Keith,
You wrote...
>Good thought. It reminded me of an in-line volume control I had >for my
headphones. I dug it up and put it in, and all is better >now. By
running the AF gain higher, the hisssss is masked....
Hmmm. It just dawned on me -- is the hiss from the RF/IF chain, or is the
real culprit the AF output IC or preamp, etc.? If the noise were being
generated before the AF gain control increasing the AF gain setting
wouldn't affect it; but increasing the AF gain control setting would
improve signal-to-noise ratio in anything AFTER the AF gain control if I
am thinking right.
73,
Al WB5JNC
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