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[TenTec] Frequency accuracy...

To: Ten Tec Mailing List <tentec@contesting.com>
Subject: [TenTec] Frequency accuracy...
From: Gary Tuck <gtuck@mac.com>
Reply-to: tentec@contesting.com
Date: Tue, 28 Dec 2004 21:51:43 -0800
List-post: <mailto:tentec@contesting.com>
While the band was nothing to shout about here today and my neighborhood noise was bad--I thought I'd see where my readout was compared to WWV.

This is the method I've used in the past----

I tune WWV on USB with AGC off. If the signal is strong enough, you can hear the background noise "whoooshing" as zero beat is approached. I then check against LSB to make sure it is the same. I get this zerobeat at 9999.953 for 10 mhz WWV and 14999.927 for 15 mhz WWV after a two hour warm up period.

Now if this method is OK--my first question, then my Orion seems to be aging in the wrong direction. It used to be off by about 25 hz at 10mhz. I read a post by K6SE a couple of years back about adjusting the TXCO. Any thoughts or wisdom appreciated. Now I know this might be a very small nit to pick but thought I'd ask if any are interested or bored enough to reply....

Gary W7TEA

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