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Rohde & Schwarz SCPI Driver

Project description

Rohde&Schwarz Python SCPI Driver


  • Example python drivers

    • FSW, Vector Spectrum Analyzer
    • SMW, Vector Signal Generator
    • NRP, Power Sensor
    • VSE, Vector Signal Explorer
    • VST, Vectro Signal Transciever (Calls to FSW & SMW)
    • OSP, Switch Driver
    • NRQ, Frequency Selective Power Sensor
  • Example code

    • Automated test examples (see below table)
    • Instrument speed/repeatability evaluation
    • Proof of concept/Demo code
  • RSSD is in development

    • Package APIs *may- change.
    • We recommend users "freeze/save" package version prior to use.
    • SW is provided as is

Getting Started


python -m pip install rssd


  • Load example files in <Python Install Directory>\Lib\site-packages\rssd\examples

    python -m pip show rssd
  • Change IP address to match instrument(s)

  • Run

Example Code

FileName Instrumnt Description
AAA_CommandTime Any Time command to instrument
AAA_IDN_IPArry Any Send *IDN to instruments in IPArry
FSW_ACLR_Timing VSA ACLR in Spectral Mode
FSW_ACLR_IQ_Timing VSA ACLR in IQ Analyzer
FSW_CCDF VSA CCDF in Spectral Mode
FSW_IQCaptureTime VSA IQ Capture time looping Fs
NRP_AvGPwr NRP NRP Average power capture
NRP_BufferedContAvg NRP Bufferened NRP measurement VSG Load Arb file into SMW
OSP_Debug OSP Generic OSP example VSE VSE/FSW Analog FM Demod VSE VSE Raw SCPI VSE VSE Single OFDM Carrier EVM w/ K96 VSE VSE Multi OFDM Carrier EVM w/ K96
VST_5GNR_EVM VSG VSA SMW/FSW K144 speed tests
VST_5GNR_K144_Read VSG VSA SMW/FSW Read 5G NR Parametes VSG VSA SMW/FSW Frequency Sweep
VST_WLAN_EVM VSG VSA SMW/FSW 802.11 EVM sweep test


Driver Structure

  • Driver Structure:
    • Common Driver Call: pyvisa → → <instr> →
    • Instrument Options: pyvisa → → <instr> → <instr>_<OptionName>
  • yaVISA: pyvisa wrapper
    • yaVISA.jav_Open(sFileName, sLogFile): Open VISA link
    • yaVISA.write(sSCPI): Write SCPI command
    • yaVISA.query(sSCPI): Query SCPI command
    • yaVISA.jav_logscpi(): Turn on "SCPI to file"
    • yaVISA.jav_OPC_Wait(sCmd): Wait for longer commands.
    • Please see * for full list of commands.

Specific Instrument Drivers

  • FSW: Vector Spectrum Analyzer
    • Developed & Tested with FSW
    • FSW & VSE share many commands.
    • Possible compatibility: VSE; FPS; FSV;
  • SMW: Vector Signal Generator
    • Developed & Tested with SMW
    • Possible compatibility: SGS; SGT; SMB; SMBV
  • NRP: Power Sensor
    • Developed & Tested with NRPxxS/SN sensors
  • VSE: Vector Signal Explorer SW
    • Developed & Tested with VSE
    • Drivers represent VSE commands not in FSW code
    • OFDMVSA K96 code resides here as well
    • Possible compatibility: FSW
  • VST: Vector Signal Transceiver
    • Code that calls both SMW & FSW
    • Currently 5GNR; LTE; WLAN implemented
  • OSP: Open Switch and Control Platform
    • Developed & Tested with OSP120

Instrument Documentation

Driver Description User Manual Models
SMW Vector Signal Generator User Manual SMW; SMBV; SGT; SGS; SMA-B; SMB-B; SMF
FSW Vector Signal Analyzer User Manual FSW; FSWP; FSVA; FPL;
VSE Vector Analysis Software User Manual VSE
CMW Basestation Emulator User Manual CMW500; CMW100; CMP200
NRP Three Path Power Sensor User Manual NRP; NRPM
NRQ Freq Selective Pwr Sensor User Manual NRQ
OSP Switch Matrix User Manual OPS1xx; OPS2xx
VNA Network Analyzer User Manual ZVA; ZNA; ZNB
[N/A] Digital Oscillocope User Manual RTP; RTO;
[N/A] Radiated Chambers User Manual ATS800; ATS1000; ATS1800; CMQ; DST200; TS7124


  • Code Repository: GitHub
  • Author: Martin C Lim
  • License: This project is licensed under the R&S License for Royalty-Free Products- see the LICENSE file for details


Project details

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