To: | [email protected] |
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Subject: | Re: LF: Re[2]: LF: VLF NA Ebnaut |
From: | Markus Vester <[email protected]> |
Date: | Thu, 28 Dec 2017 11:50:07 -0500 |
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In-reply-to: | <[email protected]> |
Reply-to: | [email protected] |
Sender: | [email protected] |
Big CONGRATULATIONS to Alex and Joe! I'm glad to announce that the one-character EbNaut transmission from VO1NA has also been decoded from the cardioid antenna at DL0AO (near Amberg, JN59VK). The correct decode "S" first prevailed in a single-night recording from Dec 23/24, and finally became absolutely unambiguous after stacking four out of seven nights with equal gain and phase. Correlations for single nights: Eb/N0 phase night dB deg Dec 2017 -5.5 -54.3 21/22 -4.8 -8.5 22/23 -0.5 -6.5 23/24 (decoded "S") -20.6 150.3 24/25 (only noise) -10.7 32.1 25/26 (only noise) -2.5 -26.5 26/27 -4.4 10.8 27/28 Two nights stacked: +0.6 -7.3 22/23 + 23/24 -0.8 -9.5 26/27 + 27/28 Four nights stacked: +2.8 -8.4 22/23 + 23/24 + 26/27 + 27/28 Thanks to Joe for sending consistent repeats, to Bernd and Tom for setting up the VLF receivers at DL0AO, and of course to Paul and Wolf for making all this possible in the first place. Best 73, Markus -----Ursprüngliche Mitteilung----- Von: Alex K <[email protected]> An: rsgb_lf_group <[email protected]>; jcraig <[email protected]>; Paul Nicholson <[email protected]> Verschickt: Do, 28. Dez 2017 16:52 Betreff: LF: Re[2]: LF: VLF NA Ebnaut Hello Joe, Paul, VLF! (But may be it is false decode? :-/ ) Stacking of 24Dec and 26Dec with phase shift 60 deg give me strongest decode with rank 0: ebnaut-rx V0.7a All files for reprocessing are here: http://rn3aus.narod.ru/VO1NA-1char.zip 73 de rn3aus/Alex
8k27W_12240249-log.txt
8k27W_sum_22 23 26 27-log.txt |
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