Hi Stefan
which again confirms that this path is less (not?) affected by solar
activity. Same as on the path to VK..
I wouldnt quite say that :-)) the Dst was rising rapidly and was
nearer -30nT over that period. The YV route my be a little as 3 hops with a
couple of "salt water bounces", as Markus says you nearly made in the
previous night at a Dst of probably around or slightly above -60nT. By
comparison the VK route is probably at least 5 hops so you are looking at
25dB more.....certainly need a little wind behind you :-)) but there may be
more opportunities than just at the equinox, though the darkness period is
most advantageous then.
Unfortunately Dst doesnt predict a good result, rather the better
probability a result. There are a confusingly wide range of results even on
a high Dst night.
Well done on these tests! It certainly is good to see marginal conditions
probed, and a few "urban myths" tested :-)) The deep search has certainly
enabled us to peep under the normal noise barrier and see what is actually
possible in these paths. If you dont see anything you dont know whether the
signal it is a couple of dB below detection or -100dB in other modes.
Alan
G3NYK
----- Original Message -----
From: "Stefan Schäfer" <[email protected]>
To: <[email protected]>
Sent: Monday, December 09, 2013 10:26 AM
Subject: Re: LF: OPDS32, first Europe to South America
Martin, LF,
Most amazing. There were even 7 decodes last night!!!
YV7MAE FK81BD Opera-32 correlation
http://df6nm.bplaced.net/opera/opds.zip
date time call distance frequency bandwidth snr
correlation
2013-12-09 05:58:12 DK7FC 7812km 137572.816Hz 4mHz -45.0dBOp 100% 18.8dB
2013-12-09 05:23:10 DK7FC 7812km 137572.811Hz 3mHz -41.6dBOp 100% 21.2dB
2013-12-09 04:48:09 DK7FC 7812km 137572.810Hz 3mHz -45.5dBOp 100% 18.7dB
2013-12-09 04:13:09 DK7FC 7812km 137572.808Hz 2mHz -49.2dBOp 87% 17.5dB
2013-12-09 03:03:07 DK7FC 7812km 137572.807Hz 3mHz -49.0dBOp 100% 17.7dB
2013-12-09 01:53:05 DK7FC 7812km 137572.805Hz 9mHz -48.3dBOp 100% 15.6dB
2013-12-09 00:22:45 DK7FC 7812km 137572.800Hz 8mHz -45.7dBOp 100% 17.0dB
This is the first night and all night before produced not even a single
decode.
DST levels were arround -40 nT
(http://lasp.colorado.edu/space_weather/dsttemerin/dsttemerin.html) which
again confirms that this path is less (not?) affected by solar activity.
Same as on the path to VK..
Thanks for the receive site in Venezuela!
73, Stefan/DK7FC
Am 09.12.2013 03:28, schrieb Maritn A. Echazarreta D.:
Yesss Stefan!!!!
Congrats again!!!
2013-12-09 01:53:05 DK7FC 7812km 137572.805Hz 9mHz -48.3dBOp 100%
15.6dB
2013-12-09 00:22:45 DK7FC 7812km 137572.800Hz 8mHz -45.7dBOp 100%
17.0dB
YV7MAE
Martin.
2013/12/8 Stefan Schäfer<[email protected]>:
LF!
Just a few minutes ago i saw the first decode of DK7FC on Martin's YV7MAE
LF
OPDS monitor in FK81BD:
http://dl.dropboxusercontent.com/u/74746618/LF/YV7MAE_LF_Grabber_OPDS.html
2013-12-09 00:22:45 DK7FC 7812km 137572.800Hz 8mHz -45.7dBOp 100% 17.0dB
I've manually updated the page each few minutes and hoped for a decode
and
now here it is :-)
Hope i can do it a few times more this night :-)
This is the path:
https://dl.dropboxusercontent.com/u/19882028/LF/DK7FC_YV7MAE.png
73, Stefan/DK7FC
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