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Coming
in more than 20 dB above the noise,
73
Victor
DK7FC is transmitting with a good
signal on 8.97KHz!!
You can see his signal on my grabber
http://www.qsl.net/dd7pc/vlfgrabber_dd7pc.html
73
Marco,
DD7PC
Hello LF Group,
Short update from
Stefan, DK7FC - he is ready and try now to bring up the kit. Wind is now
increasing from zero and he hope it comes up.
I keep you
updated.
Regards
Marco, DD7PC
From:
[email protected] [mailto:[email protected]]
On Behalf Of Stefan Schäfer
Sent: 21 October 2010
17:26
To: [email protected]; Paul; Renato Romero; Barzen,
Guido; Bernd Grupe; Christian Axtmann; Bernd Strehhuber; George
Vastianos
Subject: VLF: DK7FC's 8th VLF kite
experiment
Dear VLF,
This weekend i
plan to do my next kite experiment. I have got the permission for a kite
ascent up to 300m above GND on my QTH in JN49IS36VH.
I will be QRV
either on saturday or on sunday, depending on the wx. Attached you see
the current wind forecast. For saturday the wind is not optimal, a little weak
but it will be dry. On sunday the wind is quite strong and stable but there is
probably some rain... I will have to see on friday evening if i can start on
saturday or sunday and will announce that here.
If i will start on
sunday, where the SAQ transmission takes place, this will be no problem since
one can listen to SAQ and receive my transmission on an other computer based
RX (e.g. SpecLab), so both can be done to the same time :-).
The
starting time should be as early as possible. I have the permission at 6...16
UTC!
The program is to...
- rise the 200m vertical and transmit
a long carrier (30 min) on 8970 Hz, after that a message in DFCW-600 and after
that a message in DFCW-120, then a short CW test.
- transmit on 6470 Hz in
DFCW-600 hoping to be copied at further stations (maybe M0BMU, SQ5BPF, OE3GHB,
PA3FWM...?)
- if the wind will be optimal i will add another 100m and will
try to transmit at 5170 Hz, 58 km band. This might be once again the lowest
frequency an amateur has ever transmitted and reached the far field and above
1 Lambda, so each reception will be a WR for amateurs ;-) BTW, my grabber in
Heidelberg is in < 1 Lambda ;-) The mode will be DFCW-600 as well.
-
Then, coming back to 8970 Hz (maybe in the late afternoon) and transmit a
looong carrier for long time integrations, maybe for a new ODX.
- reach 1,4
A at 8970 Hz, 1 A at 6470 and 5170 Hz
- be detected at 3 new stations and a
new ODX ;-)
- use a GPS disciplined transmitter (trying SpecLab as the VFO
and DFCW generator the first time)
- measure the R, 'C' of this 300m
vertical on 137 kHz, preparing a new test there ;-) Since it is 55 % of a full
size lambda/4 GP, 5 pF/m is not valid i assume
- be fascinated by the view
of such an antenna which easily finds place in my car after the test
;-)
Until now i don't know who of the german LF group members would be
possibly on the phone to make QSP to the reflector, just like Markus did it in
the past. If there is a german member who likes to do that job, please send me
a personal mail to exchange the phone numbers (Festnetz oder O2). Otherwise i
have to play my game there alone and will see what happend in the evening
;-)
BTW, the generator is running again. It started to run again just
as i have packed all my stuff in the car after the last experiment :-/ Never
mind...
Have i forgotten something?
Please tell me if you think
it is no good idea to transmit during the SAQ transmission or what is your
favorite day, if both is possible here. I would prefer sunday, if the rain
forecast changes to sunny :-)
73 and looking forward to the weekend
:-)
Stefan/DK7FC
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