[WSWSS] Another question re: SINAD and SSB

[Scott Townley]

Question:
I'm measuring an SSB receiver.  I inject an RF signal, adjust the RX
frequency until the audio tone is 1kHz, and make a SINAD measurement.  Say
it's 12dB.  
Thought Experiment:  If I supplied an SSB signal of the SAME PEP to the
receiver (e.g., the signal generator were an off-air signal that switched
from CW to SSB), and the transmitted SSB signal were perfect (phase noise
and distortion-free), would the true SINAD still be 12dB?  Or different,
and why?  No changes are made to the RX during the test (no change in IF
bandwidth).
Real Experiment:  Is there a way to measure SINAD on a real SSB signal?  Or
maybe an artificial approximation, like say a three tone signal?

Thanks...
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Scott Townley		
nx7u@arrl.net
Gilbert, AZ  DM43di
     
HF/VHF/UHF/Satellite MOBILE station
--> yet NEWER (August 2002) address http://members.cox.net/nx7u

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