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Fri, 22 Jul 2011
Update on the GSM network at the CCC Camp 2011

During the past weeks, I've been trying very hard to get to a technical solution for the setup regarding the private GSM network that we intend to operate at the CCC Camp 2011. Unfortunately, despite puting in way too much time that I don't have, no really good solution appeared. There were times when I was wondering if it would happen at all - mainly due to the lack of properly integrated / tested RF related issues like PA, LNA, duplexer, combiner, etc.

But it seems just in time Dieter came to the rescue. So now we have pretty much figured out the equipment and settled on a configuration. We'll have 2 Nokia Metrosite BTS with a total of 5 TRX, each running at 5W using borrowed equipment.

During the next 10 days, all the parts like antennas, cabling, plugs, adapters and the BTS units themselves should arrive at my place. Let's hope there are no serious fuck-ups that cause something to not arrive in time.

So all in all, there's a 99% chance we will have a functional GSM network. The Nokia A-bis support in OpenBSC will be brand new, so there might be some glitches here and there. But then, that's part of the fun. I'm already very curious to see what kind of coverage we get. I guess if we do things right, it should reach well into Finowfurt itself, and not just barely cover the camp grounds like we had at HAR 2009.

[ /gsm | permanent link ]