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Re: VLF: DK7FC's 9th VLF kite experiment

To: [email protected]
Subject: Re: VLF: DK7FC's 9th VLF kite experiment
From: Stefan Schäfer <[email protected]>
Date: Thu, 02 Dec 2010 19:31:43 +0100
In-reply-to: <[email protected]>
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Hi Chris,

Am 02.12.2010 17:40, schrieb Chris Gomoiu:
Hello Stefan, VLF,

Good luck there! I'll be looking for any trace of signal from you.
Fine! Your grabber is my hardest but realistic goal in this experiment. :-)
When looking to your grabber (http://qsl.net/4x1rf/vlf/vlfgrabber.htm) i see when DHO38 or JXN has a good SNR arround 10...11 UTC and arround my sunset. So i will try to transmit on 8970 Hz to that time. Maybe i find someone for QSP to the reflector again (Markus or Marco?)...

Any LF activity planned?

Yes. I will take the LF coil and the PA there as well. At least i will find where i have to make a tap on the coil to resonate the 200m and maybe even the 300m antenna. If this can easily be done i will transmit in CW and DFCW-4 and DFCW-90 or so. The 300m antenna has about 50% efficiency, so i need 1W TX power for about 1W ERP! ;-) My PA driver at 12 Vpp would probably enough to reach UK in DFCW-60 or so ;-) Will be an exciting test! But there is a lot that can happen on that way. The snow is just one of my worries but it works with some optimism ;-)

73, Stefan




73s
Chris 4X1RF


2010/12/2 Stefan Schäfer <[email protected]>
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 will get the permission for a 300m vertical antenna during daytime. The WX is promising on saturday and on sunday. Thus i 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

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