Hello Jacek,
Thank you, interesting! :-)
I just saw that the signal on 8970 Hz is strongest at the end, means the
last dash of the "M" while the 1 hour transmission is rather weaker. But
my ERP must have been higher during the 1 hour transmission. There must
be some propagation effects here!!
Furthermore i saw that your QRN (not QRM i suppose) is already coming
up during the "GM" message on my grabber it started to rise at about 17
UTC, so about 6 hours later.
My final transmission on 8970 Hz, arround 15 UTC, is the strongest
signal on my grabber although i know that the kite was lower and TX
power about 3 dB lower, additionally.
So, maybe we should watch these transmissions more carefully. Is it
possible, that not just the signal but the SNR(!) comes up just before
the QRN is rising again?
OE3GHB's 5170 Hz capture also shows that my transmission was done during
the QRN started to rise at his location!
We might take a look on this effect within the next tests!
Best 73, Stefan/DK7FC
Am 27.10.2010 22:39, schrieb Jacek Lipkowski:
I've summarised results from Stefan's 8th VLF kite experiment here:
http://www.lipkowski.org/~sq5bpf/dk7fc_20101023/index_en.html
VY 73
Jacek / SQ5BPF
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