APF is not a cure all. It is an alternative to narrowing the bandwidth to the minimum to try to improve the signal to noise ratio. If there are strong signals near the one you are trying to receive, from a crowded band or DQRM, then it isn't going to help. If the band is reasonably quiet around the signal, it can make reception possible.

73 Bill AE6JV

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Bill Frantz        | Concurrency is hard. 12   | Periwinkle
(408)348-7900 | out 10 programmers get it | 150 Rivermead Rd #235 www.pwpconsult.com | wrong. - Jeff Frantz | Peterborough, NH 03458

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