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Re: VLF: Finally back on the 58 km band...

To: [email protected]
Subject: Re: VLF: Finally back on the 58 km band...
From: DK7FC <[email protected]>
Date: Tue, 09 Jan 2018 21:30:00 +0100
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Hi Paul,

Very nice, thanks for generating that decode at SQ5BPF. Almost half the distance to Alex. The 12th transmission is running now and i am happy to be able to see the PSK again on the grabber. If you can get the data from all transmissions, i hope there is only one message shown (no additional false decodes) at rank 0.

73, Stefan


Am 09.01.2018 18:31, schrieb Paul Nicholson:

Stefan wrote:

> f = 5170.1000 Hz
> Start time: 29.Dec.2017  15:00:00 UTC
> Symbol period: 30 s
> Characters: 12
> CRC bits: 20
> Coding 16K21A
> Duration: 14:56 [hh:mm]

Now eleven transmission with good phase repeatability.

Warsaw (919.3 km SQ5BPF)
------------------------

 29/30 Eb/N0  -5.4 dB, S/N -34.4 dB/1Hz, phase -20.3;
 30/31 Eb/N0 -17.2 dB, S/N -46.2 dB/1Hz;
 31/01 Eb/N0  -7.8 dB, S/N -36.8 dB/1Hz, phase -44.2;
 01/02 Eb/N0  -6.1 dB, S/N -35.1 dB/1Hz, phase -36.1;
 02/03 Eb/N0  -8.2 dB, S/N -37.1 dB/1Hz, phase   2.9;
 03/04 Eb/N0 -10.2 dB, S/N -39.2 dB/1Hz, phase -33.1;
 04/05 Eb/N0  -8.1 dB, S/N -37.1 dB/1Hz, phase  -3.8;
 05/06 Eb/N0  -6.4 dB, S/N -35.4 dB/1Hz, phase -44.2;
 06/07 Eb/N0  -8.1 dB, S/N -37.1 dB/1Hz, phase -22.9;
 07/08 Eb/N0  -7.5 dB, S/N -36.5 dB/1Hz, phase -20.8;
 08/09 No data from rx site, uplink off;

 All stacked: Eb/N0 +1.3 dB *Decoded* rank 147;

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