Hi everybody, Following the advice in one of the posts here, I have changed the AGC settings on my K3+ ( new sync and IO boards as per Elecraft mods kit turning the old K3 actually into K3S). I've put the AGC THR to 12, AGS SLP to 8, AGC DCY to SOFT in the Config menu. Whaw! The efffect was immediate ,very obvious and pleasant! The strong signals were strong, the weak were weak , but there was no pile-up mush! What was especially of great importance for me - the long time annoying problem of receiver hiss and humm when receiving on narrow band 250 Hz filter was gone! Before, when switching the narrow filter on on weak signals on the noisy band the signal actually was totally covered by the increased noise in the filter. I think now it was due to the AGC reacting to the noise and amplifying it in the narrow band mode because of the too low AGC THR setting. When the threashhold was increased, the AGC stopped equalizing the noise and only work on the signal. The result was awsome! You switch the 250 hz roofing filter on and all the noise and interfering stns are gone, and the signal you want is there! It could be a very loud one or a weak one , but it is there and the noise is not! I recommend everybody to try out this and experiment with the AGC settings on your K3 radios! 73 de Linas LY2H ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net
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