[TenTec] Omni VI tracking

[David S. McCallum]

Ok Art Thanks I think after I sent my query I saw your full question and realized I goofed, good luck and hope you can get it solved, Mac

----- Original Message ----- 
From: "Art Lewis" <wa8vsj at ameritech.net>
To: "Discussion of Ten-Tec Equipment" <tentec at contesting.com>
Sent: Sunday, January 14, 2007 9:24 PM
Subject: Re: [TenTec] Omni VI tracking


> Mac
> 
> RIT seems fine. This happens when the RIT is off. I use the RIT to make up 
> for the tracking error. I set it up 50Hz and everything is fine. Its not 
> really a problem, but I sure would like to know how it is doing this. Could 
> be a voltage varying,but I don't think so. I'll let everyone know if and 
> when I find the problem.
> 
>                 73 Art WA8VSJ
> ----- Original Message ----- 
> From: "David S. McCallum" <w7sac2 at cox.net>
> To: "Discussion of Ten-Tec Equipment" <tentec at contesting.com>
> Sent: Sunday, January 14, 2007 9:31 AM
> Subject: Re: [TenTec] Omni VI tracking
> 
> 
>> Might sound silly and it's been a long time since I have had a OMNI VI 
>> (darn it!!!) but is your RIT system ok?, good luck, Mac
>>
>> ----- Original Message ----- 
>> From: "Art Lewis" <wa8vsj at ameritech.net>
>> To: <ken.d.brown at hawaiiantel.net>; "Discussion of Ten-Tec Equipment" 
>> <tentec at contesting.com>
>> Sent: Sunday, January 14, 2007 8:03 AM
>> Subject: Re: [TenTec] Omni VI tracking
>>
>>
>>> Ken
>>>
>>> Its about 50Hz off on SSB. Seems like a strange problem because, like you
>>> said, they use the same oscillators. The receiver is high. Not sure what 
>>> to
>>> look at. Rig seems to perform fine in all other respects. Don't want to
>>> adjust anything without knowing what is happening.
>>>
>>>                                     Art WA8VSJ
>>> ----- Original Message ----- 
>>> From: "Ken Brown" <ken.d.brown at hawaiiantel.net>
>>> To: "Discussion of Ten-Tec Equipment" <tentec at contesting.com>
>>> Sent: Saturday, January 13, 2007 10:48 PM
>>> Subject: Re: [TenTec] Omni VI tracking
>>>
>>>
>>>> Hi Art,
>>>>
>>>> If you are talking about in SSB mode, in theory it cannot be wrong,
>>>> because all of the oscillators in use for TX are the same and have the
>>>> same logical commands applied to them when in RX mode. On the other
>>>> hand, when in CW mode the BFO is switched between 9.000000 MHz for
>>>> receive (same as LSB receive BFO Frequency) and 9.000400 MHz for
>>>> transmit, and the VFO gets different numbers loaded into it, depending
>>>> on the sidetone setting you have selected. The most likely cause of a
>>>> discrepancy between TX and RX frequency would be misalignment of the
>>>> trimmers in the BFO, which is on the TX AUDIO BOARD.
>>>>
>>>> N6KB
>>>>
>>>>
>>>> Art Lewis wrote:
>>>>> I have an Omni VI that works real well, but seems not to be tracking 
>>>>> the
>>>>> exmit and rec frequency correctly with my RIT off. I seem to have about 
>>>>> a
>>>>> fifty Hz difference. I am using the RIT to correct the problem, but I
>>>>> wonder if there is a simple adjustment I can make.
>>>>>
>>>>>                    Art WA8VSJ
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>>>>>
>>>>>
>>>>
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> 
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