[Elecraft] APF For K3

[Scott Ellington]

I've used both the APF filter in the FT-1000 and an external audio filter (Timewave DSP-599zx), but never found them useful for CW.  The filter in my head always seems better at picking out the desired signal than the audio filter, so the audio filter just doesn't help.  Others my find differently, of course, though the filter in my head probably isn't an exceptionally good one.  There are some very good cw contest operators who do nearly all their operating using the SSB filter.

Scott  K9MA

Scott Ellington
Madison, Wisconsin
USA