Re: LF: VLF

[Stefan Schäfer <schaefer@iup.uni-heidelberg.de>]

Nice copy Eddie! The SNR is stronger than in Heidelberg. It seems the UK QRN is lower than in EU at least in the summer time! Strange, it looks like Uwe's signal is drifting in your picture.

Uwe, i've not identified the message so far. Was the transmission interrupted by rain and some accidents?

73 from Cork /Ireland, IO51SV25, Stefan / EI/DK7FC

Am 22.03.2011 09:16, schrieb qrss@talktalk.net:

Hi Uwe

Your signal was not as strong as last night in IO92ng - 720km. Attached is my capture in 47uhz B/W. Ossi has some frequency drift so does not appear at this resolution.
I have no explanation for my apparent frequency variation apparent in this GQD locked SpecLab display.

73 Eddie G3ZJO

On 21/03/2011 22:07, uwe-jannsen@kabelmail.de wrote:

Hi Mal,

it wasnt me.
I switched the TX on at 1755UTC.

your question conc. the coils in use:
Ive got seven single layer coils d=63cm, h=75 (water bins), abt 4300 windings,

the pitch is 2,45mm, wire d=0,75mm litze,

pse see:

 

http://www.dj8wx-dl.de/DSC00780

 

measured 244mH, connected to the 136kHz L aerial (300m topload).

thanks agn, Mal

GL
Uwe/dj8wx/jo43sv

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Von: rsgb_lf_group@blacksheep.org
Gesendet: 21.03.2011 15:00
An: rsgb_lf_group@blacksheep.org
Betreff: LF: VLF

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VLF GRP

Trace visible today on 8970.02 visible until around 1230 utc I suppose it could be UWE again

73 de Mal/g3kev