From: Xiaofeng Z. <zh...@ts...> - 2010-03-19 15:35:05
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Dear all, We are working on USRP (modified to 52MHz clock) with OpenBTS2.5.1 (under Ubuntu 9.04 + gnuradio 3.1.3) well, and could make a call among GSM cellphones. But one problem is that the USRP could not work stable, which may send out only noise (about 0~10dBm level) after it has worked well for half of hour or one hour. If we break the OpenBTS process and re-run it again, the USRP may work well again, and may also go to noise after some minutes. Does anyone find the same phenomenon? We are very appreciated if someone could give some comments. Best Regards! Xiaofeng Zhong |