Jay, LF,
This night i will continue with LF transmissions, same procedure.
So far the conds in EU and to 4X are excellent!
Maybe we can make it this night to W1...
73, Stefan/DK7FC
Am 12.06.2012 14:10, schrieb Stefan Schäfer:
Hi Jay,
We still have no success in Jnue so if we want to get a full call
detection in each month we have to find a suitable days soon.
Well, all right about the DST stuff. However you know i simply like
transmitting so i usually do not care about the condx. From time to
time there is a surprise een in "bad" conds. Like yesterday! 4X1RF
temporary started his grabber in Haifa and to my surprise we got very
good results over that 2850km distance. About 25 dB S/N, see
https://dl.dropbox.com/u/19882028/LF/Juni2012.jpg
Sure, crossing the pond is another story. Let's do it in the coming
days :-)
BTW what about your TX? Are you ready for a transmission?
73, Stefan/DK7FC
Am 12.06.2012 12:12, schrieb [email protected]:
Sefan
Somehow missed your e mail so no report from here. With the DST at
'disturbed' levels it is unlikely that I would have had reception of
your signals. It might be a good idea to check
http://lasp.colorado.edu/space_weather/dsttemerin/dsttemerin.html for
the DST levels before an overnight T/A attempt. Generally speaking,
condx are favorable when the DST has been at -10 nt or better for a
couple days. The second chart down shows that the 9th or 10th would
have been better T/A nights. The big dip starting on the 10th is a
problem.
Jay W1VD WD2XNS WE2XGR/2
----- Original Message ----- From: "Stefan Schäfer"
<[email protected]>
To: <[email protected]>
Sent: Monday, June 11, 2012 6:09 PM
Subject: LF: Beacon to the west
LF,
Once again i'm transmitting DFCW-90 on 136.172 kHz over the night.
The TX is already on air...
In a few days the sunshine time is as long as possible here, so it
may be a bit difficult to become visible in TA. But who knows...
At least the summer time allows excellent results on LF for
distances below 3000 km. Probably because the area in darkness is
small on the northern hemisphere and so the noise from far away is
attenuated. So the distances within the first hop range may be a bit
lower than in winther but maybe the noise is even lower so S/N
improvement of some dB results.
At least i've never been audible in winther at YO/4X1RF. We've done
many tests and the radiated signal was even 3 dB stronger than a few
days ago where the signal became audible. Now i'm thinking different
about the possibilities of that band in the summer time!!
73, Stefan/DK7FC
|
