Hi Alan,
Am 15.05.2012 12:41, schrieb Alan Melia:
Well done Stefan and Martin.
Tnx!
I guess Stefan that the path is 4 hops and at
least 3 are probably over water. It may not be that much better in winter.
We will see. I'm looking forward to observe that path over a longer time
now. We know, it's not only propagation but also the absence of QRN what
is needed. May be an interesting combination there, so close to the
equator..
You want stable conditions for that speed QRSS.
Yes. If a loop is used (even if it's a normal loop) i think we can get
another 6 dB without problems, just after Martin's sunset. The the loop
cancels or reduces the signals from NW and SE and the backside is still
quiet, because in daylight.. Then, with these 6 dB improvement, we can
go to QRSS-60, so the QSB is not that critical...
73, Stefan/DK7FC
Best Wishes
Alan
G3NYK
----- Original Message -----
From: "Stefan Schäfer"<[email protected]>
To:<[email protected]>; "YV7MAE Maritn A. Echazarreta D."
<[email protected]>
Sent: Tuesday, May 15, 2012 1:29 AM
Subject: LF: DK7FC in South America
LF!
I just wrote to Martin/YV7MAE:
/May, the 15th 2012! 00:12 UTC. YV7MAE received first traces of DK7FC on
136.172 kHz in DFCW-180. Excellent reception of DCF39 too and low QRN/M,
after several antenna system improvements!
This is a first detection of a German amateur radio signal in South
America!
Congratulations!
/
I can see it live via the remote link, the grabber is still not updated
(each 10 minutes).
After another change in the antenna wire location (higher, longer..., i
can't stop him to improve each day), DCF39 showed up about 30 dB S/N in
1 Hz NBW (without noise reduction). I started the TX immediately. After
a few minutes i saw my K just 0.1 Hz below 136.172 kHz, as Markus
mentioned in the recent days.
It is still the long wire, about 80m, matched with a resonant circuit on
a ferrite rod which Martin is using. If this path works in the middle of
May, what will it look like in winther? And what when a directional
antenna is used?
I still can't belive it!
The capture is now on the grabber and will be saved in the archive site
which a added today.
My God, now the 7 is coming in!!!!!!!!!!!!!!! That is worth _*ALL*_ the
effort, by far!!!!
The path is 7818 km distant,
http://no.nonsense.ee/qthmap/?qth=FK81BD&from=jn49ik00wd
Take a look: http://dl.dropbox.com/u/74746618/LF/YV7MAE_LF_Grabber.html
73, Stefan/DK7FC
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