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| To: | [email protected] |
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| Subject: | Re: VLF: Night-transmission on 8270.1 Hz |
| From: | DK7FC <[email protected]> |
| Date: | Sun, 20 Jan 2019 14:46:16 +0100 |
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Hi Paul,Many thanks. The signal is slighty smaller , maybe just as smaller as my output power dropped. Very nice. How many character could have been carried in these 130 minutes if an EbNaut message would have been transmitted? It is hard to estimate the carrier S/N from the plot. Hard to belive that my recent 2970 Hz signal didn't make the same path with a detectable SNR. Maybe this upper ULF region is much more complex than we think... Oh BTW there has been a carrier transmission on Friday morning, 2019-01-18_09:42,2+h on 1970.01 Hz. I reached almost 3 A antenna current. But no signal at DL0AO or DL4YHF... Some months back it was no problem to detect the signal on my tree, with much lower power and higher QRN levels... 73, Stefan Am 20.01.2019 00:24, schrieb Paul Nicholson: The second hour was equally as strong - http://abelian.org/vlf/tmp/190119b.gif The phase is stable: 1st hour: -94.8 deg 2nd hour: -85.5 deg -- Paul Nicholson -- |
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