[TenTec] Omni VI XTAL OSC problem

Steve Hunt steve at karinya.net
Sun Jan 6 13:45:26 EST 2008


Hi folks,

I have an Omni VI which just developed a severe "warble" on Tx and Rx, 
but only on 160m. I assumed the problem must be with the 160m crystal 
(or associated components) on the Xtal Osc - LO Mixer board.

Thinking the crystal may have aged towards the limit of the loop control 
range, I just adjusted L12 - the inductor associated with the 160m 
crystal - and it now seems OK. I adjusted L12 to put the loop control 
voltage close to the value seen on all the other bands; it had been much 
higher.

Does anyone know if this is the right procedure? And does anyone know 
what the loop control voltage should be adjusted to?

Grateful for any help.

Steve G3TXQ



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