| To: | <tentec@contesting.com> |
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| Subject: | [TenTec] Some Observations on Orion Stability/Calibration |
| From: | geraldj@isunet.net (Dr. Gerald N. Johnson, electrical engineer) |
| Date: | Wed Jun 4 18:07:38 2003 |
Ground wave at HF is as good for frequency stability as world wide propagation on 20 and 60 KHz. In fact the transmitter frequencies of WWV on HF are monitored at Boulder some miles from Ft. Collins. I don't recall how the frequencies of WWVH are monitored and controlled. I'm sure its on a NBS web page mimicking one of their frequency standards publications. 73, Jerry, K0CQ -- Entire content copyright Dr. Gerald N. Johnson, electrical engineer. Reproduction by permission only. |
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