The K3's APF feature formalizes behavior that I used to implement by mixing the audio from the main and second RX with the two receivers set to different IF and DSP bandwidths. The first few times I tried the APF, I was not impressed; I thought (mistakenly) that it was not "meant" to work with the 8-pole 400Hz IF filters in my K3.
Boy, was I ever wrong! I followed the suggestions that Eric posted last week - especially using 1Hz FINE tuning - and APF has, indeed, allowed me to hear signals that were inaudible before. In particular, it has allowed me to work VP8ORK from 160m down to 10m, raising copy from "ESP" to "workable" in many cases. -- 73 -- Brian -- K1LI ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html

