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Looks like I'm getting some carrier on 137455 but
it's not very strong here (about 12 dB in 0.438 mHz). Stefan's opds
spectrogram is plagued by a set of spurs in that vicinity. Maybe
137465 looks a bit cleaner, and equally clear of Mike's strong
Opera transmission on 137460.06 Hz
Best 73,
Markus
Sent: Saturday, March 12, 2016 8:09 PM
Subject: Re: LF: EbNaut from Todmorden
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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