|
From: Andrew B. <and...@gm...> - 2010-11-15 11:01:42
|
Hello, I am using an USRP from Ettus with Flex 1800 Rx and Flex 1800 Tx boards. I'm also running latest GNU-Radio and OpenBTS software compiled by hand. I also made the changes to the source code for the timing as suggest here: http://gnuradio.org/redmine/wiki/1/OpenBTSClockModifications So, OpenBTS runs happily... and I can even connect mobiles to it when running 52M transceiver mode with the GSM.Band setting at 850. However, if I put it on 900 or 1800... it doesn't work at all. Here is the output on the 850 band: Starting the system... 1289818145.4508 FORCE 139746679404320 Logger.cpp:109:gSetLogFile: setting log path to test.out 1289818145.4512 ALARM 139746679404320 OpenBTS.cpp:129:main: OpenBTS starting, ver 2.6.0Mamou build date Nov 11 2010 1289818145.4552 FORCE 140633529018144 Logger.cpp:194:gLogInit: Setting initial global logging level to NOTICE 1289818145.4553 FORCE 140633529018144 Logger.cpp:109:gSetLogFile: setting log path to test.TRX.out 1289818150.866954 139746679404320: And here is the output on the 900 or 1800 band: Starting the system... 1289818215.1912 FORCE 139866064344864 Logger.cpp:109:gSetLogFile: setting log path to test.out 1289818215.1917 ALARM 139866064344864 OpenBTS.cpp:129:main: OpenBTS starting, ver 2.6.0Mamou build date Nov 11 2010 1289818215.1956 FORCE 140553740953376 Logger.cpp:194:gLogInit: Setting initial global logging level to NOTICE 1289818215.1958 FORCE 140553740953376 Logger.cpp:109:gSetLogFile: setting log path to test.TRX.out *1289818220.2201 ALARM 140553741047568 Transceiver.cpp:551:driveControl: TX failed to tune 1289818220.2206 ALARM 139866064344864 TRXManager.cpp:349:tune: TXTUNE failed with status 1* 1289818220.744882 139866064344864: Something obviously isn't working. OpenBTS DOES stay open but mobiles cannot connect. I even tried the flashing technique using db-eeprom (forget the exact name) the 900 and 1800 but nothing worked. Does anyone have any ideas as to what this might be? Thank-you kindly. Andrew Barlow |