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Re: [TenTec] Omni VI Freq calibration

To: Discussion of Ten-Tec Equipment <tentec@contesting.com>
Subject: Re: [TenTec] Omni VI Freq calibration
From: Brandon Brinkley <bbrinkley@gmail.com>
Reply-to: Discussion of Ten-Tec Equipment <tentec@contesting.com>
Date: Fri, 29 Aug 2014 10:32:56 -0500
List-post: <tentec@contesting.com">mailto:tentec@contesting.com>
No. 10.000.40  

I was in CW mode. Should I compare in USB and LSB? 

This radio is basically a spare. I like to use it from time to time though. I 
bought it second hand, was going to return it since it was adv as an Option 3, 
but decided to keep it. The return shipping alone was prohibitive. I could sell 
it for parts and make more than I have in it. It's fully filtered. 

> On Aug 29, 2014, at 10:22 AM, Barry N1EU <barry.n1eu@gmail.com> wrote:
> 
> Could it be USB oscillator correctly aligned and LSB oscillator off by
> 40hz?  Did you mean 10.000.040?
> 
> Barry N1EU
> 
> 
> On Fri, Aug 29, 2014 at 11:13 AM, Bob McGraw - K4TAX <RMcGraw@blomand.net>
> wrote:
> 
>> The OCXO is the reference for all bands.  As to individual bands, there's
>> a crystal {10 of them total} being one for each band.  The crystal
>> oscillator is supposed to be locked to the precision reference by a PLL.
>> It may be that the PLL and varactor diode is not able to pull the crystal
>> on frequency.  All of this is on the Xtal Osc. - L.O Mixer Board.
>> 
>> I have noted the absolute frequency will vary from band to band by a few
>> Hz. And unless the BFO frequencies are not absolutely correct, you may find
>> a slight frequency discrepancy from mode to mode.
>> 
>> 73
>> Bob, K4TAX
>> 
>> 
>> 
>> 
>> 
>> 
>> ----- Original Message ----- From: "Brandon Brinkley" <bbrinkley@gmail.com
>> To: <tentec@contesting.com>
>> Sent: Friday, August 29, 2014 8:48 AM
>> Subject: [TenTec] Omni VI Freq calibration
>> 
>> 
>> 
>> My Omni VI+ is spot on. I also have an Omni VI stock no Option upgrades.
>>> I've noticed on 40 meters that I have to adjust 40 Hz high to be on freq.
>>> I've verified that with other radios. On 10.000 I have to be on 10.000.40
>>> to get the side tone to match up. On 20 meters it seems either spot on or
>>> maybe 10Hz off. I've let the radio warm up 30 mins or more, so the OCXO
>>> should be sufficiently warm.
>>> 
>>> Any easy fix or should I look into a TCXO?
>>> 
>>> 73
>>> 
>>> Brandon AC4OU
>>> _______________________________________________
>>> TenTec mailing list
>>> TenTec@contesting.com
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>> 
>> 
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