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| To: | [email protected] |
|---|---|
| Subject: | Re: VLF: Strong drifting carrier on VLF! |
| From: | Mike-WE0H <[email protected]> |
| Date: | Mon, 28 Jun 2010 20:49:28 -0500 |
| In-reply-to: | <[email protected]> |
| References: | <[email protected]> |
| Reply-to: | [email protected] |
| Sender: | [email protected] |
| User-agent: | Thunderbird 2.0.0.24 (X11/20100317) |
Maybe they were using a untuned Earth Probe antenna? Mike-WE0H Dave-G3WCB wrote: Dear LF,The mystery signal starts at 12 kHz, and sweeps up to 23 kHz over a period of a few hours, which is nearly an octave. What sort of antenna system would be in use to allow that sort of frequency coverage? There must have been a lot of variometer twiddling and tap-changing going on! 73, Dave G3WCB IO91RM |
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