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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: Paul Nicholson <[email protected]>
Date: Tue, 9 Jan 2018 17:31:14 +0000
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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.

Todmorden (881.2 km)
--------------------

 29/30 Eb/N0 +2.8 dB, S/N -26.2 dB/1Hz, phase 46.1 *Decoded*
 30/31 Eb/N0 +4.1 dB, S/N -24.9 dB/1Hz, phase 44.2 *Decoded*
 31/01 Eb/N0 +1.8 dB, S/N -27.1 dB/1Hz, phase 43.2 *Decoded*
 01/02 Eb/N0 +1.5 dB, S/N -27.5 dB/1Hz, phase 57.6 *Decoded*
 02/03 Eb/N0 -1.6 dB, S/N -30.6 dB/1Hz, phase 60.6;
 03/04 Eb/N0 -1.6 dB, S/N -30.6 dB/1Hz, phase 50.3;
 04/05 Eb/N0  0.0 dB, S/N -29.0 dB/1Hz, phase 61.3;
 05/06 Eb/N0 +1.4 dB, S/N -27.6 dB/1Hz, phase 58.3 *Decoded*
 06/07 Eb/N0 +0.1 dB, S/N -28.8 dB/1Hz, phase 56.2 *Decoded*
 07/08 Eb/N0 -2.1 dB, H-field only,     phase 64.1;
 08/09 Eb/N0 -3.1 dB, S/N -32.1 dB/1Hz, phase 45.0;

Bielefeld (303.8 km DL4YHF)
---------------------------

 29/30 Eb/N0  +8.6 dB, S/N -20.4 dB/1Hz, phase -53.5 *Decoded*
 30/31 Eb/N0  +8.3 dB, S/N -20.6 dB/1Hz, phase -52.1 *Decoded*
 31/01 Eb/N0  +8.1 dB, S/N -20.8 dB/1Hz, phase -56.3 *Decoded*
 01/02 Eb/N0  +8.4 dB, S/N -20.6 dB/1Hz, phase -47.9 *Decoded*
 02/03 Eb/N0  +4.0 dB, S/N -24.9 dB/1Hz, phase -38.1 *Decoded*
 03/04 Eb/N0  +5.6 dB, S/N -23.4 dB/1Hz, phase -46.1 *Decoded*
 04/05 Eb/N0  +8.8 dB, S/N -20.1 dB/1Hz, phase -47.0 *Decoded*
 05/06 Eb/N0 +10.4 dB, S/N -18.5 dB/1Hz, phase -41.1 *Decoded*
 06/07 Eb/N0 +11.5 dB, S/N -17.5 dB/1Hz, phase -43.2 *Decoded*
 07/08 Eb/N0 +11.0 dB, S/N -18.0 dB/1Hz, phase -37.4 *Decoded*
 08/09 Eb/N0  +8.6 dB, S/N -20.4 dB/1Hz, phase -49.1 *Decoded*

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;

Cumiana (504.6 km IK1QFK)
-------------------------

 29/30 Eb/N0 -5.4 dB, S/N -34.3 dB/1Hz, phase  176.7;
 30/31 Eb/N0 -1.3 dB, S/N -30.3 dB/1Hz, phase -176.2;
 31/01 Eb/N0 -4.9 dB, S/N -33.9 dB/1Hz, phase  177.4;
 01/02 No data from rx site, ADSL fault;
 02/03 No data from rx site, ADSL fault;
 03/04 No data from rx site, ADSL fault;
 04/05 Eb/N0 -1.6 dB, S/N -30.6 dB/1Hz, phase  174.5;
 05/06 Eb/N0 -1.4 dB, S/N -30.4 dB/1Hz, phase  171.1;
 06/07 Eb/N0 -1.1 dB, S/N -30.0 dB/1Hz, phase -172.8;
 07/08 Eb/N0 -2.8 dB, S/N -31.8 dB/1Hz, phase -169.2;
 08/09 Eb/N0 -5.8 dB, S/N -34.8 dB/1Hz, phase -179.3;

 Eight stacked: Eb/N0 6.1 dB *Decoded*

--
Paul Nicholson
--

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