LF,
It looks like the LF path to VK is now much more promising than a few
weeks ago.
I just got informations and images from Edgar J. Twining, a well
equipped SWL in VK7. He is the one who does the TOP-5 LF DX over a
distance of 16805 km (http://136.73.ru/h_qso/index.htm). Edgar is
continually monitoring the LF EU DX window and provides plots and
spectrograms of DCF-39 over that distance.
Today i started the TX very late, as the band already closed again. But
i was wrong. The DCF level dropped but the noise too. So i stopped
although there have still been chances. Anyway he got some traces on the
right QRG to the right time and i was actually transmitting the
displayed dashes (parts of a D), see
https://dl.dropbox.com/u/19882028/LF/DK7FC%2027-8-2012-204.jpg A
capture to compare the transmitter side to that time is here
https://dl.dropbox.com/u/19882028/LF/EU60_27.AUG_21.15UTC.jpg
This is Edgar's DCF spectrogram, showing an open path to that time:
https://dl.dropbox.com/u/19882028/LF/DCF39%20plot%2027-8-2012.jpg
It is not a very clear proof that these are my traces so we have
certainly to repeat this. However it looks promising :-)
Others may comment.
Just want to pass this info to those who are interested in LF DX, if
receiver, transmitter or lurker :-)
Tomorrow i will start to transmit DFCW-180 on 136.172 kHz again, 18 UTC.
73, Stefan/DK7FC
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