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| To: | <[email protected]> |
|---|---|
| Subject: | LF: Transatlantic LF Beacon |
| From: | "James Moritz" <[email protected]> |
| Date: | Thu, 29 Dec 2011 13:00:53 -0000 |
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| In-reply-to: | <[email protected]> |
| References: | <[email protected]> <[email protected]> |
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| Sender: | [email protected] |
Dear LF Group,Thanks for the reports overnight on the 136kHz beacon transmissions - It has been a while since previous T/A beacon activity from M0BMU, so it is good to see that the signal is getting out. The beacon was shut down at 0712utc - I have to lower the antenna to its normal height before daylight so the neighbors don't see it! For information, transmitter power is about 900W from a modified "Decca" PA. The antenna is a 60m span of wire, which is normally 10m or so high on average; last night the centre of the span was raised to 16m, making the average height about 13.5m. Antenna current was 4A. Based on measurements on similar antennas in the past, I estimate ERP to have been about 0.7W. Cheers, Jim Moritz73 de M0BMU |
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