|
Hi Stefan also here nothing on the
screen,
henny pa3cpm.
----- Original Message -----
Sent: Sunday, August 01, 2010 9:47
PM
Subject: LF: RE: DK7FC's 6th VLF kite
experiment
Hello Stefan,
thanks for the experiment,unfortunataly nothing seen on the
screen,
73
Victor
PA3FNY
Dear LF/VLF group,
It took a long time
to get a proper wind forecast in a time sector where i can do a kite
experiment. Also it took a long time to get the special permission for the
new kite antenna.
But now, if the wind will be enough and if there
is no rain on Sunday, the 1. August, i will make a new kite
experiment.
The first time i will try to use a 200m vertical
antenna and 600W TX power. The L of the loading coil will not be reduced
in this experiment and so i will transmit at arround 6,5 kHz, the 46 km
or 47 km band! This is since i do not yet know the actual antenna C
(EZNEC says 972 pF). The ERP will be arround 16 mW (first
estimation). This is about 10 dB more than in the first and successful 2nd
experiment on March, 15th. Also it is said that propagation on 6 kHz is even
better than on 9 kHz! The first time it could be realistic to reach the
1A antenna current mark!
Since some weeks i have set up a
grabber in DFCW-120 mode (just to cover a broader frequency range) at http://www.iup.uni-heidelberg.de/schaefer_vlf/DK7FC_VLF_Grabber2.html
If you want to catch my signal, you can look there where i am actually
transmitting. After some resonating tests i will transmit in good old
DFCW-600, so it is the best you use a 3...5 mHz FFT and about 1 minute
per pixel.
Starting time is 8 UTC, maybe some time later since
it is the first experiment with such an antenna! I still do not know if big
problems will occur but i am a DREAMER (remembering the 3rd
experiment: http://abelian.org/vlf/ss100321/
). But don't be disappointed if it would be failed. Actually it cannot fail
since there will be found improvements for the next test!
TX QTH is as
usual in JN49IS, 49.77647N 8.699525.
The summer time and maybe day
time may be not the best but it is an important test for the winther period.
Maybe we will see some surprises depending propagation on arround 6 kHz. And
it will be the first time that an amateur reaches the far field and
hopefully more than 1 Lambda on such a low frequency :-)
Any RX
reports and ideas/hints (before and after the test) are very
appreciated!
Best 73, Stefan/DK7FC *excited*
No virus found in this incoming message.
Checked by AVG -
www.avg.com
Version: 8.5.441 / Virus Database: 271.1.1/3043 - Release
Date: 08/01/10 06:34:00
|
|
