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R&S

FSV-K91/91n/91ac/91p

WLAN TX Measurements

Operating Manual

(;ÚÚa2)

1176.7649.02 ─ 04

Test & Measurement

Summary of content (236 pages)

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R&S® FSV-K91/91n/91ac/91p WLAN TX Measurements Operating Manual (;ÚÚa2) Operating Manual Test & Measurement 1176.7649.
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This manual describes the following R&S®FSV options: ● R&S FSV-K91 (1310.8903.02) ● R&S FSV-K91n (1310.9468.02) ● R&S FSV-K91ac (1310.8926.02) ● R&S FSV-K91p (1321.3314.02) This manual describes the following R&S®FSV models with firmware version 2.30 and higher: ● R&S®FSV 4 (1321.3008K04) ● R&S®FSV 7 (1321.3008K07) ● R&S®FSV 13 (1321.3008K13) ● R&S®FSV 30 (1321.3008K30) ● R&S®FSV 40 (1321.3008K39) ● R&S®FSV 40 (1321.3008K40) It also applies to the following R&S®FSV models.
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R&S® FSV-K91/91n/91ac/91p Contents Contents 1 Preface.................................................................................................... 5 1.1 Documentation Overview............................................................................................. 5 1.2 Conventions Used in the Documentation................................................................... 7 1.3 How to Use the Help System......................................................................................
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R&S® FSV-K91/91n/91ac/91p Contents 5.4 CALCulate:LIMit Subsystem (WLAN)...................................................................... 121 5.5 CALCulate:MARKer Subsystem (WLAN)................................................................ 138 5.6 CONFigure Subsystem (WLAN)............................................................................... 145 5.7 DISPlay Subsystem (WLAN).................................................................................... 163 5.
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R&S® FSV-K91/91n/91ac/91p Preface Documentation Overview 1 Preface 1.1 Documentation Overview The user documentation for the R&S FSV is divided as follows: ● Quick Start Guide ● Operating Manuals for base unit and options ● Service Manual ● Online Help ● Release Notes Quick Start Guide This manual is delivered with the instrument in printed form and in PDF format on the CD. It provides the information needed to set up and start working with the instrument.
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R&S® FSV-K91/91n/91ac/91p Preface Documentation Overview to the data sheets. Basic information on operating the R&S FSV is not included in the option manuals.
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R&S® FSV-K91/91n/91ac/91p Preface Conventions Used in the Documentation Release Notes The release notes describe the installation of the firmware, new and modified functions, eliminated problems, and last minute changes to the documentation. The corresponding firmware version is indicated on the title page of the release notes. The current release notes are provided in the Internet. 1.2 Conventions Used in the Documentation 1.2.
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R&S® FSV-K91/91n/91ac/91p Preface How to Use the Help System 1.3 How to Use the Help System Calling context-sensitive and general help ► To display the general help dialog box, press the HELP key on the front panel. The help dialog box "View" tab is displayed. A topic containing information about the current menu or the currently opened dialog box and its function is displayed. For standard Windows dialog boxes (e.g. File Properties, Print dialog etc.), no contextsensitive help is available.
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R&S® FSV-K91/91n/91ac/91p Preface Notes for Users of R&S FSV 1307.9002Kxx Models 2. Enter the first characters of the topic you are interested in. The entries starting with these characters are displayed. 3. Change the focus by pressing the ENTER key. 4. Select the suitable keyword by using the UP ARROW or DOWN ARROW keys or the rotary knob. 5. Press the ENTER key to display the help topic. The "View" tab with the corresponding help topic is displayed. Changing the zoom 1. Change to the "Zoom" tab. 2.
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R&S® FSV-K91/91n/91ac/91p Introduction 2 Introduction This document contains all information required for operation of an R&S FSV equipped with Application Firmware R&S FSV. It covers operation via menus and the remote control commands for WLAN measurements. This option is not available for R&S FSV 40 model 1307.9002K39. This part of the documentation consists of the following chapters: ● chapter 3.2, "Basic Measurement Examples", on page 13 Describes the measurement setup for WLAN TX measurements.
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R&S® FSV-K91/91n/91ac/91p WLAN TX Measurements 3 WLAN TX Measurements The R&S FSV-K91/91n/91ac/91p application extends the functionality of the R&S FSV signal analyzer to enable wireless LAN TX measurements in accordance with IEEE standards 802.11 a, ac, b, g, j, n & p (assuming the required firmware option is installed). The following topics are described in this section: 3.1 Introduction to WLAN 802.11A, AC, B, G, J, N & P TX Tests.................................. 12 3.2 Basic Measurement Examples..
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R&S® FSV-K91/91n/91ac/91p WLAN TX Measurements Introduction to WLAN 802.11A, AC, B, G, J, N & P TX Tests 3.1 Introduction to WLAN 802.11A, AC, B, G, J, N & P TX Tests The use of an R&S FSV spectrum analyzer enables the accurate and reproducible TX measurement of a wireless LAN device under test (DUT) in accordance with the standards specified for the device. The following test conditions are supported: Modulation formats: ● ● ● ● IEEE 802.11j (10 MHz) – BPSK (3 & 4.
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R&S® FSV-K91/91n/91ac/91p WLAN TX Measurements Basic Measurement Examples Modulation measurements ● Constellation diagram ● Constellation diagram for each OFDM carrier ● I/Q offset and I/Q imbalance ● Carrier and symbol frequency errors ● Modulation error (EVM) for each OFDM carrier or symbol ● Amplitude response and group-delay distortion (spectral flatness) Further measurements and results ● Amplitude statistics (CCDF) and crest factor ● Transmit spectrum mask ● FFT, also over a selecte
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R&S® FSV-K91/91n/91ac/91p WLAN TX Measurements Basic Measurement Examples 3. Activate "Auto Demodulation" (see "Auto Demodulation (IEEE 802.11n, SISO)" on page 99) to use the content of the signal inherent field to detect the modulation type automatically. 3.2.2 Performing the Main Measurement ● Select single sweep measurements by pressing the RUN SINGLE hardkey. ● Select continuous measurements by pressing the RUN CONT hardkey. During the measurement, the status message "Running" is displayed.
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R&S® FSV-K91/91n/91ac/91p WLAN TX Measurements Basic Measurement Examples 2. Connect the external reference REF OUT of the SMU with the external reference REF IN of the analyzers. Switch on the external reference for both analyzers in the spectrum analyzer base system. 3. Connect the marker output of the SMU with the EXT TRIGGER input of the analyzers. 4.
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R&S® FSV-K91/91n/91ac/91p WLAN TX Measurements Basic Measurement Examples 7. Select the "Transmission Bandwidth" 40MHz. In the "IEEE 802.11n WLAN A" dialog, press the "Frame Block Configuration …" button to open the "IEEE 802.11n WLAN A: Frame Blocks Configuration" dialog. Operating Manual 1176.7649.
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R&S® FSV-K91/91n/91ac/91p WLAN TX Measurements Basic Measurement Examples 8. Select "Antennas" 2. In the "IEEE 802.11n WLAN A" dialog, press the "Frame Block Configuration …" button to open the "IEEE 802.11n WLAN A: Frame Blocks Configuration" dialog. Operating Manual 1176.7649.
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R&S® FSV-K91/91n/91ac/91p WLAN TX Measurements Basic Measurement Examples 9. Select "Tx Mode" HT-40MHz. Press the "PPDU Config …" button to open the "IEEE 802.11n WLAN A: PPDU Configuration for Frame Block 1" dialog. Operating Manual 1176.7649.
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R&S® FSV-K91/91n/91ac/91p WLAN TX Measurements Basic Measurement Examples 10. Select "Spatial Streams" 2 and "Space Time Streams" 2. Return to the "IEEE 802.11n WLAN A" dialog. Operating Manual 1176.7649.
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R&S® FSV-K91/91n/91ac/91p WLAN TX Measurements Basic Measurement Examples 11. Check "Configure Baseband B from Baseband A". This will generate a IEEE 802.11n conform Tx 2 signal for path B of the SMU. 12. Toggle the "State" to On and make sure "RF/A Mod A" and "RF/B Mod B" are switched on. Operating Manual 1176.7649.
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R&S® FSV-K91/91n/91ac/91p WLAN TX Measurements Signal Processing of the IEEE 802.11a Application 13. Using the "Graphics | Power Spectrum" display shows the power spectrum for both antennas. 14. Now set up the spectrum analyzer with the R&S FSV-K91n option to perform the WLAN MIMO measurements. Start the R&S FSV-K91n application. 15. Select "Standard" IEEE 802.11n (MIMO). Set the "RF Frequency" the DUT is transmitting. 16. Set "Trigger Mode" to "External".
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R&S® FSV-K91/91n/91ac/91p WLAN TX Measurements Signal Processing of the IEEE 802.11a Application ● chapter 3.3.1, "Understanding Signal Processing of the IEEE 802.11a Application", on page 22 ● chapter 3.3.2, "Literature to the IEEE 802.
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R&S® FSV-K91/91n/91ac/91p WLAN TX Measurements Signal Processing of the IEEE 802.11a Application First the FFT of the LS is calculated. After the FFT calculation the known symbol information of the LS sub-carriers is removed by dividing by the symbols. The result is a coarse estimate Ĥk of the channel transfer function. In the next step the complex channel impulse response is computed by an IFFT.
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Operating Manual 1176.7649.02 ─ 04 LS 2.fine timing 1.
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R&S® FSV-K91/91n/91ac/91p WLAN TX Measurements Signal Processing of the IEEE 802.11a Application The transition to the frequency domain is achieved by an FFT of length 64. The FFT is performed symbol-wise for every of the "nof_symbols" symbols of the payload.
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R&S® FSV-K91/91n/91ac/91p WLAN TX Measurements Signal Processing of the IEEE 802.11a Application The reason for the phase jitter dγ l in Equation (11) may be different. The nonlinear part of the phase jitter may be caused by the phase noise of the DUT oscillator. Another reason for nonlinear phase jitter may be the increase of the DUT amplifier temperature at the beginning of the burst. Note that besides the nonlinear part the phase jitter, dγ l also contains a constant part.
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R&S® FSV-K91/91n/91ac/91p WLAN TX Measurements Signal Processing of the IEEE 802.11a Application Referring to the IEEE 802.11a measurement standard [6], the compensation of the gain gl is not part of the requirements. Therefore the "gain tracking"' (Tracking Gain) is not activated as the default setting of the R&S FSV-K91/91n. How can the parameters above be calculated? In this application the optimum maximum likelihood algorithm is used.
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R&S® FSV-K91/91n/91ac/91p WLAN TX Measurements Signal Processing of the IEEE 802.11a Application (10) it is clear that first the channel transfer function Hk must be removed. This is achieved by dividing the known coarse channel estimate Ĥ(LS)k calculated from the LS. Usually an error free estimation of the data symbols can be assumed. In the next block a better channel estimate Ĥ(PL)k of the data and pilot sub-carriers is calculated by using all nof_symbols symbols of the payload (PL).
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R&S® FSV-K91/91n/91ac/91p WLAN TX Measurements Signal Processing of the IEEE 802.11b Application 3.3.2 Literature to the IEEE 802.11a Application [1] Speth, Classen, Meyr: ''Frame synchronization of OFDM systems in frequency selective fading channels", VTC '97, pp. 1807-1811 [2] Schmidl, Cox: ''Robust Frequency and Timing Synchronization of OFDM", IEEE Trans. on Comm., Dec. 1997, pp. 1613-621 [3] Minn, Zeng, Bhargava: ''On Timing Offset Estimation for OFDM", IEEE Communication Letters, July 2000, pp.
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R&S® FSV-K91/91n/91ac/91p WLAN TX Measurements Signal Processing of the IEEE 802.11b Application ŝn(v) estimate of the power normalized and undisturbed reference signal REAL{...} calculation of the real part of a complex value IMAG{...} calculation of the imaginary part of a complex value 3.4.1 Understanding Signal Processing of the IEEE 802.11b Application A block diagram of the measurement application is shown below in figure 3-2. The baseband signal of an IEEE 802.
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R&S® FSV-K91/91n/91ac/91p WLAN TX Measurements Signal Processing of the IEEE 802.11b Application Fig. 3-2: Signal processing of the IEEE 802.11b application Operating Manual 1176.7649.
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R&S® FSV-K91/91n/91ac/91p WLAN TX Measurements Signal Processing of the IEEE 802.
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R&S® FSV-K91/91n/91ac/91p WLAN TX Measurements Signal Processing of the IEEE 802.
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R&S® FSV-K91/91n/91ac/91p WLAN TX Measurements Signal Processing of the IEEE 802.
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R&S® FSV-K91/91n/91ac/91p WLAN TX Measurements 802.11b RF Carrier Suppression parameter and the accuracy of the estimates is lower than the accuracy of the estimations achieved by (17). If the EVM value is dominated by Gaussian noise this method yields similar results as (18). 3.4.2 Literature of the IEEE 802.11b Application [1] Institute of Electrical and Electronic Engineers, Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) specifications, IEEE Std 802.
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R&S® FSV-K91/91n/91ac/91p WLAN TX Measurements IEEE 802.11n/ac MIMO Measurements 3.6 IEEE 802.11n/ac MIMO Measurements For measurements according to the IEEE 802.11n or ac standard, the R&S FSV can measure multiple data streams between multiple transmitters and multiple receivers (MIMO = multiple in, multiple out). To understand which results come from which part of the data flow it is sensible to have a look at the fundamental processing in transmitter and receiver.
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R&S® FSV-K91/91n/91ac/91p WLAN TX Measurements IEEE 802.11n/ac MIMO Measurements In contrast the I/Q Offset, Gain Imbalance and Quadrature Offset results are calculated for the transmit antenna signals. Ie they are corresponding to the physical channel. HPhy = HeffQ-1 Ie in order to determine the physical channel from the effective channel, the precoding matrix Q (spatial mapping) must be invertible.
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R&S® FSV-K91/91n/91ac/91p WLAN TX Measurements IEEE 802.11n/ac MIMO Measurements The trigger unit is connected to the DUT and all involved analyzers. Then the trigger unit can be used in the following operating modes: ● External mode: If the DUT has a trigger output, the trigger signal from the DUT triggers all analyzers simultaneously. The DUT's TRIGGER OUTPUT is connected to the trigger unit's TRIG INPUT connector.
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R&S® FSV-K91/91n/91ac/91p WLAN TX Measurements Signal Field Measurement (IEEE 802.11ac, n (SISO+MIMO)) Fig. 3-6: R&S®FS-Z11 Trigger Unit connections 1. Connect the EXT TRIG inputs of all analyzers (master and slaves) to the TRIG OUT 1 to 4 (or 1 and 2 only for measurements on two Tx antennas) of the trigger unit. The order is irrelevant, that means you could also connect the master analyzer to the TRIG OUT 2 output of the trigger unit, for example. 2.
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R&S® FSV-K91/91n/91ac/91p WLAN TX Measurements Signal Field Measurement (IEEE 802.11ac, n (SISO+MIMO)) ● The second line shows the R&S FSV-K91 parameters affecting which PPDUs take part in the analysis and which do not (this functionality is referred as "logical filter"). ● The value inside the white rectangle indicates the current "logical filter" setting. Fig.
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R&S® FSV-K91/91n/91ac/91p WLAN TX Measurements Signal Field Measurement (IEEE 802.11ac, n (SISO+MIMO)) Measurement results The R&S FSV-K91 determines certain inconsistencies in the signal and informs the user with an appropriate warning. If the signal was analyzed successfully the results – indicated by a message - also contribute to the overall analysis results. The corresponding PPDU in the Capture Memory is highlighted by an orange bar. Fig.
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R&S® FSV-K91/91n/91ac/91p WLAN TX Measurements Signal Field Measurement (IEEE 802.11ac, n (SISO+MIMO)) Fig.
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R&S® FSV-K91/91n/91ac/91p WLAN TX Measurements Measurement Result Types The Physical Channel results could not be calculated for one or both of the following reasons: ● The spatial mapping can not be applied due to a rectangular mapping matrix (the number of space time streams is not equal to the number of transmit antennas). ● The spatial mapping matrices are singular to working precision.
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R&S® FSV-K91/91n/91ac/91p WLAN TX Measurements Measurement Result Types 3.8.1.1 IQ Offset An IQ-Offset indicates a carrier offset with fixed amplitude. This results in a constant shift of the IQ axes. The offset is normalized by the mean symbol power and displayed in dB. 3.8.1.2 Gain Imbalance An ideal I/Q modulator amplifies the I and Q signal path by exactly the same degree.
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R&S® FSV-K91/91n/91ac/91p WLAN TX Measurements Measurement Result Types Negative values mean that the I vector is amplified more than the Q vector by the corresponding percentage: Operating Manual 1176.7649.
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R&S® FSV-K91/91n/91ac/91p WLAN TX Measurements Measurement Result Types 3.8.1.3 Quadrature Error An ideal I/Q modulator sets the phase angle to exactly 90 degrees. With a quadrature error, the phase angle between the I and Q vector deviates from the ideal 90 degrees, the amplitudes of both components are of the same size. In the vector diagram, the quadrature error causes the coordinate system to shift. A positive quadrature error means a phase angle greater than 90 degrees: Operating Manual 1176.7649.
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R&S® FSV-K91/91n/91ac/91p WLAN TX Measurements Measurement Result Types A negative quadrature error means a phase angle less than 90 degrees: Operating Manual 1176.7649.
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R&S® FSV-K91/91n/91ac/91p WLAN TX Measurements Measurement Result Types 3.8.2 EVM Measurement The R&S FSV-K91 option provides two different types of EVM calculation. Peak EVM (IEEE) Peak EVM (IEEE) evaluates the EVM as defined in section 18.4.7.8 "Transmit modulation accuracy" of the IEEE 802.11b standard. The measurement signal is corrected in respect of frequency error and clock deviation before EVM calculation. Additionally the specified calculation removes the dc offset of the measurement signal.
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R&S® FSV-K91/91n/91ac/91p WLAN TX Measurements Measurement Result Types Burst EVM (Direct) Burst EVM (Direct) evaluates the root mean square EVM over one burst. That is the square root of the averaged error power normalized by the averaged reference power: Before calculation of the EVM, the measurement signal is corrected in respect of frequency error, clock deviation and IQ impairments.
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R&S® FSV-K91/91n/91ac/91p WLAN TX Measurements Measurement Settings and Result Displays 3.8.3 Rise/Fall Time Measurement The rise/fall time is calculated according to the following algorithm: ● Apply a moving average filter over the burst power (adjustable average length) ● If "Ref Pow Max" is set: Search maximum power Pmax over the whole burst. Set Pref=Pmax ● If "Ref Pow Mean" is set: Calculate mean power Pmean of the whole burst. Set Pref=Pmean ● Rise time – Search the first crossing of 0.
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R&S® FSV-K91/91n/91ac/91p WLAN TX Measurements Measurement Settings and Result Displays I/Q measurements (based on captured IQ data) ● Power vs Time (see "PVT" on page 64) ● EVM vs Symbol, EVM vs Carrier (see "EVM vs Symbol/Carrier" on page 69 softkey) ● Phase vs Preamble, Frequency vs Preamble (see "Error Frequency/Phase" on page 71 softkey) ● Spectrum Flatness (see "Spectrum Flatness (IEEE 802.11a, ac, g, j, n (OFDM), p / Group Delay (IEEE 802.
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R&S® FSV-K91/91n/91ac/91p WLAN TX Measurements Measurement Settings and Result Displays Fig. 3-11: Measurement settings in the channel bar (example) The following settings are listed: Table 3-1: Measurement settings for IEEE 802.11a, p Setting Description Restrictions Sig. Lvl. Set The expected mean signal level for the input signal. Turbo Mode only Frequency The frequency of the measured input signal.
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R&S® FSV-K91/91n/91ac/91p WLAN TX Measurements Measurement Settings and Result Displays Setting Description Standard Selected measurement standard Preamble The type of preamble of analyzed bursts. Modulation Shows the active setting selected in the "Demod Settings" dialog box: "Demodulator" or "PSDU Modulation to Analyze". Burst x of y (z) In case statistic over bursts is switched on (Overall Burst Count), x bursts of totally required y (No of Bursts to Analyze) bursts have been analyzed so far.
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R&S® FSV-K91/91n/91ac/91p WLAN TX Measurements Measurement Settings and Result Displays Setting Description Standard Selected measurement standard PPDU/MCS Index/GI The PPDU Type, MCS Index and Guard Interval used for the analysis of the signal is displayed. Depending on the Demod Settings, these values are either automatically detected from the signal or the user settings are applied.
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R&S® FSV-K91/91n/91ac/91p WLAN TX Measurements Measurement Settings and Result Displays 3.9.2.1 Result display for measurements on OFDM signals Fig. 3-12: Result summary list for measurements on OFDM signals ● EVM All Carr, IEEE802.11a, j, g, p Shows the EVM (Error Vector Magnitude) over all carriers of the payload symbols in % and in dB. For better orientation, the table also shows the corresponding limits specified in the standard. ● EVM Data Carr, IEEE802.
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R&S® FSV-K91/91n/91ac/91p WLAN TX Measurements Measurement Settings and Result Displays Shows the gain imbalance of the signal in % as well as dB. This is the amplification of the quadrature phase component of the signal relative to the in-phase component. ● Quadrature Error, IEEE802.11a, j, g, p Shows the quadrature error of the signal in degree. This is the deviation of the quadrature phase angle from the ideal 90°. ● Frequency Error, IEEE802.
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R&S® FSV-K91/91n/91ac/91p WLAN TX Measurements Measurement Settings and Result Displays 3.9.2.2 Result display for measurements on DSSS / CCK / PBCC signals Fig. 3-13: Result summary list for measurements on DSSS/CCK/PBCC signals ● Peak Vector Err, IEEE802.11b, g Shows the peak vector error over the complete burst including the preamble in % and in dB. The vector error is calculated according to the IEEE 802.11b definition of the normalized error vector magnitude.
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R&S® FSV-K91/91n/91ac/91p WLAN TX Measurements Measurement Settings and Result Displays see chapter 3.9.2.1, "Result display for measurements on OFDM signals", on page 55 ● Chip Clock Error, IEEE802.11b, g see Symbol Clock Error in chapter 3.9.2.1, "Result display for measurements on OFDM signals", on page 55 ● Rise Time, IEEE802.11b, g Shows the rise time of the pulsed signal in µs. This is the time period the signal needs to increase its power level from 10% to 90% of the maximum resp.
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R&S® FSV-K91/91n/91ac/91p WLAN TX Measurements Measurement Settings and Result Displays Fig. 3-14: MIMO Global result summary Fig. 3-15: MIMO result summary: overview of 2 streams 3.9.3 Result Display Graph Additionally to the selected graphical result display, the Magnitude Capture Buffer display is provided for all I/Q measurements. The individual result displays are described with the corresponding softkey. Operating Manual 1176.7649.
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R&S® FSV-K91/91n/91ac/91p WLAN TX Measurements Measurement Settings and Result Displays The Magnitude Capture Buffer display shows the complete range of captured data for the last sweep. All analyzed bursts are identified with a green bar at the bottom of the Magnitude Capture Buffer display. If, in the "Demod Settings" dialog box, the "Signal Field Content" option is activated, only bursts that match the required criteria are marked with a green bar (see "Signal Field Content (IEEE 802.
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R&S® FSV-K91/91n/91ac/91p WLAN TX Measurements Measurement Settings and Result Displays ● For MIMO measurements (IEEE 802.11ac or n (MIMO) only) the results for each data stream are displayed in a separate graph. Fig. 3-17: MIMO data stream results (example) 3.9.4 Title Bar Information The title bar displays the following information: ● wireless LAN standard applicable to the current measurement. 3.9.
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R&S® FSV-K91/91n/91ac/91p Instrument Functions WLAN TX Measurements 4 Instrument Functions WLAN TX Measurements To open the WLAN menu ● If the "WLAN" mode is not the active measurement mode, press the MODE key and select the "WLAN" softkey To exit the "WLAN" measurement mode, select another option. Menu and softkey description ● chapter 4.1, "Softkeys of the WLAN TX Menu", on page 63 ● chapter 4.4, "Softkeys of the Sweep Menu – SWEEP key ", on page 110 ● chapter 4.
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R&S® FSV-K91/91n/91ac/91p Instrument Functions WLAN TX Measurements Softkeys of the WLAN TX Menu 4.4 Softkeys of the Sweep Menu – SWEEP key ...........................................................110 4.5 Softkeys of the Trace Menu – TRAC key................................................................ 111 4.6 Softkeys of the Marker Menu – MKR key (WLAN)..................................................111 4.7 Softkeys of the Marker To Menu – MKR-> key..........................................
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R&S® FSV-K91/91n/91ac/91p Instrument Functions WLAN TX Measurements Softkeys of the WLAN TX Menu └ Spectrum ACPR (IEEE 802.11a, ac, g (OFDM Turbo Mode), n, p)/ Spectrum ACP (IEEE 802.11b)/ ACP Rel/Abs (IEEE 802.11j)........................................80 └ Gating Settings On/Off....................................................................................81 └ SEM Settings.................................................................................................. 81 └ SEM according to.......
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R&S® FSV-K91/91n/91ac/91p Instrument Functions WLAN TX Measurements Softkeys of the WLAN TX Menu For IEEE 802.11b and g (single carrier), the PVT results are displayed as percentage values of the reference power. The reference can be set to either the max or mean power of the PPDU. For both rising and falling edges two time lines are displayed, which mark the points 10 % and 90 % of the reference power.
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R&S® FSV-K91/91n/91ac/91p Instrument Functions WLAN TX Measurements Softkeys of the WLAN TX Menu Remote command: CONFigure:BURSt:PVT:SELect on page 149 Ramp Up/Down/Up & Down (IEEE 802.11b, g – Single Carrier) ← PVT Sets the display of the rising/falling edge graph: Up Displays the rising edge graph. Down Displays the falling edge graph. Up & Down Displays the rising and falling edge graph. Operating Manual 1176.7649.
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R&S® FSV-K91/91n/91ac/91p Instrument Functions WLAN TX Measurements Softkeys of the WLAN TX Menu For further details refer to the "PVT" on page 64 softkey. Remote command: CONFigure:BURSt:PVT:SELect on page 149 Ref Pow Max/Mean (IEEE 802.11b, g – Single Carrier) ← PVT Sets the reference for the rise and fall time calculation to the maximum or mean PPDU power. For further details refer to the "PVT" on page 64 softkey. Remote command: CONFigure:BURSt:PVT:RPOWer on page 149 Average Length (IEEE 802.
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R&S® FSV-K91/91n/91ac/91p Instrument Functions WLAN TX Measurements Softkeys of the WLAN TX Menu On Uses only the specified range of captured data in results calculation. In the Magnitude Capture Buffer trace, two vertical lines mark the specified range. Off Uses all the captured data in results calculation. In the "Gate Settings" dialog box, the following parameters are set: Delay Start point of captured data to be used in results calculation, i.e.
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R&S® FSV-K91/91n/91ac/91p Instrument Functions WLAN TX Measurements Softkeys of the WLAN TX Menu R&S Support ← PVT Stores useful information for troubleshooting in case of errors. This data is stored in the C:\R_S\Instr\user\Support directory on the instrument. If you contact the Rohde&Schwarz support to get help for a certain problem, send these files to the support in order to identify and solve the problem faster.
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R&S® FSV-K91/91n/91ac/91p Instrument Functions WLAN TX Measurements Softkeys of the WLAN TX Menu ● EVM vs Carrier (IEEE 802.11a, g, j – OFDM),n & p This result display shows all EVM values recorded on a per-carrier basis over the full set of measured data. An average trace is also displayed. Operating Manual 1176.7649.
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R&S® FSV-K91/91n/91ac/91p Instrument Functions WLAN TX Measurements Softkeys of the WLAN TX Menu Remote command: CONFigure:BURSt:EVM:ESYMbol[:IMMediate] on page 148 CONFigure:BURSt:EVM:ECARrier[:IMMediate] on page 147 Error Frequency/Phase ← EVM Constell Selects the Rel. Frequency Error vs Preamble or the Phase Error vs Preamble result displays. These result displays show the error values recorded over the preamble part of the PPDU. A minimum, average and maximum trace are displayed.
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R&S® FSV-K91/91n/91ac/91p Instrument Functions WLAN TX Measurements Softkeys of the WLAN TX Menu Operating Manual 1176.7649.
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R&S® FSV-K91/91n/91ac/91p Instrument Functions WLAN TX Measurements Softkeys of the WLAN TX Menu Remote command: CONFigure:BURSt:PREamble[:IMMediate] on page 148 CONFigure:BURSt:PREamble:SELect on page 148 CONFigure:BURSt:PREamble:SELect on page 148 Constell vs Symbol/Carrier ← EVM Constell Selects the Constallation vs Symbol or the Constellation vs Carrier result displays.
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R&S® FSV-K91/91n/91ac/91p Instrument Functions WLAN TX Measurements Softkeys of the WLAN TX Menu ● Constellation vs Carrier (IEEE 802.11a, g, j – OFDM),n & p This result display shows the in-phase and quadrature phase results over the full range of the measured input data plotted on a per-carrier basis. The magnitude of the in-phase and quadrature part is shown on the y-axis, both are displayed as separate traces (I-> trace 1, Q-> trace 2). Operating Manual 1176.7649.
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R&S® FSV-K91/91n/91ac/91p Instrument Functions WLAN TX Measurements Softkeys of the WLAN TX Menu Remote command: CONFigure:BURSt:CONStellation:CSYMbol[:IMMediate] on page 147 CONFigure:BURSt:CONStellation:CCARrier[:IMMediate] on page 147 Carrier Selection (IEEE 802.11a, ac, g, j, n (OFDM), p) ← EVM Constell Opens a dialog box to select the carrier for data display. Either a specific carrier number, pilots only or all carriers can be selected.
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R&S® FSV-K91/91n/91ac/91p Instrument Functions WLAN TX Measurements Softkeys of the WLAN TX Menu Auto Scaling If activated, the scaling of the y-axis is calculated automatically. Per Division Specifies the scaling to be used if Auto Scaling is deactivated. Unit Specifies the y-axis unit. With the unit is dB, Auto Scaling is always activated.
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R&S® FSV-K91/91n/91ac/91p Instrument Functions WLAN TX Measurements Softkeys of the WLAN TX Menu Fig. 4-1: Spectrum flatness result for IEEE 802.11a standard measurement For IEEE 802.11ac or n (MIMO) you can select between the physical and effective channel model for the spectrum flatness and group delay measurement (see "Chan Sel" on page 82). Operating Manual 1176.7649.
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R&S® FSV-K91/91n/91ac/91p Instrument Functions WLAN TX Measurements Softkeys of the WLAN TX Menu Fig. 4-2: Spectrum flatness result for IEEE 802.11n (MIMO) with 2 streams Remote command: CONFigure:BURSt:SPECtrum:FLATness[:IMMediate] on page 151 IEEE 802.11n (MIMO): CONFigure:BURSt:SPECtrum:FLATness:SELect on page 151 Spectrum Mask (IEEE 802.11ac, b, g (Single Carrier)) / Spectrum IEEE/ETSI (IEEE 802.11a, g, j, n (OFDM), p) ← Spectrum Sets the Spectrum Mask result display.
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R&S® FSV-K91/91n/91ac/91p Instrument Functions WLAN TX Measurements Softkeys of the WLAN TX Menu Remote command: CONFigure:BURSt:SPECtrum:MASK[:IMMediate] on page 152 CONFigure:BURSt:SPECtrum:MASK:SELect on page 152 Spectrum FFT ← Spectrum Sets the Spectrum FFT result display. This result display shows the Power vs Frequency results obtained from a FFT performed over the range of data in the Magnitude Capture Buffer which lies within the gate lines. Operating Manual 1176.7649.
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R&S® FSV-K91/91n/91ac/91p Instrument Functions WLAN TX Measurements Softkeys of the WLAN TX Menu Remote command: CONFigure:BURSt:SPECtrum:FFT[:IMMediate] on page 150 Spectrum ACPR (IEEE 802.11a, ac, g (OFDM Turbo Mode), n, p)/ Spectrum ACP (IEEE 802.11b)/ ACP Rel/Abs (IEEE 802.11j) ← Spectrum Sets the ACP (Adjacent Channel Power) result display. This result display is similar to the Spectrum Mask measurement, and provides information about leakage into adjacent channels.
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R&S® FSV-K91/91n/91ac/91p Instrument Functions WLAN TX Measurements Softkeys of the WLAN TX Menu Remote command: CONFigure:BURSt:SPECtrum:ACPR[:IMMediate] on page 150 CALCulate:MARKer<1>:FUNCtion:POWer:RESult[:CURRent]? on page 144 CALCulate:MARKer<1>:FUNCtion:POWer:RESult:MAXHold? on page 144 Gating Settings On/Off ← Spectrum See "Gating Settings On/Off ((IEEE 802.11a, b, g, j, p)" on page 67.
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R&S® FSV-K91/91n/91ac/91p Instrument Functions WLAN TX Measurements Softkeys of the WLAN TX Menu When using "ETSI" or "IEEE" standards, "File Name" indicates the name of the built-in configuration. Remote command: MMEMory:LOAD:SEM:STATe 1, on page 180 Trace Reduction ← SEM Settings ← Spectrum During the Spectrum Emission Mask (SEM) measurement data is acquired and trace data is selected according to the trace detector setting from the SEM xml definition file for each frequency range.
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R&S® FSV-K91/91n/91ac/91p Instrument Functions WLAN TX Measurements Softkeys of the WLAN TX Menu Display List/Graph ← Statistics See "Display List/Graph" on page 64 CCDF ← Statistics Sets the CCDF result display. This result display shows the probability of an amplitude within the gating lines exceeding the mean power measured between the gating lines. The x-axis displays power relative to the measured mean power.
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R&S® FSV-K91/91n/91ac/91p Instrument Functions WLAN TX Measurements Softkeys of the WLAN TX Menu ● IEEE 802.11b or g (Single Carrier) The results are grouped by PPDU. Operating Manual 1176.7649.
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R&S® FSV-K91/91n/91ac/91p Instrument Functions WLAN TX Measurements Softkeys of the WLAN TX Menu Remote command: CONFigure:BURSt:STATistics:BSTReam[:IMMediate] on page 152 Signal Field (IEEE 802.11a, ac, g (OFDM), j , n, p) ← Statistics Sets the "Signal Field" result display. This result display shows the decoded data from the signal field of the PPDU. Therefore it is only available if, in the "Demod Settings" dialog box, the "Signal Field Content" option is activated. For the IEEE 802.
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R&S® FSV-K91/91n/91ac/91p Instrument Functions WLAN TX Measurements Softkeys of the WLAN TX Menu Remote command: CONFigure:BURSt:STATistics:SFIeld[:IMMediate] on page 153 Gating Settings On/Off ← Statistics See "Gating Settings On/Off ((IEEE 802.11a, b, g, j, p)" on page 67. PLCP Header (IEEE 802.11b, g – Single Carrier) ← Statistics This result display shows the decoded data from the PLCP header of the PPDU.
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R&S® FSV-K91/91n/91ac/91p Instrument Functions WLAN TX Measurements General Settings Dialog Box (K91) PSDU Length length field The decoded time to transmit the PSDU is shown below. 000000000111100 0 120 µs CRC CRC field The result is displayed below (OK for passed or Failed). 111010011100111 0 OK Remote command: CONFigure:BURSt:STATistics:SFIeld[:IMMediate] on page 153 4.
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R&S® FSV-K91/91n/91ac/91p Instrument Functions WLAN TX Measurements General Settings Dialog Box (K91) 4.2.1 General Settings Standard .......................................................................................................................88 Frequency .................................................................................................................... 88 Channel No .................................................................................................................
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R&S® FSV-K91/91n/91ac/91p Instrument Functions WLAN TX Measurements General Settings Dialog Box (K91) For all standards other than IEEE 802.11b & g (Single Carrier), the reference level is set 10 dB higher than the signal level (RF) because of the expected crest factor of the signal. For standards IEEE 802.11b & g (Single Carrier), the reference level is set to the signal level (RF).
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R&S® FSV-K91/91n/91ac/91p Instrument Functions WLAN TX Measurements General Settings Dialog Box (K91) Sweep Count Specifies the number of sweeps to be performed for Spectrum ACP/ACPR and Spectrum Mask measurements. Remote command: [SENSe:]SWEep:COUNt on page 200 Trigger Mode Sets the source of the trigger for the data capture process of the measurement. "Free Run" The measurement sweep starts immediately.
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R&S® FSV-K91/91n/91ac/91p Instrument Functions WLAN TX Measurements General Settings Dialog Box (K91) This softkey is only available if "IFPower", "RF Power" or "BBPower" is the selected trigger source. Remote command: TRIGger[:SEQuence]:IFPower:HOLDoff on page 217 Trigger Hysteresis Defines the value for the trigger hysteresis for "IF power" or "RF Power" trigger sources.
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R&S® FSV-K91/91n/91ac/91p Instrument Functions WLAN TX Measurements General Settings Dialog Box (K91) 4.2.2 Advanced Settings Swap IQ ....................................................................................................................... 92 Input Sample Rate........................................................................................................ 92 Full Scale Level.............................................................................................................
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R&S® FSV-K91/91n/91ac/91p Instrument Functions WLAN TX Measurements General Settings Dialog Box (K91) Attenuation Specifies the settings for the attenuator. This field is only editable if the "Auto Lvl" option is deactivated. If the "Auto Lvl" option is activated, the RF attenuator setting is coupled to the reference level setting. Remote command: INPut:ATTenuation on page 177 Sample Rate Specifies the sample rate used for IQ measurements. For IEEE 802.
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R&S® FSV-K91/91n/91ac/91p Instrument Functions WLAN TX Measurements General Settings Dialog Box (K91) Signal Capture Defines the MIMO method used by the analyzer(s) to capture data from multiple TX antennas sent by one device under test (DUT). All modes support RF and Analog Baseband signal input. "Simultaneous" Simultaneous normal MIMO operation The number of Tx antennas set in DUT MIMO configuration defines the number of analyzers required for this measurement setup.
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R&S® FSV-K91/91n/91ac/91p Instrument Functions WLAN TX Measurements General Settings Dialog Box (K91) Joined RX Sync and Tracking ← Simultaneous Signal Capture Setup This command configures how PPDU synchronization and tracking is performed for multiple captured antenna signals. "ON" RX antennas are synchronized and tracked together. "OFF" RX antennas are synchronized and tracked separately.
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R&S® FSV-K91/91n/91ac/91p Instrument Functions WLAN TX Measurements General Settings Dialog Box (K91) ● ● ● Blue colored arrows represent the connections between the Tx antennas of the DUT and the corresponding SMA plugs of the R&S®OSP-B101 option. Green colored arrows represent auxiliary connections of SMA plugs of the R&S®OSP-B101 option. Yellow colored arrows represent the connection between the SMA plug of the R&S®OSP-B101 option with the RF or analog baseband input of the analyzer.
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R&S® FSV-K91/91n/91ac/91p Instrument Functions WLAN TX Measurements Demod Settings Dialog Box Analyze ← Manual Sequential MIMO Data Capture Calculates the results for the captured antenna signals. Remote command: CALCulate:BURSt[:IMMediate] on page 120 Clear ← Manual Sequential MIMO Data Capture Clears all the capture memory previews. 4.3 Demod Settings Dialog Box In the "Demod Settings" dialog box, the settings associated with the signal modulation can be modified.
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R&S® FSV-K91/91n/91ac/91p Instrument Functions WLAN TX Measurements Demod Settings Dialog Box Filters (IEEE 802.11b, g).............................................................................................103 └ Transmit Filter............................................................................................... 103 └ Receive Filter................................................................................................ 103 └ Equalizer Filter Len. ....................................
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R&S® FSV-K91/91n/91ac/91p Instrument Functions WLAN TX Measurements Demod Settings Dialog Box "Direct Link PPDU" IEEE 802.11a, j, n, p "OFDM" IEEE 802.11g "Long DSSS"-"OFDM" IEEE 802.11g "Short DSSS"-"OFDM" IEEE 802.11g "Long PLCP" IEEE 802.11g "Short PLCP" IEEE 802.11g Remote command: [SENSe:]DEMod:FORMat:BANalyze:BTYPe on page 187 Preamble Type (IEEE 802.11b) Specifies the type of PPDU which should be included in measurement analysis.
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R&S® FSV-K91/91n/91ac/91p Instrument Functions WLAN TX Measurements Demod Settings Dialog Box Demodulator (IEEE 802.11a, b, g, j, p) Specifies the modulation to be applied to the measured data. If the captured data uses a different modulation scheme than specified by this field the results will be of limited use. This field is only available if the "Signal Field Content" or the "Use Header Content" option is deactivated.
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R&S® FSV-K91/91n/91ac/91p Instrument Functions WLAN TX Measurements Demod Settings Dialog Box Standard State Description IEEE 802.11g (OFDM) On Only PPDUs with exactly the number of data symbols or duration specified in the "Payload Length" field are considered for measurement analysis. (See "Payload Length (IEEE 802.
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R&S® FSV-K91/91n/91ac/91p Instrument Functions WLAN TX Measurements Demod Settings Dialog Box Payload Length (IEEE 802.11b, g) Specifies the number of symbols, bytes or duration of a PPDU to be considered in measurement analysis. This field is only available if the "Equal PPDU Length" option is activated. Remote command: [SENSe:]DEMod:FORMat:BANalyze:DBYTes:MIN on page 190 [SENSe:]DEMod:FORMat:BANalyze:DURation:MIN on page 191 Min Payload Length (IEEE 802.
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R&S® FSV-K91/91n/91ac/91p Instrument Functions WLAN TX Measurements Demod Settings Dialog Box Level Activates or deactivates the compensation for level error. If activated, the measurement results are compensated for level error on a per-symbol basis. Remote command: [SENSe:]TRACking:LEVel on page 203 Pilots for Tracking (IEEE 802.11n, ac (SISO+MIMO)) In case tracking is used, the used pilot sequence has an effect on the measurement results.
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R&S® FSV-K91/91n/91ac/91p Instrument Functions WLAN TX Measurements Demod Settings Dialog Box See also chapter 3.4, "Signal Processing of the IEEE 802.11b Application", on page 29 Remote command: [SENSe:]DEMod:FILTer:MODulation on page 187 Equalizer Filter Len. ← Filters (IEEE 802.11b, g) Specifies the length of the equalizer filter in chips Remote command: [SENSe:]DEMod:FILTer:EFLength on page 186 FFT Start Offset (IEEE 802.11a, g, j, p) This command specifies the FFT start offset.
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R&S® FSV-K91/91n/91ac/91p Instrument Functions WLAN TX Measurements Demod Settings Dialog Box "Auto, individu- All PPDUs are analyzed ally for each PPDU" "Meas only Mixed Mode" Only mixed mode PPDUs are analyzed "Meas only Greenfield" Only Greenfield mode PPDUs are analyzed. "Demod all as Mixed Mode" All PPDUs are analyzed as Mixed Mode PPDUs "Demod all as Greenfield" All PPDUs are analyzed as Greenfield PPDUs.
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R&S® FSV-K91/91n/91ac/91p Instrument Functions WLAN TX Measurements Demod Settings Dialog Box MCS Index define the Modulation and Coding Scheme (MCS) index, of the PPDUs taking part in the analysis, manually. This field is enabled for "MCS index to use" = "Meas only the specified MCS" or "Demod all with specified MCS". Remote command: [SENSe:]DEMod:FORMat:MCSIndex on page 194 Nsts to use (IEEE 802.11 ac only) Defines the the PPDUs taking part in the analysis depending on their Nsts.
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R&S® FSV-K91/91n/91ac/91p Instrument Functions WLAN TX Measurements Demod Settings Dialog Box Only PPDUs with the specified STBC field content are analyzed. "Meas only if STBC field = 1 (+1 Stream)""(M1)" (IEEE 802.11N) Only PPDUs with the specified STBC field content are analyzed. "Meas only if STBC field = 2 (+2 Stream)""(M2)" (IEEE 802.11N) "Demod all as STBC field = 1""(D1)"(IEEE 802.11N) All PPDUs are analyzed assuming the specified STBC field content. "Demod all as STBC field = 2""(D2)"(IEEE 802.
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R&S® FSV-K91/91n/91ac/91p Instrument Functions WLAN TX Measurements Demod Settings Dialog Box "Demod all as short" All PPDUs are demodulated assuming short guard interval length. "Demod all as long " All PPDUs are demodulated assuming long guard interval length. Remote command: CONFigure:WLAN:GTIMe:AUTO:TYPE on page 157 Extension spatial streams (sounding) (IEEE 802.11ac or n (MIMO) only) defines the Ness field content of the PPDUs taking part in the analysis.
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R&S® FSV-K91/91n/91ac/91p Instrument Functions WLAN TX Measurements Demod Settings Dialog Box "Guard Interval Guard Interval Center: The FFT start offset is placed to the center of the guard interval. Cntr" Remote command: [SENSe:]DEMod:FFT:OFFSet on page 186 4.3.3 MIMO Settings (IEEE 802.11ac, n (MIMO) only) The MIMO settings define the mapping between streams and antennas. This tab is only available if the standard IEEE 802.11ac or n (MIMO) is selected. Spatial Mapping Mode.........................
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R&S® FSV-K91/91n/91ac/91p Instrument Functions WLAN TX Measurements Softkeys of the Sweep Menu – SWEEP key  Tx1  Stream   Tx1 , STS.1 .    . .       . .     Tx  Stream  Tx , STS.1 .  4   4 Tx1 , STS.4  STS  Stream1    . .      . .   . Tx4 , STS.4  STS  Stream4  . Remote command: CONFigure:WLAN:SMAPping:TX<1...4> on page 162 CONFigure:WLAN:SMAPping:TX<1...4>:STReam<1...4> on page 162 CONFigure:WLAN:SMAPping:TX<1...4>:TIMeshift on page 163 4.
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R&S® FSV-K91/91n/91ac/91p Instrument Functions WLAN TX Measurements Softkeys of the Trace Menu – TRAC key 4.5 Softkeys of the Trace Menu – TRAC key The following table shows all softkeys available in the "Trace" menu in "WLAN" mode (TRACE key). It is possible that your instrument configuration does not provide all softkeys. If a softkey is only available with a special option, model or (measurement) mode, this information is delivered in the corresponding softkey description.
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R&S® FSV-K91/91n/91ac/91p Instrument Functions WLAN TX Measurements Softkeys of the Marker To Menu – MKR-> key Marker 1 Opens a dialog box to adjust the marker. The contents of the dialog box depend on the type of graph the marker is adjusted to. After every change, the marker position in the trace and the marker information are updated.
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R&S® FSV-K91/91n/91ac/91p Instrument Functions WLAN TX Measurements Softkeys of the Lines Menu – LINES key MKR -> Trace Opens an edit dialog box to enter the number of the trace, on which the marker is to be placed. This softkey is available for all result displays with more than one trace. Remote command: CALCulate:MARKer<1>:TRACe on page 142 4.8 Softkeys of the Lines Menu – LINES key The following table shows all softkeys available in the ""Lines"" menu in ""WLAN"" mode (LINES key).
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R&S® FSV-K91/91n/91ac/91p Instrument Functions WLAN TX Measurements Softkeys of the Input/Output Menu for WLAN Measurements └ Firmware Update.......................................................................................... 114 └ R&S Support................................................................................................. 114 └ DigIConf........................................................................................................
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R&S® FSV-K91/91n/91ac/91p Instrument Functions WLAN TX Measurements Softkeys of the Input/Output Menu for WLAN Measurements DigIConf ← EXIQ Starts the optional R&S DigIConf application. This softkey is only available if the optional software is installed. To return to the R&S FSV application, press any key on the front panel. The application is displayed with the "EXIQ" menu, regardless of which key was pressed.
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements 5 Remote Commands for WLAN TX Measurements This section describes the remote commands specific to the WLAN TX Measurements option (R&S FSV-K91/91n/91ac/91p). The abbreviation WLAN stands for the Wireless LAN operating mode. For details on conventions used in this chapter refer to chapter 5.1, "Notation", on page 117 at the beginning of this chapter.
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements Notation 5.16.3 Power vs Time – Full Burst and Rising/Falling Data................................................... 212 5.16.4 Spectrum Flatness...................................................................................................... 212 5.16.5 Spectrum Flatness 11n............................................................................................... 213 5.16.6 Spectrum Group Delay 11n........................
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements Notation Abbreviation Description A spectrum analysis A-F spectrum analysis – span > 0 only (frequency mode) A-T spectrum analysis – zero span only (time mode) ADEMOD analog demodulation (option R&S FSV-K7) BT Bluetooth (option R&S FSV-K8) CDMA CDMA 2000 base station measurements (option R&S FSV-K82) EVDO 1xEV-DO base station analysis (option R&S FSV-K84) GSM GSM/Edge measurements (option R&S FSV-K10) IQ IQ Analyzer mode
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements Notation SENSe:FREQuency:CW|:FIXed The two following commands with identical meaning can be created. They set the frequency of the fixed frequency signal to 1 kHz: SENSe:FREQuency:CW 1E3 SENSe:FREQuency:FIXed 1E3 A vertical stroke in parameter indications marks alternative possibilities in the sense of "or". The effect of the command differs, depending on which parameter is used.
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements ABORt Subsystem The numeric values associated to MAXimum/MINimum/DEFault can be queried by adding the corresponding keywords to the command. They must be entered following the quotation mark. Example: SENSe:FREQuency:CENTer? MAXimum Returns the maximum possible numeric value of the center frequency as result. This keyword is provided for commands the parameters of which consist of a binary data block. 5.
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements CALCulate:LIMit Subsystem (WLAN) 5.4 CALCulate:LIMit Subsystem (WLAN) The CALCulate:LIMit subsystem contains commands for the limit lines and the corresponding limit checks. CALCulate:LIMit<1>:ACPower:ACHannel?................................................................. 122 CALCulate:LIMit:ACPower:ACHannel:RESult........................................................ 122 CALCulate:LIMit<1>:ACPower:ALTernate?..............
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements CALCulate:LIMit Subsystem (WLAN) CALCulate:LIMit<1>:SPECtrum:MASK:CHECk:X?.......................................................137 CALCulate:LIMit<1>:SPECtrum:MASK:CHECk:Y?.......................................................138 CALCulate:LIMit<1>:UPPer[:DATA]............................................................................
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements CALCulate:LIMit Subsystem (WLAN) Example: CALC:LIM:ACP:ACH 30DB, 30DB Sets the relative limit value for the power in the lower and upper adjacent channel to 30 dB below the channel power. CALC:LIM:ACP:ACH:ABS -35DBM, -35DBM Sets the absolute limit value for the power in the lower and upper adjacent channel to -35 dB. CALC:LIM:ACP ON Switches on globally the limit check for the channel/adjacent channel measurement.
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements CALCulate:LIMit Subsystem (WLAN) Example: CALC:LIM:ACP:ALT2 30DB, 30DB Sets the relative limit value for the power in the lower and upper second alternate adjacent channel to 30 dB below the channel power. CALCulate:LIMit<1>:BURSt:ALL This command sets or returns all the limit values. Suffix: Return values: . 1...
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements CALCulate:LIMit Subsystem (WLAN) Suffix: Parameters: . 1...4 irrelevant numeric value in dB Example: CALC:LIM:BURS:EVM -25.0 Average EVM limit is set to -25 dB Mode: WLAN CALCulate:LIMit<1>:BURSt:EVM[:AVERage]:RESult? This command returns the average error vector magnitude limit result for the IEEE 802.11b standard. Suffix: Return values: . 1...
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements CALCulate:LIMit Subsystem (WLAN) CALCulate:LIMit<1>:BURSt:EVM:ALL[:AVERage]:RESult? This command returns the average error vector magnitude limit result. This is a combined figure that represents the pilot, data and the free carrier. Suffix: Return values: . 1...
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements CALCulate:LIMit Subsystem (WLAN) Return values: 0|1 0 PASSED 1 FAILED Example: CALC:LIM:BURS:EVM:ALL:MAX:RES? Maximum EVM for all carrier limit result is returned Usage: Query only Mode: WLAN CALCulate:LIMit<1>:BURSt:EVM:DATA[:AVERage] This command sets the average error vector magnitude limit summary for the data carrier. Suffix: Parameters: . 1...
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements CALCulate:LIMit Subsystem (WLAN) CALCulate:LIMit<1>:BURSt:EVM:DATA:MAXimum This command sets the maximum error vector magnitude limit summary for the data carrier. Suffix: Parameters: . 1...
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements CALCulate:LIMit Subsystem (WLAN) Example: CALC:LIM:BURS:EVM:MAX? Maximum EVM limit is returned Mode: WLAN CALCulate:LIMit<1>:BURSt:EVM:MAXimum:RESult? This command returns the maximum error vector magnitude limit result for the IEEE 802.11b standard. Suffix: Return values: . 1...
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements CALCulate:LIMit Subsystem (WLAN) Return values: 0|1 0 PASSED 1 FAILED Example: CALC:LIM:BURS:EVM:PIL:RES? Average EVM for pilot carrier limit result is returned Usage: Query only Mode: WLAN CALCulate:LIMit<1>:BURSt:EVM:PILot:MAXimum This command sets the maximum error vector magnitude limit summary for the pilot carriers. Suffix: Parameters: . 1...
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements CALCulate:LIMit Subsystem (WLAN) CALCulate:LIMit<1>:BURSt:FERRor[:AVERage] This command sets the average frequency error limit. Suffix: Parameters: . 1...4 irrelevant numeric value in Hertz Example: CALC:LIM:BURS:FERR 10000 The average frequency error limit is set to 10 kHz Mode: WLAN CALCulate:LIMit<1>:BURSt:FERRor[:AVERage]:RESult? This command returns the average frequency error limit result.
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements CALCulate:LIMit Subsystem (WLAN) Example: CALC:LIM:BURS:FERR:MAX:RES? Maximum frequency error limit result is returned Usage: Query only Mode: WLAN CALCulate:LIMit<1>:BURSt:IQOFfset[:AVERage] This command sets the average IQ Offset error limit. Suffix: Parameters: . 1...4 irrelevant Range: -1000000 to 1000000 Default unit: dB Example: CALC:LIM:BURS:IQOF -10.0 Average IQ Off set error limit is set to -10.
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements CALCulate:LIMit Subsystem (WLAN) CALCulate:LIMit<1>:BURSt:IQOFfset:MAXimum:RESult? This command returns the maximum IQ Offset error limit result. Suffix: . 1...4 irrelevant Example: CALC:LIM:BURS:IQOF:MAX:RES? Maximum IQ Offset error limit result is returned Usage: Query only Mode: WLAN CALCulate:LIMit<1>:BURSt:SYMBolerror[:AVERage] This command sets the average symbol error limit.
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements CALCulate:LIMit Subsystem (WLAN) Example: CALC:LIM:BURS:SYMB:MAX? Maximum symbol error limit is returned Mode: WLAN CALCulate:LIMit<1>:BURSt:SYMBolerror:MAXimum:RESult? This command returns the maximum symbol error limit result. Suffix: . 1...4 irrelevant Example: CALC:LIM:BURS:SYMB:MAX:RES? Maximum symbol error limit result is returned.
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements CALCulate:LIMit Subsystem (WLAN) Suffix: Parameters: . 1...4 irrelevant numeric value in seconds Example: CALC:LIM:BURS:TFALl:MAX 0.000001 The maximum fall time limit set to 1 µs. Mode: WLAN CALCulate:LIMit<1>:BURSt:TFALl:MAXimum:RESult? This command returns the maximum fall time limit result. Suffix: . 1...
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements CALCulate:LIMit Subsystem (WLAN) Mode: WLAN CALCulate:LIMit<1>:BURSt:TRISe:MAXimum This command sets the maximum rise time limit. Suffix: Parameters: . 1...4 irrelevant numeric value in seconds Example: CALC:LIM:BURS:TRIS:MAX 0.000001 Maximum rise time limit is set to 1 µs Mode: WLAN CALCulate:LIMit<1>:BURSt:TRISe:MAXimum:RESult? This command returns the maximum rise time limit result. Suffix: . 1...
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements CALCulate:LIMit Subsystem (WLAN) CALCulate:LIMit:FAIL? This command queries the result of a limit check. Note that for SEM measurements, the limit line suffix is irrelevant, as only one specific SEM limit line is checked for the currently relevant power class. To get a valid result, you have to perform a complete measurement with synchronization to the end of the measurement before reading out the result.
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements CALCulate:MARKer Subsystem (WLAN) Suffix: . 1...4 irrelevant Example: CALC:LIM:SPEC:MASK:CHEC:X? Returns the frequency at the maximum overstepping. Usage: Query only Mode: WLAN CALCulate:LIMit<1>:SPECtrum:MASK:CHECk:Y? This command returns the Y-value at the maximum overstepping of the spectrum mask limits. Suffix: . 1...4 irrelevant Example: CALC:LIM:SPEC:MASK:CHEC:Y? Returns the power at the maximum overstepping.
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements CALCulate:MARKer Subsystem (WLAN) The following subsystem is included: chapter 5.5.2, "CALCulate:MARKer:FUNCtion Subsystem (WLAN, R&S FSVK91/91n)", on page 144 5.5.1 Description of the CALCulate:MARKer Subsystem (WLAN, R&S FSV K91/91n).......139 5.5.2 CALCulate:MARKer:FUNCtion Subsystem (WLAN, R&S FSV-K91/91n)...................144 5.5.
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements CALCulate:MARKer Subsystem (WLAN) depends on mode irrelevant Example: CALC:MARK:AOFF Switches off all markers. Usage: Event Manual operation: See "Marker Off" on page 112 CALCulate:MARKer<1>:BSYMbol , This command positions the selected marker to the indicated symbol in the indicated burst. This command only applies to 802.
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements CALCulate:MARKer Subsystem (WLAN) Mode: WLAN, OFDM, OFDMA/WiBro Manual operation: See "Marker 1" on page 112 CALCulate:MARKer<1>:MAXimum This command sets the selected marker to the maximum peak value in the current trace. This command is only available for the Spectrum Flatness result display. Suffix: . 1...4 window Example: CALC2:MARK:MAX Set marker 1 in screen B to maximum value in trace.
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements CALCulate:MARKer Subsystem (WLAN) Example: CALC2:MARK:SYMB 2 Positions marker 1 in screen B to symbol 2. CALC2:MARK:SYMB? Outputs the symbol value of marker 1 in screen B. Mode: WLAN, OFDM, OFDMA/WiBro Manual operation: See "Marker 1" on page 112 CALCulate:MARKer<1>:TRACe This command assigns the selected marker to the indicated measurement curve in the selected measurement window.
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements CALCulate:MARKer Subsystem (WLAN) ● Constellation vs Carrier Suffix: Parameters: . 1...4 window 1 to Example: CALC:MARK:X 2ms Positions marker 1 in screen A to time 2ms.
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements CALCulate:MARKer Subsystem (WLAN) 5.5.2 CALCulate:MARKer:FUNCtion Subsystem (WLAN, R&S FSVK91/91n) The measurement window is selected by CALCulate 1 (screen A) or 2 (screen B). CALCulate:MARKer<1>:FUNCtion:POWer:RESult[:CURRent]?.................................... 144 CALCulate:MARKer<1>:FUNCtion:POWer:RESult:MAXHold?...................................... 144 CALCulate:MARKer<1>:FUNCtion:ZOOM......................................
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements CONFigure Subsystem (WLAN) Suffix: . 1...4 irrelevant Example: CALC:MARK:FUNC:POW:RES:MAXH? Usage: Query only Mode: WLAN Manual operation: See "Spectrum ACPR (IEEE 802.11a, ac, g (OFDM Turbo Mode), n, p)/ Spectrum ACP (IEEE 802.11b)/ ACP Rel/Abs (IEEE 802.11j)" on page 80 CALCulate:MARKer<1>:FUNCtion:ZOOM This command sets the magnification factor for the zoom.
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements CONFigure Subsystem (WLAN) CONFigure:BURSt:PREamble[:IMMediate].......................................................................148 CONFigure:BURSt:PREamble:SELect............................................................................. 148 CONFigure:BURSt:PVT[:IMMediate]................................................................................ 148 CONFigure:BURSt:PVT:AVERage.................................................
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements CONFigure Subsystem (WLAN) Parameters: -26 to 26 | ALL | PILOTS *RST: Example: ALL CONF:BURS:CONS:CARR:SEL Carrier -26 is selected. CONF:BURS:CONS:CARR:SEL Carrier 10 is selected. CONF:BURS:CONS:CARR:SEL All carriers are selected. CONF:BURS:CONS:CARR:SEL Pilots only. -26 10 ALL PIL Mode: WLAN Manual operation: See "Carrier Selection (IEEE 802.
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements CONFigure Subsystem (WLAN) Mode: WLAN Manual operation: See "EVM vs Symbol/Carrier" on page 69 CONFigure:BURSt:EVM:ESYMbol[:IMMediate] This remote control command configures the measurement type to be EVM vs Symbol. After this command has been executed, the specified measurement will only be started when the user issues the INITiate[:IMMediate] command. Example: CONF:BURS:EVM:ESYM Configures the EVM vs Symbol measurement type.
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements CONFigure Subsystem (WLAN) Mode: WLAN Manual operation: See "PVT" on page 64 CONFigure:BURSt:PVT:AVERage This remote control command configures the measurement type to set the burst power averaging length to the desired value. This command is only valid when the selected standard is IEEE 802.11b. Parameters: Example: CONF:BURS:PVT:AVER 31 Configures the burst power average length of 31.
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements CONFigure Subsystem (WLAN) Parameters: EDGE configures the measurement to be rising and falling edge FALL configures the measurement to be falling edge only (IEEE 802.11b & g (CCK)) FULL configures the measurement to be full burst ( IEEE 802.11a, j & g (OFDM) n, p, IEEE 802.11 Turbo Mode) RISE configures the measurement to be rising edge only ( IEEE 802.
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements CONFigure Subsystem (WLAN) CONFigure:BURSt:SPECtrum:FLATness[:IMMediate] This remote control command configures the measurement type to be Spectrum Flatness. After this command has been executed, the specified measurement will only be started when the user issues the INITiate[:IMMediate] command. Example: CONF:BURS:SPEC:FLAT Configures the Spectrum Flatness measurement type.
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements CONFigure Subsystem (WLAN) CONFigure:BURSt:SPECtrum:MASK[:IMMediate] This remote control command configures the measurement type to be Spectrum Mask. After this command has been executed, the specified measurement will only be started when the user issues the INITiate[:IMMediate] command Example: CONF:BURS:SPEC:MASK Configures the Spectrum Mask measurement type. Mode: WLAN Manual operation: See "Spectrum Mask (IEEE 802.
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements CONFigure Subsystem (WLAN) Mode: WLAN Manual operation: See "CCDF" on page 83 CONFigure:BURSt:STATistics:SFIeld[:IMMediate] This remote control command configures the measurement type to be Signal Field. After this command has been executed, the specified measurement will only be started when the user issues the INITiate[:IMMediate] command. Example: CONF:BURS:STAT:SFIeld Configures the Signal Field measurement type.
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements CONFigure Subsystem (WLAN) CONFigure:POWer:AUTO:SWEep:TIME This remote control command is used to specify the sweep time for the automatic power level detection. Parameters: numeric value in seconds *RST: 100ms Example: CONF:POW:AUTO:SWE:TIME 200MS Configures a 200 ms sweep time for the auto-level detection.
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements CONFigure Subsystem (WLAN) Parameters: 0|1|2|3|4|6|7 0 IEEE 802.11a 1 IEEE 802.11b 2 IEEE 802.11j (10 MHz) 3 IEEE 802.11j (20 MHz) 4 IEEE 802.11g 5 Turbo 6 IEEE 802.11n 7 IEEE 802.11n (MIMO) 8 IEEE 802.11ac 9 IEEE 802.11p *RST: 0 Example: CONF:STAN 0 Selects the IEEE 802.11a standard for the measurement.
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements CONFigure Subsystem (WLAN) Suffix: Parameters: . 1..4 Defines the receiver path. ANTENNA1 | ANTENNA2 Antenna assignment of the receiver path Example: CONF:WLAN:ANTM:ANT2 ANTENNA1 Manual operation: See "Assignment" on page 94 CONFigure:WLAN:ANTMatrix:STATe State This remote control command specifies the state of the receive path. Note, it is not possible to set the state of ANTMatrix1 (Master).
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements CONFigure Subsystem (WLAN) Parameters: The first burst is analyzed and subsequent bursts are analyzed only if they match FBURst The first burst is analyzed and subsequent bursts are analyzed only if they match ALL All bursts are analyzed M0 | M1 | M2 | M3 Measure only if Ness 0 | 1 | 2 | 3 D0 | D1 | D2| D3 Demod all as Ness 0 | 1 | 2 | 3 Example: CONF:WLAN:EXT:AUTO:TYPE? Manual operation: See "Extension spatial streams (so
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements CONFigure Subsystem (WLAN) Parameters: FBURst The guard length of the first PPDU is detected and subsequent bursts are analyzed only if they match. ("Auto, same type as first burst" in manual operation) ALL All PPDUs are analyzed regardless of guard length. ("Auto, individually for every burst" in manual operation) MS Only PPDUs with short guard interval length are analyzed.
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements CONFigure Subsystem (WLAN) Mode: WLAN (IEEE 802.11n) Manual operation: See "Guard Interval (IEEE 802.11n, SISO)" on page 100 CONFigure:WLAN:MIMo:CAPTure Specifies the signal path to be captured in MIMO sequential manual measurements. Subsequently, use the INITiate[:IMMediate] command to start capturing data.
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements CONFigure Subsystem (WLAN) Mode: WLAN (IEEE 802.11ac/n (MIMO)) Manual operation: See "Signal Capture" on page 94 CONFigure:WLAN:OSP:ADDRess
Specifies the TCP/IP address of the switch unit to be used for automated sequential MIMO measurements. The supported unit is Rohde & Schwarz OSP 1505.3009.03 with module option 1505.5101.02 Parameters: TCP/IP address in dotted IPV4 format Example: CONF:WLAN:MIM:OSP:ADDR '192.168.
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements CONFigure Subsystem (WLAN) CONFigure:WLAN:PVERror:MRANge This remote control command specifies whether the Peak Error Vector results are calculated over the complete burst or just over the PSDU. This command is supported for 802.11b and 802.11g only.
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements CONFigure Subsystem (WLAN) CONFigure:WLAN:SMAPping:NORMalise This remote control command specifies whether an amplification of the signal power due to the spatial mapping is performed according to the matrix entries. If this command it set to ON then the spatial mapping matrix is scaled by a constant factor to obtain a passive spatial mapping matrix which does not increase the total transmitted power.
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements DISPlay Subsystem (WLAN) Manual operation: See "User Defined Spatial Mapping" on page 109 CONFigure:WLAN:SMAPping:TX<1...4>:TIMeshift This remote control command specifies the timeshift for a specific antenna. Suffix: TX<1...4> Parameters: . Defines the TX antenna Time shift (in s) for specification of user defined CSD (cyclic delay diversity) for the Spatial Mapping.
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements DISPlay Subsystem (WLAN) DISPlay[:WINDow]:TRACe:Y[:SCALe]:RLEVel[:RF]................................................ 167 DISPlay[:WINDow]:TRACe:Y[:SCALe]:RLEVel:IQ................................................... 167 DISPlay[:WINDow]:TRACe:Y[:SCALe]:RLEVel:OFFSet........................................... 168 DISPlay[:WINDow][:SUBWindow]:SIZE This command configures the measurement display. Suffix: .
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements DISPlay Subsystem (WLAN) Suffix: . 1|2 window; 1=A, 2=B Parameters: *RST: 1 Example: DISP:WIND1:SSEL Sets the screen A active. Mode: WLAN Manual operation: See "Screen Focus A/B" on page 111 DISPlay[:WINDow]:TABLe This command selects whether the results table is displayed. Suffix: Parameters: .
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements DISPlay Subsystem (WLAN) Parameters: ON | OFF *RST: ON Example: DISP:WIND2:TRAC:Y:SCAL:AUTO ON Switches on automatic scaling of the Y-axis for the active trace Mode: WLAN Manual operation: See "Y-Axis/Div" on page 75 DISPlay[:WINDow]:TRACe:Y[:SCALe]:PDIVision This command sets the size of each Y scale division for the specified trace display.
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements DISPlay Subsystem (WLAN) Usage: Query only SCPI confirmed Mode: WLAN Manual operation: See "Ref Level " on page 92 DISPlay[:WINDow]:TRACe:Y[:SCALe]:RLEVel[:RF] This command can be used to retrieve or set the current internal instrument reference level for RF input used when performing measurements. Suffix: . 1|2 irrelevant 1...
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements FETCh Subsystem (WLAN) DISPlay[:WINDow]:TRACe:Y[:SCALe]:RLEVel:OFFSet This command specifies the external attenuation/gain applied to measurements. The value corresponds to the reference level offset in the spectrum analyzer mode. Suffix: . 1|2 irrelevant 1...
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements FETCh Subsystem (WLAN) , , , , , , , Returned values for IEEE 802.
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements FETCh Subsystem (WLAN) FETCh:BURSt:EVM:PILot:MAXimum?............................................................................. 172 FETCh:BURSt:EVM:PILot:MINimum?.............................................................................. 172 FETCh:BURSt:FERRor:AVERage?..................................................................................173 FETCh:BURSt:FERRor:MAXimum?.......................................................
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements FETCh Subsystem (WLAN) Example: FETC:BURS:BERP:DATA:MAX? Usage: Query only Mode: WLAN FETCh:BURSt:COUNt[:ALL]? This command returns the number of analyzed bursts. Example: FETC:BURS:COUN? The analyzed number of bursts is returned.
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements FETCh Subsystem (WLAN) Example: FETC:BURS:EVM:ALL:MAX? The maximum EVM recorded for all measurement carrier is returned. Usage: Query only Mode: WLAN FETCh:BURSt:EVM:DATA:AVERage? FETCh:BURSt:EVM:DATA:MAXimum? FETCh:BURSt:EVM:DATA:MINimum? This command returns the error vector magnitude measurement results summary for the data carrier (average, minimum or maximum value) in dB.
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements FETCh Subsystem (WLAN) FETCh:BURSt:FERRor:AVERage? FETCh:BURSt:FERRor:MAXimum? FETCh:BURSt:FERRor:MINimum? This command returns the measured average, minimum or maximum frequency errors in Hertz. Example: FETC:BURS:FERR:MAX? The maximum frequency error from the most recent measurement is returned.
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements FETCh Subsystem (WLAN) FETCh:BURSt:PEAK? This command returns the Peak power in dBm measured during the measurement time. Example: FETC:BURS:PEAK? The calculated peak power from the most recent measurement is returned. Usage: Query only Mode: WLAN FETCh:BURSt:PREamble? This command returns the measured power in the burst preamble.
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements FETCh Subsystem (WLAN) FETCh:BURSt:SYMBolerror:AVERage? FETCh:BURSt:SYMBolerror:MAXimum? FETCh:BURSt:SYMBolerror:MINimum? This command returns the percentage of symbols that were outside permissible demodulation range within a burst. Example: FETC:BURS:SYMB:MAX? The maximum number of symbols that were out of range per burst.
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements FORMat Subsystem 5.9 FORMat Subsystem FORMat[:DATA] This command selects the data format for the data transmitted from the R&S FSV to the controlling computer. It is used for the transmission of trace data. The data format of trace data received by the instrument is automatically recognized, regardless of the format which is programmed. (See also TRACe[:DATA]? on page 209).
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements INPut Subsystem Manual operation: See "Run Single/Cont" on page 110 INITiate[:IMMediate] The command initiates a new measurement sequence. With sweep count > 0 or average count > 0, this means a restart of the indicated number of measurements. With trace functions MAXHold, MINHold and AVERage, the previous results are reset on restarting the measurement.
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements INPut Subsystem Example: INP:ATT 30dB Sets the attenuation on the attenuator to 30 dB and switches off the coupling to the reference level. Mode: all Manual operation: See "Ext Att " on page 89 See "Attenuation " on page 93 INPut:DIQ:RANGe[:UPPer] Defines or queries the "Full Scale Level", i.e. the level that should correspond to an I/Q sample with the magnitude "1".
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements INSTrument Subsystem (WLAN) INPut:SELect This command selects the signal source for measurements. Parameters: RF | DIQ RF Radio Frequency ("RF INPUT" connector) DIQ Digital IQ (only available with R&S Digital I/Q Interface, option R&S FSV-B17) *RST: RF Example: INP:SEL RF Mode: A, IQ, NF, TDS, VSA, CDMA, EVDO, WCDMA, ADEMOD, GSM, OFDM, OFDMA/WiBro, WLAN Manual operation: See "Input" on page 91 5.
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements MMEMory Subsystem (WLAN) MMEMory:LOAD:IQ:STATe............................................................................................ 180 MMEMory:LOAD:SEM:STATe 1,..................................................................................... 180 MMEMory:STORe:IQ:STATe..........................................................................................
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements SENSe Subsystem (WLAN) 5.14 SENSe Subsystem (WLAN) The SENSe command is used to set and get the values of parameters in the remote instrument. The get variant of the SENSe command differs from set in that it takes no parameter values (unless otherwise stated) but is followed by the character '?' and will return the parameter's value in the same format as it is set. 5.14.1 Analysis modulation format.........................................
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements SENSe Subsystem (WLAN) 'QAM1636' IEEE 802.11a, g (OFDM), j (20 MHz) & Turbo Quadrature Amplitude Modulation at 36 Mbps 'QAM1639' IEEE 802.11n Quadrature Amplitude Modulation at 39 Mbps 'QAM16289' IEEE 802.11n Quadrature Amplitude Modulation at 28.9 Mbps 'QAM16433' IEEE 802.11n Quadrature Amplitude Modulation at 43.3 Mbps 'QAM6424' EEE 802.11j (10 MHz) Quadrature Amplitude Modulation at 24 Mbps 'QAM6427' IEEE 802.
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements SENSe Subsystem (WLAN) [SENSe:]BURSt:COUNt:STATe.......................................................................................185 [SENSe:]DEMod:CESTimation........................................................................................ 185 [SENSe:]DEMod:FFT:OFFSet......................................................................................... 186 [SENSe:]DEMod:FILTer:CATalog?.......................................
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements SENSe Subsystem (WLAN) Parameters: FBURst The channel bandwidth of the first valid bursts is detected and subsequent bursts are analyzed only if they have the same channel bandwidth. ALL All bursts are analyzed regardless of their channel bandwidth MB20 Only bursts with a channel bandwidth of 20MHzare analyzed MB40 Only PPDUs within a channel bandwidth of 40MHz are analyzed (IEEE 802.
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements SENSe Subsystem (WLAN) Manual operation: See "Filter adjacent channels (IEEE 802.11ac, n (MIMO))" on page 102 [SENSe:]BURSt:COUNt This command defines the number of bursts that will be analyzed by the measurement. This parameter is ignored if the setting for the [SENSe:]BURSt:COUNt:STATe on page 185 parameter is off. Parameters: *RST: 1 Example: BURS:COUN 16 Sets the number of bursts to 16.
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements SENSe Subsystem (WLAN) Manual operation: See "Channel Estimation Range (IEEE 802.11a, ac, g (OFDM), j, n, p)" on page 101 [SENSe:]DEMod:FFT:OFFSet This command specifies the FFT start offset. Parameters: AUTO The FFT start offset is automatically chosen to minimize the intersymbol interference. GICenter Guard Interval Center: The FFT start offset is placed to the center of the guard interval.
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements SENSe Subsystem (WLAN) [SENSe:]DEMod:FILTer:MODulation , This command selects the TX and RX filters. The names of the filters correspond to the file names; a query of all available filters is possible by means of the [SENSe: ]DEMod:FILTer:CATalog? on page 186 command.
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements SENSe Subsystem (WLAN) Parameters: DIRECT | LONG-OFDM | SHORT-OFDM | LONG | SHORT | MM20 | GFM20 | MM40 | GFM40 DIRECT IEEE 802.11a, p, IEEE 802.11j (10MHz), IEEE 802.11j (20MHz), IEEE 802.11g, 802.11 OFDM Turbo – Direct Link Burst LONG-OFDM IEEE 802.11g – Long DSSS OFDM SHORT-OFDM IEEE 802.11g – Short DSSS OFDM LONG IEEE 802.11b, IEEE 802.11g – Long PLCP Burst SHORT IEEE 802.11b, IEEE 802.11g – Short PLCP Burst MM20 IEEE 802.
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements SENSe Subsystem (WLAN) Parameters: FBURst The format of the first valid PPDU is detected and subsequent PPDUs are analyzed only if they have the same format (corresponds to "Auto, same type as first PPDU") ALL All PPDUs are analyzed regardless of their format (corresponds to "Auto, individually for each PPDU") MNHT Only PPDUs with format "Non-HT" are analyzed (IEEE 802.
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements SENSe Subsystem (WLAN) Parameters: ON | OFF *RST: OFF Example: DEM:FORM:BAN:DBYTes:EQU ON Only bursts of equal length will take part in the measurement analysis. Mode: WLAN Manual operation: See "Equal PPDU Length" on page 100 [SENSe:]DEMod:FORMat:BANalyze:DBYTes:MAX This command specifies the maximum number of data bytes required for bursts to qualify for measurement analysis.
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements SENSe Subsystem (WLAN) Mode: WLAN Manual operation: See "Payload Length (IEEE 802.11b, g)" on page 102 See "Min Payload Length (IEEE 802.11b, g)" on page 102 [SENSe:]DEMod:FORMat:BANalyze:DURation:EQUal When this command is set to ON then only bursts of equal length will take part in the PVT analysis.
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements SENSe Subsystem (WLAN) If the [SENSe:]DEMod:FORMat:BANalyze:DURation:EQUal on page 191 command has been set to true then this command specifies the exact duration required for a burst to take part in measurement analysis. If the [SENSe:]DEMod:FORMat:BANalyze:DBYTes:EQUal on page 189 command is set to false this command specifies the minimum duration required for a burst to take part in measurement analysis.
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements SENSe Subsystem (WLAN) Example: DEM:FORM:BAN:SYM:MAX 1300 Only bursts which contain a maximum symbol count of 1300 are analyzed. Mode: WLAN Manual operation: See "Max Data Symbols (IEEE 802.11a, ac, j, n, p)" on page 101 [SENSe:]DEMod:FORMat:BANalyze:SYMBols:MIN This command specifies the number of data symbols required for bursts to qualify for measurement analysis.
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements SENSe Subsystem (WLAN) [SENSe:]DEMod:FORMat:BTRate The remote control command is used to specify the bit rate for IEEE 802.11b signals. This command can be used as an alternative to [SENSe:]DEMod:FORMat: BANalyze on page 187. The bit rate can be set as follows: Parameters: 10 | 20 | 55 | 110 10 1 Mbit/s 20 2 Mbit/s 55 5.
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements SENSe Subsystem (WLAN) Parameters: FBURst The MCS index of the first burst is detected and subsequent bursts are analyzed only if they have the same MCS index ALL All valid bursts are analyzed according to their individual MCS indexes MEASure Only bursts with an MCS index which matches that supplied by SENSe:]DEMod:FORMat:MCSIndex will be analyzed DEMod All bursts will be anayzed according to the MCS index specified by [SENSe:
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements SENSe Subsystem (WLAN) Parameters: FBURst | ALL | MEASure | DEMod FBURst The Nsts of the first PPDU is detected and subsequent PPDUs are analyzed only if they have the same Nsts (corresponds to "Auto, same type as first PPDU") ALL All recognized PPDUs are analyzed according to their individual Nsts (corresponds to "Auto, individually for each PPDU") MEASure Only PPDUs with the Nsts specified by [SENSe:]DEMod: FORMat:NSTSindex a
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements SENSe Subsystem (WLAN) However, for signals in which the PPDU power levels differ significantly, this option should be disabled as otherwise some PPDUs may not be detected. Parameters: ON | OFF | 0 | 1 ON | 1 A coarse burst search is performed based on the power levels of the input signal. OFF | 0 No pre-evaluation is performed, the entire signal is processed. *RST: Manual operation: 1 See "Power Interval Search (IEEE 802.
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements SENSe Subsystem (WLAN) [SENSe:]POWer:SEM:CLASs This command sets the Spectrum Emission Mask (SEM) power class index. The index represents the power classes to be applied. The index is directly related to the entries displayed in the power class drop down combo box, within the SEM settings configuration page.
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements SENSe Subsystem (WLAN) Table 5-1: Supported IEEE standards Manual operation The spectrum emission mask measurement is performed according to the standard Parameter value IEEE 802.11n-2009 20M@2.4G IEEE Std 802.11n™-2009 IEEE Figure 20-17—Transmit spectral mask for 20 MHz transmission or IEEE 802.11n-2009 40M@2.4G IEEE Std 802.11n™-2009 'IEEE_2009_40_2_4' IEEE 802.11n-2009 20M@5G IEEE Std 802.
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements SENSe Subsystem (WLAN) [SENSe:]POWer:SEM:TRACe:REDuction This command specifies how trace reduction is performed for the Spectrum Emission Mask (SEM) measurement. Parameters: PEAK For each frequency range, the peak detector is used to determine the corresponding trace value. This was the behaviour for the SEM measurement in R&S FSV-K91 versions before 1.70.
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements SENSe Subsystem (WLAN) Usage: SCPI confirmed Mode: WLAN Manual operation: See "Sweep Count " on page 90 [SENSe:]SWEep:EGATe This command switches on/off the sweep control by an external gate signal. If the external gate is selected the trigger source is automatically switched to EXTernal as well. In case of measurement with external gate, the measured values are recorded as long as the gate is opened.
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements SENSe Subsystem (WLAN) Parameters: *RST: 2000 Example: SWE:EGAT:HOLD:SAMP 2500 Sets a delay of 2500 samples in the capture buffer. Mode: WLAN [SENSe:]SWEep:EGATe:LENGth[:TIME] This command defines the gate time in the capture buffer in time units. The range of this value is dependent on the last run measurement.
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements SENSe Subsystem (WLAN) [SENSe:]SWEep:TIME This command defines the sweep time. The range depends on the frequency span. Parameters: refer to data sheet *RST: (automatic) Example: SWE:TIME 10s Manual operation: See "Capture Time " on page 89 [SENSe:]SWEep:EGATe:TYPE This command sets the type of triggering (level or edge) by the external gate signal.
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements STATus Subsystem (WLAN) Parameters: ON | OFF *RST: ON Example: TRAC:PHAS ON Specifies that the measurement results should be compensated for phase. Mode: WLAN Manual operation: See "Phase" on page 102 [SENSe:]TRACking:PILots This command configures how the pilots of the signal is determined. Parameters: STANdard The pilot of the signal is determined as defined by the standard.
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements STATus Subsystem (WLAN) STATus:QUEStionable[:EVENt]?.....................................................................................206 STATus:QUEStionable:ACPLimit[:EVENt]........................................................................ 206 STATus:QUEStionable:LIMit[:EVENt].................................................................206 STATus:QUEStionable:SYNC[:EVENt]?..............................................
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements STATus Subsystem (WLAN) STATus:QUEStionable[:EVENt]? This command queries the contents of the EVENt part of the STATus:QUEStionable register. The EVENt part indicates whether an event has occurred since the last reading, it is the "memory" of the condition part. It only indicates events passed on by the transition filters. It is permanently updated by the instrument. This part can only be read by the user. Reading the register clears it.
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements STATus Subsystem (WLAN) Usage: Query only SCPI confirmed Mode: WLAN STATus:QUEStionable:ACPLimit:ENABle STATus:QUEStionable:LIMit:ENABle STATus:QUEStionable:SYNC:ENABle? Determines whether the EVENt bit of the associated status register contributes to the sum bit of the STATus:QUEStionable register. Each bit of the EVENt part is "ANDed" with the associated ENABle bit.
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements TRACe Subsystem (WLAN) Usage: Query only SCPI confirmed Mode: WLAN STATus:QUEStionable:ACPLimit:PTRansition STATus:QUEStionable:LIMit:PTRansition STATus:QUEStionable:SYNC:PTRansition? This bit acts as a transition filter. When a bit of the CONDition part of the associated status register for the result type is changed from 0 to 1, the PTR bit decides whether the EVENt bit is set to 1.
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements TRACe Subsystem (WLAN) 5.16.8 Statistics Bitstream Data............................................................................................. 214 5.16.9 Statistics CCDF – Complementary Cumulative Distribution Function.........................214 5.16.10 Statistics Signal Field Data......................................................................................... 215 5.16.11 EVM vs Carrier...............................
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements TRACe Subsystem (WLAN) Query parameters: TRACE1 | TRACE2 | TRACE3 | TRACE4 | TRACE5 | TRACE6 | LIST For details on the parameters refer to the corresponding measurement type (see list above). Example: TRAC? TRACE2 The measurement data for the selected graph is returned. Usage: Query only SCPI confirmed Mode: WLAN TRACe:IQ:SRATe This command allows the sample rate for IQ measurements to be specified.
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements TRACe Subsystem (WLAN) 5.16.2 I/Q Measurements There are a number of measurements that can be performed in I/Q mode. No data is returned for any of the following measurements, should it be requested, until a measurement belonging to the I/Q group has been run. Running a frequency sweep measurement, for example Spectrum Mask, does not generate results for this measurement group. 5.16.2.
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements TRACe Subsystem (WLAN) 5.16.3 Power vs Time – Full Burst and Rising/Falling Data Both measurement results are again simply slightly different views of the same results data. All complete bursts within the capture time are analyzed in three master bursts. The three master bursts relate to the minimum, maximum and average values across all complete bursts. This data is returned in dBm values on a per sample basis.
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements TRACe Subsystem (WLAN) Spectrum flatness provides two basic graph types: an absolute power value graph (ABS) and a relative group delay graph. Both are plotted on a per carrier basis. All 52 carriers are drawn, in addition to the unused 0 carrier. Both the absolute power and group delay graph groups allow all the data points to be returned as one trace and an average of all the channels as the other trace.
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements TRACe Subsystem (WLAN) carriers if the average trace is selected or a repeating group of 57 carriers if all the data is requested. TRACE1 Group Delay All analyzed trains TRACE2 Group Delay Average trace Group delay results are returned in ns. Supported data formats (FORMat:DATA): ASCii|REAL 5.16.7 Spectrum FFT All FFT points are returned if the data for this measurement is requested.
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements TRACe Subsystem (WLAN) Probability data is returned up to the power level that contains at least one sample. It is highly unlikely that the full 201 data values will ever be returned. Each probability value is returned as a floating point number, with a value less than 1. Supported data formats (see FORMat[:DATA] on page 176): ASCii|REAL 5.16.
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements TRACe Subsystem (WLAN) 5.16.13 Error vs Preamble Three traces types are available with this measurement. The basic trace types show either the minimum, mean or maximum frequency or phase value as measured over the preamble part of the burst. Supported data formats (see FORMat[:DATA] on page 176): ASCii|REAL 5.16.14 Frequency Sweep Measurements Currently, there is only one measurement that is performed in frequency sweep mode.
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements TRIGger Subsystem (WLAN) is therefore a fixed value. Only an array of Y data is returned. TRACE1 is used for these measurement results. Supported data formats (see FORMat[:DATA] on page 176): ASCii|REAL TRACE1 Clear write values TRACE2 Max hold values 5.17 TRIGger Subsystem (WLAN) The trigger subsystem is used to synchronize device action(s) with events. TRIGger[:SEQuence]:HOLDoff......................................................
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements TRIGger Subsystem (WLAN) Example: TRIG:SOUR IFP Sets the IF power trigger source. TRIG:IFP:HOLD 200 ns Sets the holding time to 200 ns. Manual operation: See "Trigger Holdoff" on page 90 TRIGger[:SEQuence]:IFPower:HYSTeresis This command sets the limit that the hysteresis value for the IF power trigger has to fall below in order to trigger the next measurement. Suffix: .
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements TRIGger Subsystem (WLAN) Parameters: IMMediate | EXTernal | POWer | PSENsor | RFPower IMMediate No triggering is performed. This corresponds to the Free Run trigger mode. EXTernal The next measurement is triggered by the signal at the external trigger input e.g. a gated trigger. POWer The next measurement is triggered by signals outside the measurement channel.
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements UNIT Subsystem (K91) TRIGger[:SEQuence]:LEVel:POWer:AUTO This command specifies whether or not an automatic power trigger level calculation is performed before each main measurement. The setting of this command is ignored if the setting for the TRIGger[:SEQuence]:MODE on page 218 command is not POWer.
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements Status Reporting System (Option R&S FSV-K91) Parameters: DB | PCT DB Gain imbalance results returned in dB PCT Gain imbalanceresults returned in % *RST: DB Example: UNIT:EVM PCT Gain imbalance results to be returned in %. Mode: WLAN UNIT:PREamble This command specifies the units for preamble error results.
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements Status Reporting System (Option R&S FSV-K91) The commands to query the contents of the following status registers are described in chapter 5.15, "STATus Subsystem (WLAN)", on page 204. Operating Manual 1176.7649.
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements Status Reporting System (Option R&S FSV-K91) 15 not used 15 14 14 13 12 11 10 9 8 not used HCOPy in progress 7 13 ALT2 LOWer FAIL (Screen B) 12 ALT2 UPPer FAIL (Screen B) 11 ALT1 LOWer FAIL (Screen B) 10 ALT1 UPPer FAIL (Screen B) 9 ADJ LOWer FAIL (Screen B) 8 ADJ UPPer FAIL (Screen B) 4 MEASuring 3 2 1 0 CALibrating not used 5 15 4 14 3 13 15 2 12 14 1 11 13 0 10 12 9 11 8 10 7 9 LIMit 8 FAI
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements Status Reporting System (Option R&S FSV-K91) 5.19.1 STATus:OPERation Register......................................................................................224 5.19.2 STATus:QUEStionable Register................................................................................. 224 5.19.3 STATus:QUEStionable:LIMit Register........................................................................ 225 5.19.
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements Status Reporting System (Option R&S FSV-K91) Bit No. Meaning 5 FREQuency The bit is set if a frequency is questionable (see STATus:QUEStionable:FREQuency register in the base unit description). Not available from the R&S FSV-K91 option. 6 to 7 Not used 8 CALibration The bit is set if a measurement is performed unaligned ("UNCAL" display) 9 LIMit (device-specific) This bit is set if a limit value is violated (see chapter 5.19.
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements Status Reporting System (Option R&S FSV-K91) Bit No Meaning 3 LIMit FAIL This bit is set if the Spectrum Flatness (Upper) limit line is violated. 4 LIMit FAIL This bit is set if the Spectrum Flatness (Lower) limit line is violated. 5 LIMit FAIL This bit is set if the IEEE Spectrum Mask limit line is violated. 6 LIMit FAIL This bit is set if the PVT Rising Edge max limit is violated.
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R&S® FSV-K91/91n/91ac/91p Remote Commands for WLAN TX Measurements Status Reporting System (Option R&S FSV-K91) Bit No. Meaning 6 Auto level NoSIGnal This bit is set if no signal is detected by the auto-level measurement 7 - 14 These bits are not used. 15 This bit is always 0. 5.19.5 STATus:QUEStionable:ACPLimit Register This register contains information about the observance of limits during adjacent power measurements.
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R&S® FSV-K91/91n/91ac/91p List of Commands List of Commands [SENSe:]BANDwidth:CHANnel:AUTO:TYPE................................................................................................ 183 [SENSe:]BANDwidth[:RESolution]:FILTer..................................................................................................... 184 [SENSe:]BURSt:COUNt.................................................................................................................................
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R&S® FSV-K91/91n/91ac/91p List of Commands [SENSe:]TRACking:TIME.............................................................................................................................. 204 ABORt............................................................................................................................................................120 CALCulate:BURSt[:IMMediate]................................................................................................................
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R&S® FSV-K91/91n/91ac/91p List of Commands CALCulate:MARKer<1>:BSYMbol...........................................................................................................140 CALCulate:MARKer<1>:CARRier........................................................................................................... 140 CALCulate:MARKer<1>:FUNCtion:POWer:RESult:MAXHold?...............................................................144 CALCulate:MARKer<1>:FUNCtion:POWer:RESult[:CURRent]?.........
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R&S® FSV-K91/91n/91ac/91p List of Commands CONFigure:WLAN:OSP:ADDRess................................................................................................................ 160 CONFigure:WLAN:OSP:MODule...................................................................................................................160 CONFigure:WLAN:PAYload:LENgth:SRC.....................................................................................................160 CONFigure:WLAN:PVERror:MRANge.............
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R&S® FSV-K91/91n/91ac/91p List of Commands FETCh:BURSt:IQOFfset:MAXimum?............................................................................................................ 173 FETCh:BURSt:IQOFfset:MINimum?..............................................................................................................173 FETCh:BURSt:PAYLoad?............................................................................................................................. 173 FETCh:BURSt:PEAK?...............
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R&S® FSV-K91/91n/91ac/91p List of Commands STATus:QUEStionable:SYNC[:EVENt]?....................................................................................................... 206 STATus:QUEStionable[:EVENt]?.................................................................................................................. 206 TRACe:IQ:DATA:MEMory ?.......................................................................................................................... 210 TRACe:IQ:SRATe................
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R&S® FSV-K91/91n/91ac/91p Index Index A Amplitude menu K91/91n ...................................................................... 64 Attenuation Manual ...................................................................... 177 Importing I/Q data (remote) ...................................................... 180 Input sample rate Digital IQ ..................................................................... 92 Input/Output menu WLAN ..................................................................
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R&S® FSV-K91/91n/91ac/91p P Peak EVM (IEEE) .............................................................. 48 Power Interval search .......................................................... 108 Power interval search ...................................................... 196 PPDU Nsts ........................................................................... 106 Nsts (IEEE 802.11 ac) ...................................... 106, 195 Power search ....................................................
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R&S® FSV-K91/91n/91ac/91p Index RF Atten Manual (remote control) ............................ 177 Rising & Falling (remote control, WLAN) .................. 149 Screen A/B (remote control, WLAN) ......................... 164 Settings General/Demod (remote control, WLAN) .... 166 Signal Field (remote control, WLAN) ........................ 153 Single Meas (remote control) .................................... 176 Single Sweep (remote control) .................................