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Re: LF: EbNaut from Todmorden

To: [email protected]
Subject: Re: LF: EbNaut from Todmorden
From: Gary - G4WGT <[email protected]>
Date: Sat, 12 Mar 2016 19:19:06 +0000
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Hi Paul,

Yes, I noticed the "blips" on the qrs120 grab, I have no idea what or why.

The sig on 8270Hz is local test, just from the DDS VFO to a short wire.

73, de Gary - G4WGT
MF-LF-VLF Grabber : http://myweb.tiscali.co.uk/wgtaylor/grabber2.html
Web : http://myweb.tiscali.co.uk/wgtaylor/index.html

.

On 12/03/2016 19:09, Paul Nicholson wrote:
Looking at Gary's page

 http://myweb.tiscali.co.uk/wgtaylor/grabber2.html

My signal shows up well on grab 2 but grab 3 there are
some glitches which I can't account for.

And scrolling down to grab 5 there's a signal on 8270
today which doesn't appear on my spectrogram here.
Perhaps Gary is doing some near field testing.

So far I don't seem to be making any impression on
Markus' receiver at

 http://www.df6nm.de/grabber/Grabber.htm

but the signal is clearly getting as far as Heidelberg

 http://www.iup.uni-heidelberg.de/schaefer_vlf/DK7FC_LF_DX_Grabber.html

Looking to change frequency soon.  Stefan advises 137.5 +/- 50Hz
to make use of OPDS receivers and Domenico suggested the lower
end of that band.  So maybe I will try

 Frequency: 137455.00000 Hz
 Coding: 8K19A
 Chars: 12
 Symbols: 848 at 2 seconds
 Duration: 1696 seconds, 00:28:16.00
 Repeat: Each hour, XX:00

Will start at 20:00 unless anyone has a better suggestion.
Probably QRT at 00:30 after the 00:00 message has completed.

--
Paul Nicholson
--


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