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Date: Fri, 03 Dec 2010 19:39:56 +0100
From: =?ISO-8859-1?Q?=22Jean-Pierre_M=E9r=E9_=28F1AFJ=29=22?=
 <jpm.f1afj@online.fr>
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Subject: Re: VLF: DK7FC's 9th VLF kite experiment
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Hello  Stefan ,

Ok ! will be qrv for listening  around  08:00 utc

73  Jean-Pierre f1afj  JN06ht




Le 03/12/2010 18:08, Stefan Sch=E4fer a =E9crit :
> Dear VLF/LF group,
>
> I will do my 9th VLF experiment* tomorrow, saturday 4th December.* The=
 permission for a 300m vertical antenna is available!=20
> The wind forecast changed again and tomorrow is a very suitable day with=
 stable wind and some sun. Anyway the temperature is=20
> about -6 =B0C. The forecast says that the wind will come up arround 9 UT=
C and it was shown that the 24h forecast is very=20
> accurate to the truth. Thus i plan to *start transmitting arround 9 UTC*=
. This may be unfavourable for a TA contact but it=20
> just makes no sense before sunrise here without wind. So we need a even=
 greater wonder ;-)
>
> My planned program (if all works well) is:
> -Trying to use the 300m vertical on 8970 Hz. At 550W this may radiate up=
 to 100 mW ERP!
> -Transmitting a long carrier (about 40 minutes) and after that a short=
 message in DFCW-600 on 8970.00000 Hz (50 mHz DFCW-shift)
> -Transmitting a CW on 8970 message for a local test (recording in 4.7 an=
d 17 km distance)
> -Maybe transmitting a short message in DFCW-120 on 8970 Hz
> -Transmitting DFCW-600 on 6470 Hz. I have to use the 200m antenna for th=
is.
> -Transmitting DFCW-600 on 5170 Hz. Since the coil is improved now i can=
 manage to feed more power in the system. The last time=20
> it was 150W. Maybe i can reach the full 550 W this time.
> -Building up the 137 kHz system during the VLF transmissions and doing=
 some resonating tests with the 200m and 300m antenna.
> -Transmitting CW (137.7) and DFCW-4 (137.7) and DFCW-60 (137.777 or 136.=
320, after talking to Markus or the other QSP partner).
> -Maybe coming back to 8970 just befor sunset
> -Trying to reach as most stations as possible.
> -Trying to make a new distance record, e.g. 4X1RF on 8970 Hz in 2873 km=
 and/or EI8JK on 6470 Hz in 1310 km.
> -all i have forgotten
>
> The signals are tracked by a GPS module and are transmitted by using DL4=
YHFs SpecLab! The accuracy is about 10 ppb.
>
> You can follow the activity on many grabbers. Mine is in 40.00 km distan=
ce and is the nearest one. As usual, 8970 Hz can be=20
> watched at http://www.iup.uni-heidelberg.de/schaefer_vlf/DK7FC_VLF_Grabb=
er.html , 6470 Hz and 5170 Hz at=20
> http://www.iup.uni-heidelberg.de/schaefer_vlf/DK7FC_VLF_Grabber2.html =
 (the VLF-PC has had a power supply failure tonight.=20
> This has been exchanged today, so some windows (especially 6000 and 6000=
0)) have lost some data. I hope it works now...
> The 4X1RF grabber which is one of my goals is available at http://qsl.ne=
t/4x1rf/vlf/vlfgrabber.htm. There are several other=20
> grabbers that have and will be announced here.
>
> All reports are very much appreciated!
>
> Wish you fun and low noise :-)
>
> Best 73, Stefan/DK7FC
>
>
>
>
> Am 02.12.2010 13:13, schrieb Stefan Sch=E4fer:
>> Dear VLF/LF group,
>>
>> The wind forecast is still promising and so i announced my next VLF/LF=
 kite experiment at the german air traffic control and=20
>> will get the permission for a 300m vertical antenna during daytime. The=
 WX is promising on saturday _and_ on sunday. Thus i=20
>> will decide the day tomorrow since the forecast becomes most probably=
 as estimated 24 hours before. My favorite day is saturday.
>> So, i will inform you tomorrow more detailed about the planned program.
>>
>> Will someone try an attempt to receive that signal? :-)
>>
>> 73, Stefan/DK7FC
>