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vrf - HP8594 Gain & NF Measurement

Question asked by VRFuser on Jan 14, 1999
Hi,

     I'd like to use HP VEE to measure gain and noise figure using an
HP8594 spectrum analyzer.  So far, I've been able to communicate with
the Gain and Noise Figure personality module using Direct I/O commands.
It appears to be accepting commands for start and stop freq, number of
points, etc.  However, I have not been able to extract the results once
the measurement is complete.
    I've tried using the Direct I/O object to send commands similar to
the HP Basic sequence in the manual.  However, all I get back is a
string of identical negative values nowhere near the correct values I
measure with a known DUT in the manual mode.  Same result when using
various trace read commands.  Anybody know what the correct command
sequence is ?



                              Thanks,

     
                              Jeff Fuller
                              Superconductor
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