| To: | Discussion of Ten-Tec Equipment <tentec@contesting.com> |
|---|---|
| Subject: | Re: [TenTec] Omni VI lock problem |
| From: | Ken Brown <ken.d.brown@hawaiiantel.net> |
| Reply-to: | ken.d.brown@hawaiiantel.net, Discussion of Ten-Tec Equipment <tentec@contesting.com> |
| Date: | Sat, 22 Sep 2007 14:08:18 -1000 |
| List-post: | <mailto:tentec@contesting.com> |
Adjusting C31, the 20 MHz oscillator trimmer, seems to have fixed it. I
don't understand why, since even if it were slightly off frequency I
would expect the band select xtal oscillators to be locked to it, and
just as stable as it was. Maybe it was a long way off though and the PLL
trying to pull them too far. Too bad I didn't look at the freq. counter
before I tweaked C31.
On my rig C31, the trimmer for the 20 MHz oscillator is on the logic board. If I had the upgraded TCXO, would the trimmer be on the TCXO can? N6KB |
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