[TenTec] Omni VI Mystery

[Bob McGraw - K4TAX]

I use a Stamford Research SR-620 with a GPS Discipline oscillator for a 
reference.  However, many less expensive counters will resolve to 0.1 Hz or 
better.

This is the key when one needs to determine a frequency such as the BFO's 
being;  9.000400 MHz or 9.000000 MHz or 9.003000 MHz or 9.002295 MHz or 
9.002215.  These are values to 1 Hz.  These are the frequencies of the BFO's 
depending on mode, per the Ten-Tec manual.

I do not view a receiver to be a frequency determining instrument.  Just 
think, what would be the likely result if you didn't know your Omni VI was 
not correct and you used it to make a measurement or calibration?

It was pointed out earlier that I implied the adjustment had to be 0.1Hz. 
Nope, that was not what was stated.   I stated "a frequency counter with an 
accuracy of 0.1Hz or better is required" .  The adjustment needs to be 
resolved to 1 Hz.



73
Bob, K4TAX



----- Original Message ----- 
From: "Jim Allen" <jim.allen at longhornband.net>
To: "Discussion of Ten-Tec Equipment" <tentec at contesting.com>
Sent: Wednesday, July 30, 2014 9:38 AM
Subject: Re: [TenTec] Omni VI Mystery


> What kind of frequency counter does that?
>
> 73 de W6OGC  Jim Allen
>
>
> On Wed, Jul 30, 2014 at 9:27 AM, Bob McGraw - K4TAX <RMcGraw at blomand.net>
> wrote:
>
>> The frequency has to be resolved to 1 Hz or better per Ten-Tec info.
>> This BFO along with the HF osc and VFO all have a relationship with 
>> regard
>> to the final frequency received or transmitted.  Any error at any of 
>> these
>> makes things worse.    I've always practiced that the final frequency
>> resolution should be done by an instrument capable of an accuracy of 1/10
>> the final value.  Hence to resolve to 1 Hz a resolution of 0.1 Hz is
>> required.
>>
>>
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