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Re: [TenTec] OMNI-VI question

To: Discussion of Ten-Tec Equipment <tentec@contesting.com>
Subject: Re: [TenTec] OMNI-VI question
From: Mike Bryce <prosolar@sssnet.com>
Reply-to: Discussion of Ten-Tec Equipment <tentec@contesting.com>
Date: Sun, 19 Oct 2014 13:35:12 -0400
List-post: <tentec@contesting.com">mailto:tentec@contesting.com>
DALE,

is it off on one mode or all of them?


Mike, WB8VGE
SunLight Energy Systems
The Heathkit Shop
http://www.theheathkitshop.com/
J e e p
o|||||||o 

A man with one clock knows what time it is. A man with two clocks is never 
sure. 



On Oct 19, 2014, at 1:27 PM, Ken Brown <ken.d.brown@hawaiiantel.net> wrote:

> Whether you can fix it yourself depends on your access to accurate 
> instruments and your skill at using them.
> 
> The frequency accuracy of the Omni VI depends on the accuracy of the 
> reference oscillator which determines the accuracy of the VFO PLL AND the BFO 
> accuracy. The BFO in the Omni VI IS NOT LOCKED TO THE 10 MHz reference 
> oscillator. The BFO has several adjustments for the different frequencies 
> used for USB, LSB, CW and FSK. Those adjustment interact, so it is necessary 
> to do them in the correct order, and them do them again.
> 
> You will need a way to accurately measure and adjust the 10 MHz reference and 
> the BFO frequencies. A frequency counter with a known accurate reference 
> would be the easiest way to go.
> 
> You mention having a signal generator. If that has an accurate reference you 
> could use it and a general coverage receiver to listen to the beat between 
> your sig gen and whichever oscillator you are adjusting. You will have to 
> play around with methods of getting a sample of the oscillator and your 
> signal generator at the right amplitudes to hear the beat nicely on the 
> receiver.
> 
> DE N6KB
> 

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