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frequency offset measurement using PNA 5242A Network Analyzer and Labview

Question asked by srms on Jan 29, 2013
Latest reply on Apr 10, 2013 by Dr_joel
Hi, 

I am trying to do FOM Using PNA 5242A network analyzer and control it using labview.

I want to use 1GHz as my source signal(port 1) and use 500MHz-3GHz(port 2) as my receiver signal.

Following is my SCPI code

for source:
SENS:FOM 1     (FOM ON)
     
SENS:FOM:RANG:COUP 0   (Source and receiver uncoupled)

SENS:FOM:RANG:SWE:TYPE LIN (Sweep type Linear)

SENS:FOM:RANG:FREQ:CW 1e9  (CW fre 1GHz)

for receiver: from an example online
SENS:FREQ:START 1e9
SENS:FREQ:STOP 2e9
'set the receivers to be 2e9 -> 3e9
SENS:OFFS:OFFS 1e9
SENS:OFFS ON

when I do this I get a noisy signal. Is there anything that i am missing here. can anyone help me how to do FOM as I mentioned above. Thank you in advance  

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