[TenTec] OMNI-VI question

[wt4t at reagan.com]

Charles
 Is a great idea to use the computer ,my problem is my shack computer is a mac. not saying these programs aren't available for the mac,I have never seen them. Since the VI has a coupla of other problems ,think I will sent it to ten tec while they still service the VI. Like I mentioned before my old test gear ,as in heath kit and eico,is not up to the task of doing this tight of setup.
thanks
73
dale wt4t
-----Original Message-----
From: "Charles Strickland" <wa4oss at earthlink.net>
Sent: Sunday, October 19, 2014 5:38pm
To: "'Discussion of Ten-Tec Equipment'" <tentec at contesting.com>
Subject: Re: [TenTec] OMNI-VI question

Most of us today have test gear sitting in front of us that allows us to do things that years ago was beyond our financial means.

If by chance you have your pc interfaced to your rig for received audio.  Use one of the many free spectral analysis programs to view the 500 or 600 hz tones from WWV while in the am mode.  With a narrow span identify the tone that you choose, switch to either upper or lower sideband and rotate the tuning until the tone is at the same position (frequency) as when in am mode.  Then using the receiver frequency display you have the error amount.  Adjust the reference oscillator until the tone is at the correct position or frequency on the spectral display while in either upper or lower sideband and the receiver is properly tune to WWV.  Use the highest frequency that you can receive WWV for best resolution.  Be sure to keep track of which tone WWV is sending.

I have been able to get mine to within plus or minus 0.3 hz at 20 mhz with this method.  That is when compared to my rubidium standard.






 

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