[Kenwood] TS850 Drift

Tue, 22 Oct 2002 06:17:42 -0400

Jim

Does it do this "immediately" or only after the rig has been turned on for 
a while? Does it do it with the beam pointed in one direction and not 
another (point the beam at the shack vs pointed away)?

Are you running high power? Are you running AFSK instead of FSK?

It really sounds to me like RF getting back into the "up-down" control 
lines which show up on the microphone lines  (you know how you can use the 
MC-60 buttons to QSY the radio).

Try putting some ferrites on your microphone and AFSK audio lines both at 
the radio and computer.

Dave
NR1DX

At 05:31 AM 10/21/02 -0700, you wrote:
>While operating in the JARTS RTTY contest this weekend, I noticed a slight
>drift in my frequency.
>
>This change was very small and seemed to happen only on transmit, e.g. If I
>was CQing on 14.082, it would change to 14.081 then 14.080 then 14.079 etc.
>at the rate of about one change per minute or so.  Always downward.
>
>This was a real change in frequency, not just a change in the display.  All
>other operations seem normal.
>
>Any advice appreciated.
>
>Thanks      Jim      W4LC
>
>
>
>
>
>
>--- 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.---
>- - -
>
>Your moderator for this list is:
>Larry Wilson KE1HZ [email protected]
>
>_______________________________________________
>Kenwood mailing list
>[email protected]
>http://mailman.qth.net/mailman/listinfo/kenwood