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| To: | [email protected] |
|---|---|
| Subject: | LF: Re: CFH on 136.9559 kHz ? |
| From: | "John Andrews" <[email protected]> |
| Date: | Sun, 21 Nov 2004 20:10:49 -0000 |
| References: | <[email protected]> |
| Reply-to: | [email protected] |
| Sender: | [email protected] |
Markus, Curiosity took over, and I attempted a mid-afternoon measurement of the CFH carrier's field strength. I get 235 uV/M at 697 kM. A quick check with a great circle plot shows about 70% of that path to be over sea water. Ground conductivity for the rest of the path is awful (blame the last ice age), no better than 1/2500 of sea water. If anyone can factor in the earth's curvature and calculate an unattenuated field from this, be my guest. John Andrews |
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