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| To: | [email protected] |
|---|---|
| Subject: | LF: 137 kHz groundwave |
| From: | Stefan Schäfer <[email protected]> |
| Date: | Thu, 26 May 2011 14:51:01 +0200 |
| Reply-to: | [email protected] |
| Sender: | [email protected] |
| User-agent: | Mozilla/5.0 (Windows; U; Windows NT 6.1; de; rv:1.9.1.11) Gecko/20100711 Thunderbird/3.0.6 |
LF,I just sent some CQ calls on 137.71 kHz and saw the signal at about the same strength on the G4WGT grabber in 910 km, O copy. But there is no trace at all on the YO/4X1RF grabber in 1426 km (in QRSS-10). The 137 kHz groundwave seems to "stop" somewhere between these distances, maybe arround 1000km. I'm sure some of you have some better theoretical and/or practical experience about that? Another advantage of VLF,where it's "easy" to reach 2500 km and above anytime :-) 73, Stefan/DK7FC |
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