From: Kurtis H. <khe...@cs...> - 2011-03-07 07:08:07
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Hello OpenBTS-Discuss! I recently installed a clocktamer unit in my USRP. Everything seems to be going smoothly, and I've been able to make and receive calls using the USRP. There's a little funkiness in the initial connection (using an N900), with it seemingly requiring that the phone fail to associate (giving an error message) before associating. I'm unsure if this is my issue, or something related to the phone. I was hoping there was some set of usrp commands to investigate the current setup's efficacy. usrp_probe doesn't seem to do much. Any ideas on how to evaluate my clock installation? I plan to attach the clock to a signal analyzer, but I was hoping for something using the USRP commands themselves. Thanks! |
From: Thomas T. <tt...@vt...> - 2011-03-07 17:06:16
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On Mon, Mar 7, 2011 at 2:07 AM, Kurtis Heimerl <khe...@cs...> wrote: > I was hoping there was some set of usrp commands to investigate the > current setup's efficacy. usrp_probe doesn't seem to do much. Any > ideas on how to evaluate my clock installation? I plan to attach the > clock to a signal analyzer, but I was hoping for something using the > USRP commands themselves. You can measure clock frequency offset against GSM base stations with kalibrate. http://thre.at/kalibrate/ Thomas |