[Elecraft] Re: K2 filter attenuation

Ingo Meyer DK3RED [email protected]
Wed Oct 16 04:18:00 2002


Hello Colin,

>... So if I want to work a weak signal I have to put up with other=20
>stations well off the centered frequency. Is this normal? ...

No it isn't normal. If I turn down the filter bandwidth also a weak signal=
=20
switchs a little bit (about 10 - 20 Hz) but I don't loose it.

>... I've checked the alignment (according to Don, KD5NDB) and the 40M=20
>birdie remains fairly consistent in pitch as I switch through the filters.=
=20
>Any suggestions?

Check your CW filter alignment again with
- a noise source (not with birdie or atmospheric noise)
- Spectogram (or an other program like this) and
- the "K2 CW Filter Alignment Procedure Using Spectrogram" by Tom Hammond=20
N=D8SS (you can find this one on the Elecraft pages).

You can find all URL's on
http://www.elecraft.com/Apps/new_fil_docs/filter_apps.htm

You will see and hear the differency. :o)

72/73 de Ingo, DK3RED   Don't forget: the fun is the power!

    [email protected]   http://www.t-online.de/~dk3red
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