GSM @ Camp 2011 preparations

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Clemens Hopfer datacop at wireloss.net
Fri Jun 10 13:18:06 UTC 2011


Hi,

On Saturday 04 June 2011 21:06:01 Harald Welte wrote:
>  * two antennas, circular, 18 meters above ground

Are you sure that this is possible? (because of the airfield)
The Chaoswelle Camp2007 page[0] states that 12m was the maximum antenna/mast 
height, but that might also be a myth (some chaoswelle guys I asked couldn't 
remember).


one more thing:
We (the ham radio guys from metalab/Vienna in cooperation with Chaoswelle) are 
planning to do some 2m (144MHz) EME[1] communications.

The path of the moon will be south with pretty low elevation, so our 
communications path will be almost directly above your heads ;-)

More about the setup on the camp wiki[2], but expect abt. 30dBW PA output.
Professional equipment should have no problems with that, however wideband 
hardware like the WBX, Funcube Dongle etc. might not like it.

>  * from August 2nd through August 15th, i.e. we have time for build-up
>    and can also run it one more day during shutdown of the camp

We will be there 3-4 Days prior the opening event, if you need some hands for 
build-up (mechanical/HF/whatever) we'll be glad to help.

regards,
Clemens Hopfer, OE1RFC

[0] http://www.chaoswelle.de/Camp2007 (german, look at "Regeln")
[1] http://en.wikipedia.org/wiki/EME_%28communications%29
[2] https://events.ccc.de/camp/2011/wiki/Moonbounce




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