Even the second receiver has a big influence on how your signal sounds.
At present I am building my version of a wideband monitor receiver designed by
Ian G4COL, and featured in the RSGB Rad Com of November 1990.
As this has no pass band filtering to colour the received signal, combined with
an
My main interest was the SSB audio differences between lets say the first
SSB K2's , my self modified 3155, and 4000+ models.
I have a 1.07 rev SSB chip. Some early #3000's may have earlier chips. I
have not asked for any audio checks from any of the 100+ QSO's. Nobody I
worked had a K2.
This sounds like a purely subjective form of 'testing' to me. There are too
many variables to make a good judgement of one's audio quality.
-- The position of the transmit passband with respect to the audio
frequencies being transmitted is a large factor (FL1 BFO adjustment).
-- The width of the
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