Hi Jay yes speculation it is but it is interesting to check where the shadow
is at 100km altitude when the sig comes in. There is also the possibility of
an E-region hop followed by a D-region hop. The last is unlikely to my mind
as D-region hops are much more highly attenuated by the photo-dissociated
electrons and towards late afternoon as the solar angle decreases the
attenuation increases. But its all hypothetical, as far as I am concerned
:-))
Good Luck with it all.
Alan
G3NYK
----- Original Message -----
From: <[email protected]>
To: <[email protected]>
Sent: Monday, October 14, 2013 2:25 PM
Subject: LF: OPDS T/A DF6NM
Markus
Success with two of the four transmission periods last night - early and
late. Had you been transmitting at 2300Z we probably would have had
another decode. 2200Z might be a little early right now.
As we head into mid winter conditions keep in mind earliest reception of
T/A signals have occured here (from well equipped transmitting stations
like CT1DRP, DF6NM etc) around 2045Z (1545 EST) - well before local
sunset. Alan has speculated this may be single hop. We may be able to push
that time back a bit with OP Deep Search. Also looking forward to possible
reception of more distant stations ... particularly Russian stations.
2013-10-14 04:33:26 DF6NM 6258km 137570.046Hz 3mHz -48.9dBOp 85%
16.9dB
2013-10-14 00:33:28 DF6NM 6258km 137570.047Hz 6mHz -44.4dBOp 91%
17.3dB
Jay W1VD WD2XNS WE2XGR/2 WG2XRS/2
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