Hi Stefan, Edgar,
nice work indeed! Yes there is a perfect
match to my local "Eu" capture:
As I was transmitting myself at the
time you will have to mentally fill in some gaps. However none of
my "NM"s made it to VK7 ... Daddy, I'm gonna need a bigger antenna
;-)
Best 73,
Markus (DF6NM)
Sent: Monday, September 03, 2012 10:20 PM
Subject: LF: Traces on 137 kHz in VK again
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
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