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On the Keysight NFA Series of Noise Figure Analyzers is it possible to query the RF attenuator range while in the auto range mode?

The command to query the Keysight NFA RF attenuator while in the auto ranging mode is:

DIAG:BLU:RF:RANG?

The command will return a value of:

  • 0 for 0 dB attenuation
  • 1 for 5 dB attenuation
  • 2 for 10 dB attenuation
  • 3 for 15 dB attenuation
  • 4 for 20 dB attenuation
  • 5 for 25 dB attenuation
  • 6 for 30 dB attenuation
  • 7 for 35 dB attenuation
  • 8 for 40 dB attenuation

This command is not documented in either the Noise Figure Analyzers NFA Series User’s Guide or within the Noise Figure Analyzers NFA Series Programmer’s Reference.

Documents et téléchargements

NFA Noise Figure Analyzer User's Guide  
User's guide for the NFA Series noise figure analyzers: N8972A, N8973A, N8974A, N8975A.

Manuel de l'utilisateur 2001-05-01

NFA Noise Figure Analyzer Programmer's Guide  
Programmer's guide with explanations on how to program the analyzer using SCPI commands. For use with the NFA Series noise figure analyzers: N8972A, N8973A, N8974A, N8975A.

Guide de programmation et de syntaxe 2001-05-01

null PDF 3.32 MB
NFA Series Noise Figure Analyzer, Programming Examples 
This Product Note contains programming examples of measurement scenarios written in pseudo code, to enable the automated control of the NFA Series Noise Figure Analyzers using SCPI standard commands.

Notes d’application 2000-11-27

null PDF 1.19 MB
How does the attenuation algorithm in the NFA work? 
See this FAQ for details

Questions demandées fréquemment 2014-01-31