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Christopher Friedt chrisfriedt at gmail.comSo let me ask a couple of questions about OpenBSC to clarify things for myself. What are the requirements for running OpenBSC ? a) a USRP2 b) some kind of computer with gigabit ethernet (recommended hardware? what kind of load would this be responsible for?) b) a broadband internet connection c) anything else? Some kind of VOIP account somewhere? The reason I'm asking is that I've been doing quite a bit of work with the USRP2 at university, and have been considering buying one for myself for quite some time (although as a student, it's hard to justify the price). My professional / academic / hobby interests definitely involve hacking mobiles, investigating mobile radio, hacking various arm devices, even hardware design, etc, and I guess that OpenBSC would be ideal to for testing out osmocom baseband firmware (rather than having a commercial provider's black box for a BS). I guess another question I could pose to the list would be: Is the USRP2 hardware-capable of supporting something UMTS, EDGE, etc? I know that the spec sheets say that it's capable of 50 MHz of instantaneous bandwidth, but I believe that the high data rate 3G (and further) protocols are using wideband OFDM. From my understanding, I would imagine that it would be necessary to support much more than 50 MHz of instantaneous bandwidth, or somehow be able to load the transceiver buffers quickly and sequentially. then push a broad spectrum in parallel. Perhaps this can be achieved with a MIMO configuration, or with a specialized daughter card. Any thoughts? C