Hello again, Just got through using the KAF2, audio filter, working a few QSO's on 30M and noticed that my KAF2 performs better in AF1 than AF2 and that it is also performing better with the wider xtal filter settings of 1.6kHz and 0.7kHz. Does this sound right or do I need to do some more aligning of the audio filters with the xtal filters. Tnx es 73, David, N4IN