[Elecraft] K3/KX3 Operating Tip: APF (audio peaking, filter) for weak-signal CW work

[Don Wilhelm]

I do not understand how assigning APF to a PF button makes things any 
easier. From what I have seen in the comments, the "problem" is that it 
is a button Hold problem.  PF1 and PF2 are button hold functions - why 
not just hold the Dual PB button and use it "as-is"? Some of the "cures" 
presented here boggle my mind.

73,
Don W3FPR
On 6/30/2012 8:59 AM, eric manning wrote:
> Graham said:
>
> How about making it possible to switch the APF on and
> off through a programmable function button
>
> Dick said:
>
> It should be possible using a command macro.
>
> AP0; turns CW APF off,
> AP1; turns CW APF off,
>
> SWH29; toggles DualPB which is APF if you have the K3 menu parameter
> CONFIG:DUAL PB set to APF.
>
> I say:
>
> It IS possible, I did it  months ago using SWH29; and have been using it ever since.
>
> I use button M2 to turn on  APF,  SPLIT, and SUB, and move VFO B 1KHz above VFO A.
> All this is  to get the K3 ready for a DX pileup.
> M1 undoes all of that after  I leave the pileup.
>
> Eric
> VA7DZ
>