I assume that Don means a 30Hz wide peak below.

While I have found APF to be good for digging out weak CW signals near the noise level, I have found a 50-100Hz bandwidth works better when there are nearby strong signals. (I have the 250Hz crystal filter.) The K3 won't let me narrow the DSP filter that much with APF on, probably for good reason. Am I missing a way to use APF in these tight spaced conditions?

73 Bill AE6JV

On 10/25/16 at 8:31 AM, [email protected] (Don Wilhelm) wrote:

Just how much improvement is gained for each receiver is open to some question, and depends on what tools are available and used. Certainly the K3(S) APF function would be of help with its 30Hz peak, but if testing is to be conducted using very closely spaced multiple signals, then it would be necessary to specify which of the interference abatement tools were used on each receiver...

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Bill Frantz        | When it comes to the world     | Periwinkle
(408)356-8506 | around us, is there any choice | 16345 Englewood Ave www.pwpconsult.com | but to explore? - Lisa Randall | Los Gatos, CA 95032

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