Hi Garry,
Thank you for the report over such a distance in OPDS32. It makes it
worth all the efforts! And it is my best distance so far in that mode.
And it is interesting that you've got such nice results with a small E
field probe at such a low height. You know, there are still "experts"
who say that such a small antenna cannot work over a higher distance
and weak signals...
I hope you don't mind that i forward the email to the LF reflector
(private, not public), so that VO1NA, DF6NM and a small and slowly
growing group of OPDS friends can see the results to get some
motivation to continue spending effort in that nice 2200m band.
The season is just starting and i am sure there will be several more
chances for detections, maybe also from other EU TX stns.
Vy 73, cuagn, Stefan/DK7FC, JN49IK
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Guten Morgen Stefan,
I've been trying to decode your 137 kHz opera transmissions with the new
deep search code and last night was successful:
2013-11-03 01:04:18 DK7FC 7041km 137559.926Hz 22mHz -40.7dBOp 94% 18.4dB
2013-11-03 00:29:17 DK7FC 7041km 137559.924Hz 5mHz -46.5dBOp 97% 16.9dB
My clock is locked to GPS but for some reason the decode lines are 0.011
Hz high. I've since corrected that by modifying fc in opds.ini.
Your signal peeked out of the noise around 0100Z and is clearly evident
at the top of the attached ARGO QRSS30 capture (VO1NA is the lower 50%
duty cycle trace). The receive antenna was an e-probe up only about 3
meters in the back yard, running to an SDR-IQ and Windows XP PC.
Thanks for putting out such a regular potent signal!
--
73, Garry, K3SIW, EN52ta, Elgin, IL
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