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| Subject: | Re: VLF: 8819.9 Hz in Virginia? |
| From: | Paul Nicholson <[email protected]> |
| Date: | Fri, 12 Dec 2014 08:24:36 +0000 |
| In-reply-to: | <[email protected]> |
| References: | <[email protected]> <[email protected]> <[email protected]> |
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Spectrogram covering 24 hours yesterday http://abelian.org/vlf/tmp/141211c.gif A wandering signal from a crystal source of average stability. These are fairly common when you dig deep enough into the noise. Fortunately easy to distinguish from a GPS locked amateur signal. Demonstrates how useless an undisciplined xtal osc is for VLF (tx and rx). -- Paul Nicholson -- |
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