Message-ID: <5045111D.8030603@iup.uni-heidelberg.de>
Date: Mon, 03 Sep 2012 22:20:45 +0200
From: =?ISO-8859-15?Q?Stefan_Sch=E4fer?= <Stefan.Schaefer@iup.uni-heidelberg.de>
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To: rsgb_lf_group@blacksheep.org
CC: Edgar J Twining <edgarjtwining@virginbroadband.com.au>
Subject: LF: Traces on 137 kHz in VK again
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Hello LF group,

I just noted traces of my DFCW-180 transmissions again detected by Edgar 
J. Twining in Tasmania, QE37PD, 16806 km.
Capture: 
https://dl.dropbox.com/u/19882028/LF/DK7FC%20spectrum%201-9-2012-45.jpg

As usual the traces are very weak. With a carefully schooled eye, one 
can see traces of "DK7F" arround 136.1719 kHz. For example, the K was 
finished just a few seconds before 19:00 UTC. After my interpretation of 
that, i searched for a K in my grabber capture archive and found it 
right to that time: 
https://dl.dropbox.com/u/19882028/LF/EU60_01.SEP_20.00UTC.jpg

BTW DCF-39 showed a rather low S/N to that time. Ther can be a 
significant difference between the S/N peaks from DCF and me, although 
the distance is just roughly 400 km. This effect was also seen at YV7MAE.


Again many thanks to Edgar for running his receive system, continuously 
and daily providing spectrograms and plots. Edgars receive antenna is an 
omnidirectional E field antenna.

73, Stefan/DK7FC