[Elecraft] Easy optimizing the K2 filters

Fri Sep 19 21:43:01 2003

Joe,

Listening for the pitch of the noise IS a good way to get the filters very
close - if you have really good ears for pitch, you may even be able to get
them right on with no Spectrogram, but many of us are not that good at
detecting pitch by ear.

Even though I cannot detect a precise pitch, I can get in the ballpark
quickly.  I think it difficult to explain just what to listen for, but
similar ot the question of how to listen for zero beat, once you know what
it should sound like, it becomes almost second nature.

73,
Don W3FPR

----- Original Message ----- 

Wanted to check my filtersettings on my old K2 ( #326). It was way off. But
no problem: I choose:
Menu - Cal - Fil.
There - while listening to noice I could  do all sort of things (like
setting up the band with ) - and if pressing (Band-) could tune in the
narrower bands to be precise on the frequency band. (try it -its quite
special)
Its was very easy actually and reminds me of the benefits of having build
the K2 myself.

I have seen some suggestions about using e.g. Spectrogram, a program I know
very well - but when I tried to listen myself instead I reached my optimum
much faster. That was 400Hz tone 1,4Khz, 0,70, 0,40, 0,16.

So my suggestion is to listen to noice and adjust accordingly through
MENY-CAL-FIL and (band-) (and toggle through XFIL) if you want to realign an
old K2.. on the filter side.

Joe

--- StripMime Report -- processed MIME parts ---
multipart/alternative
  text/plain (text body -- kept)
  text/html
The reason this message is shown is because the post was in HTML
or had an attachment.  Attachments are not allowed.  To learn how
to post in Plain-Text go to: http://www.expita.com/nomime.html  ---
_______________________________________________
Elecraft mailing list: [email protected]
You must be subscribed to post to the list.
To subscribe or unsubscribe see:
http://mailman.qth.net/mailman/listinfo/elecraft
Elecraft Web Page: http://www.elecraft.com
Also see: http://www.elecraft.com/elecraft_list_guidelines.htm