Level triggered ............132 Marker peak list I/Q measurements see Peak list ............... 93 Methods ..............150 Marker search area I/Q Power Remote control ............177 Trigger .................49 Marker table Trigger level (remote) ..........130...
Page 237 ® Index R&S Performance FFT parameters ............23 Next Minimum ..............84 Performing Marker positioning ............84 I/Q Analyzer measurement ......... 95 Next Mode X Power mode Softkey ..............81, 85 Band power measurement .......... 90 Next Mode Y Power sensors Softkey ..............
Page 238 ® Index R&S Remote commands Searching Basics on syntax ............99 Configuration .............. 77 Boolean values ............103 Configuration (softkey) .......... 80, 85 Capitalization ............100 Security procedures ............6 Character data ............103 Select Frame Data blocks ............... 104 Softkey ................
Page 239 ® Index R&S Color mapping ............66, 67 Trigger Color mapping (remote control) ........ 167 Configuration (softkey) ..........47 Color scheme .............. 69 Drop-out time .............. 50 Configuring (remote control) ........162 External (remote) ............130 Display depth (3-D) ............. 66 Holdoff .................50 Frames (remote control) ...........
Page 240 ® Index R&S Zeroing Power sensor .............. 37 Zoom limits Using for searches .......... 80, 83, 87 User Manual 1178.5989.02 ─ 06...

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Znl6 Znl3

Rohde & Schwarz ZNL Series User Manual

1 Preface

2 Welcome to the I/Q Analyzer Application

3 Measurement and Result Displays

4 Basics on I/Q Data Acquisition and Processing

5 Configuration

6 Analysis

7 How to Perform Measurements in the I/Q Analyzer Application

8 How to Export and Import I/Q Data

9 Remote Commands to Perform Measurements with I/Q Data

A Formats for Returned Values: ASCII Format and Binary Format

B Reference: Format Description for I/Q Data Files

C I/Q Data File Format (Iq-Tar)

I/Q Parameter XML File Specification

I/Q Data Binary File

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