Don W3FPR wrote: Are you aware that reducing the RF gain will reduce the AGC action as well. Folks who want to try it may be surprised how well copy can be made under QRM conditions with the AF gain at full and the overall gain controlled by the RF gain.
With this technique, the residual AGC provides some 'limiting' protection for the ears while allowing one to dig for really weak signals - this is applicable at any bandwidth, but more so for wider ones. ------------------------------------------------------------ Good point, Don. Yes, that's what I do with the K2 quite a bit. It's worked well enough that I've put off fixing up a limiter. The problem comes up when I need to run the gains up for a very weak station and suddenly a huge signal in the passband keys the rig. The AGC kicks in and the weak signal disappears! Saves my ears, more or less, but kills the copy. With a hard limiter, if I've got the weak signal up right where the limiter is starting to clip, a much stronger signal is no louder. It's just rougher sounding thanks to the higher degree of clipping it gets. Ron AC7AC _______________________________________________ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
