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Date: Fri, 12 Jan 2018 13:24:25 +0100
From: DK7FC <selberdenken@posteo.de>
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References: <2dbcd2a8-0109-41e4-c0ca-aada17f54de8@abelian.org> <5A381F2B.7000304@posteo.de> <3871624a-11dc-12b8-853c-8454840ca9ff@abelian.org> <5A398786.7000001@posteo.de> <5A398906.9000806@posteo.de> <6833b8ea-5cf8-809e-364e-a9f47e04bc44@abelian.org> <5A3D1058.2060801@posteo.de> <17640699-682a-2d4e-6c5f-8fa14d411530@abelian.org> <5A3DA439.2070503@posteo.de> <1baa9683-37de-2f96-5909-8138b10f0a8b@abelian.org> <5A43A659.9050006@posteo.de> <f25c1a9c-af08-70d0-59bf-314c04085513@abelian.org> <037a01d38031$1f453b20$5dcfb160$@comcast.net> <f290ae55-dfaa-fa3c-e4bc-ced7269bcad9@abelian.org> <5A479376.2060804@posteo.de> <4ac90a6f-6a7b-5ae4-3b4a-d8cb8e153599@abelian.org> <1e63b6ca-ae5c-176a-b9fa-1f035e5cc72e@abelian .org> <015e01d384cc$e8c36270$ba4a2750$@comcast.net> <952fc558-5e93-f229-2749-855bc73b1cbc@abelian.org> <5A4FA7EA.9070107@posteo.de> <c7914ab7-b212-e54a-9349-55b7180e1860@abelian.org> <5A552648.2010809@posteo.de> <5fb5fc87-fba9-cac3-d60b-83442d4ab8a2@abelian.org>
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Content preview: Thanks Paul for the summary. These informations are very useful
for me and we all get an impression about phase and SNR stability in this
range of distances. It looks like the phase is quite stable, i'm happy with
the results. Interestingly the phase is more stable in Cumiana than in Bielefeld.
Maybe this is a groundwave/skywave interference effect. [...]
Content analysis details: (0.0 points, 5.0 required)
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domain
0.0 T_DKIM_INVALID DKIM-Signature header exists but is not valid
X-Scan-Signature: 60b21f5b7eb190e65b65540006a87038
Subject: Re: VLF: Finally back on the 58 km band...
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Thanks Paul for the summary. These informations are very useful for me
and we all get an impression about phase and SNR stability in this range
of distances.
It looks like the phase is quite stable, i'm happy with the results.
Interestingly the phase is more stable in Cumiana than in Bielefeld.
Maybe this is a groundwave/skywave interference effect.
We didn't hear from Alex. Didn't he say he will be back on the 10th? I
hope its all fine.
73, Stefan
Am 12.01.2018 09:11, 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]
>
> Fourteen transmissions. Two decodes at Cumiana.
> Problems with the uplink from Warsaw.
>
> 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;
> 09/10 Eb/N0 -0.2 dB, S/N -26.2 dB/1Hz, phase 34.9 *Decoded*
> 10/11 Eb/N0 +1.5 dB, S/N -27.5 dB/1Hz, phase 39.4 *Decoded*
> 11/12 Eb/N0 +1.1 dB, S/N -27.9 dB/1Hz, phase 37.8 *Decoded*
>
> 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*
> 09/10 Eb/N0 +8.4 dB, S/N -20.5 dB/1Hz, phase -50.2 *Decoded*
> 10/11 Eb/N0 +9.0 dB, S/N -20.0 dB/1Hz, phase -51.4 *Decoded*
> 11/12 Eb/N0 +8.3 dB, S/N -20.6 dB/1Hz, phase -41.4 *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;
> 09/10 Eb/N0 -9.9 dB, S/N -38.8 dB/1Hz, phase -23.3;
> 10/11 No data from rx site, uplink off;
> 11/12 No data from rx site, uplink off;
>
> All stacked: Eb/N0 +1.6 dB *Decoded* rank 11;
>
> 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;
> 09/10 Eb/N0 -1.3 dB, S/N -30.2 dB/1Hz, phase 175.7;
> 10/11 Eb/N0 -0.3 dB, S/N -29.2 dB/1Hz, phase 173.6 *Decoded*
> 11/12 Eb/N0 -0.1 dB, S/N -29.1 dB/1Hz, phase 174.7 *Decoded*
>
> First nine stacked: Eb/N0 6.8 dB *Decoded*
>
> --
> Paul Nicholson
> --
>