> Many FT-1000D owners (and non-owners who have used them) have urged > implementation of an Audio Peak Filter in the K3 for weak-signal CW > work.
The APF on the FT-1000D is exceptional and it's a true gain-producing peaking filter at the center frequency. By contrast, the APF in the Icom 7700/7800 is probably better characterized as an audio bandpass (ABP) filter with no peaking gain at the center frequency. I suppose the ideal APF would incorporate all the attributes of a single-channel parametric EQ with variable "Q," frequency, and amplitude. Paul, W9AC ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
