Mine was about 200 HZ off on all bands when I bought it from a ham. The a meter
readings were horrible too. Both were fixed properly when I sent it in to
Sevierville.
Best regards - Bry Carling
> On Aug 29, 2014, at 2:22 PM, Robert <rmcgraw@blomand.net> wrote:
>
> Boards are basically non-existant for this 20 year old model. As to being
> "up to spec", my recall is +/- 50 Hz.
>
> 73
> Bob K4TAX
>
>
> Sent from my iPhone
>
>> On Aug 29, 2014, at 10:40 AM, Brandon Brinkley <bbrinkley@gmail.com> wrote:
>>
>> Ok. I suppose if the warm up isn't an issue or if I leave the power supply
>> on then the OCXO vs TCXO isn't a big deal.
>>
>> As for the xtal osc board, would that be a cost prohibitive fix or should I
>> just find a replacement board provided that's the problem?
>>
>> Service at TT said I should keep this for parts at a min for the VI+ since
>> parts are scarce.
>>
>> I'll prob end up giving this to a new ham. Someone did that for me when I
>> was young and had no funds. I just want it to be up to spec.
>>
>> I think an Omni VII is on the horizon once I get my Eagle.
>>
>> 73,
>>
>> Brandon AC4OU
>>
>>> On Aug 29, 2014, at 10:13 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
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>>>
>>>
>>>
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