[Openbts-discuss] B200 and phones wont connect

[Alexander S. <ale...@ya...>]

Hello Folks,
I have the USRP B200 with 2 Vert900 antennas and no power supply and also no GPSDO.I'm running OpenBTS 5.0 on Ubuntu 14.04 Desktop.
I am facing the problem ,that my phones Iphone 4s and a Samsung phone can see the Test PLMN 1-1 network, but they cant connect to it.While they are trying to connect to the network, openbts tells me this:
..
ALERT 4176:4202 2016-03-03T02:08:47.0 Transceiver.cpp:414:pullRadioVector: Clipping detected on RACH input
ALERT 4176:4202 2016-03-03T02:08:48.2 Transceiver.cpp:414:pullRadioVector: Clipping detected on RACH input
ALERT 4176:4202 2016-03-03T02:08:49.2 Transceiver.cpp:414:pullRadioVector: Clipping detected on RACH inputProcessing signal vector for sig 28
Done processing signal vector for sig 28
Rethrowing signal 28
system call during CLI select loop: Interrupted system call

..and then continues with the Alerts...

OpenBTS> noise
noise RSSI is -80 dB wrt full scale
MS RSSI target is -50 dB wrt full scale
INFO: the current noise level is acceptable.
Of course I have read about this issue in this mailing list, but I already followed all the hints, eg. kept distance between MS and the USRP and I also put GSM.Radio.RxGain to 10 or even less - still not working!
Any other advices?Would be very happy if I can get this thing going one day.
Big thanks in advance!

Best regards,Alex