[Elecraft] A couple of questions

[Don Brown]

Hi

If you are getting a frequency shift of the CW tone when the bandwidth is=
 changed then the problem is most likely the alignment of the filters. Th=
e BFO mod vastly improves the drift with temperature of the filters but y=
ou can still have the frequency shift if the filters are not set up right=
. =20

I would go back over the filter setup with Spectrogram for now but in my =
opinion the VFO and BFO mods are a must do for all K2's with a serial num=
bers under 3000. =20

Don Brown
KD5NDB

----- Original Message -----
From: Julian (G4ILO)
Sent: Wednesday, November 06, 2002 5:13 AM
To: Elecraft List
Subject: [Elecraft] A couple of questions

<SNIP>

I was interested in the comment by Allen, KA5N, that replacing the filter
crystals and doing the BFO mod solved the problem of the beat note changi=
ng
when switching bandwidths. I'm still troubled by this problem, which
discourages me from using narrow bandwidths when working PSK, but I can't
see why this mod would solve this particular problem, unless it's just a
matter of luck.

73,
--
Julian, G4ILO. (RSGB, ARRL, K2 #392)
Homepage: http://www.qsl.net/g4ilo


--- 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.
Please post in Plain-Text only.---