Re: VLF: carrier at 8270.003

[Markus Vester <markusvester@aol.com>]

Hi Riccardo,

last night I switched the antenna of the DL0AO instance from the NS earth loop to the E-field probe. This produced a strong decode of your 0 UT transmission. It was also received again here in Nuremberg but a bit weaker.

So for some strange reason E-field seems to do better than H-field.

Best 73,
Markus (DF6NM)


-----Ursprüngliche Mitteilung-----
Von: Riccardo Zoli <riccardozoli80@gmail.com>
An: LF Group <rsgb_lf_group@blacksheep.org>
Verschickt: Fr, 11. Mai 2018 12:02
Betreff: Re: VLF: carrier at 8270.003

Hi VLF,

Thanks Markus! I'm still on air, same parameters and scheduling every 8 hours (0000, 0800, 1600 UTC).

Have a good day!

73 de Riccardo IW4DXW

Il 11 Mag 2018 00:09, "Markus Vester" <markusvester@aol.com> ha scritto:

Hi Ric,

your 0 UT transmission produced a plausible decode from my own suburban E-field antenna (attached), but surprisingly nothing from the N-S earth loop at the much quieter DL0AO site.

Best 73,
Markus (DF6NM)



-----Ursprüngliche Mitteilung-----
Von: Paul Nicholson <vlf0403@abelian.org>
An: rsgb_lf_group <rsgb_lf_group@blacksheep.org>
Verschickt: Do, 10. Mai 2018 13:16
Betreff: Re: VLF: carrier at 8270.003

Riccardo IW4DXW wrote:

> *QRG: 8270.003*
> *2 chars*
> *30 sec/sym.*
> *coding 16K21A*
> *CRC 27*

Two decodes from 00:00 transmission with constant reference phase:

Bielefeld 845km: Eb/N0 +2.6 dB, rank 3399, S/N -31.33 dB in 1Hz;
Todmorden 1413km: Eb/N0 +1.9 dB, rank 9422, S/N -32.07 dB in 1Hz;
Cumiana 371km: Eb/N0 -0.9 dB, no decode, S/N -34.80 dB in 1Hz;

--
Paul Nicholson
--

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