[Openbts-discuss] Problem: USRP send out only noise

[Xiaofeng Z. <zh...@ts...>]

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