KAF2 - good filter for CW!!!

[Bill W4ZV]

UR5LAM wrote:

 >Last evening I finished KAF2 audio-filter for my K2.
For adjusting CW filter BFO, and for looking maximum
peak with KAF2 I'm used spectrogamm on my PC and XG1
test oscillator. With spectrogramm it's very easy!
Now the weak signals on 160 and 80m-band I'm copy
very strong with KAF2!

Priwet Alexander!

         Would you mind sharing with us what
filter parameters worked best for you?

                                         73,  Bill  W4ZV

P.S.  KI6WX has some KAF2 measurements here:

http://home.pacbell.net/johngreb/kaf2_filter_modifications.pdf




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[Sverre Holm-2]

> -----Original Message-----
> Last evening I finished KAF2 audio-filter for my K2.
> ...
> Now the weak signals on 160 and 80m-band I'm copy
> very strong with KAF2! It working exellence!
>
>
> 72!73! Alexander Ponomarenko
> de UR5LAM

Yes, I agree, I use it almost all of the time. My preferred filters for
casual tuning is 1.00 kHz Xtal-filter combined with AF1. That gives a nice
reduction in noise and also rounded filter slopes that makes it easy to hear
stations even if they are a bit off. If noise or interference increases,
then I switch to 0.40 or 0.10 X-tal filter.


73

Sverre
LA3ZA
http://www.qslnet.de/la3za/
 



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