[TenTec] Re: Receiver AGC and QRN

[Robert Weingaertner]

I find on my Paragon (IF AGC) and Corsair (audio AGC), it works
better in the presence of strong QRN if I switch in the attenuator.
This shuts off the RF amp and adds in a 10 dB attenuator. The AGC
action is smoother and on QRN-prone bands like 80 and 160, there
is still plenty of signal to work with.

         73, Bob WB2VUF


Steve Ellington N4LQ wrote:
> 
> That was great Bob! Reminded me of my Swan Astro 102BX. It had continously
> variable agc. That came in real handy. Basically I think the agc in most
> modern rigs is too aggresive and for cw we would be better off with less of
> it. Perhaps a combination of af and if agc would work. For those strong
> short peaks, the af gain could be clipped to prevent ear damage and recovery
> almost instantainous and for signals of long duration the IF agc would
> reduce the IF again accordingly.
> Steve N4LQ
> 
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