[asterisk-biz] For sale: OpenBTS USRP test rig

Bret McDanel trixter at 0xdecafbad.com
Mon Sep 27 13:43:30 CDT 2010


On Mon, 2010-09-27 at 14:33 -0400, Steve Totaro wrote:
> Do you have the 52mhz clock too?


for those that do not know what he  is talking about ...
http://students.ee.sun.ac.za/~gshmaritz/?p=152&cpage=1

iphones and other "low quality" GSM radios require an external clock
connected to the USRP since the USRP has some clock drift.  Clock
syncing is important (almost critical) to proper GSM functionality.
Things that cannot adapt are in my opinion "low quality" since they are
done in a way that requires something external to tell them how to act.


-- 
Trixter aka Bret McDanel
website:  http://www.0xdecafbad.com
pgp key:  http://bit.ly/9XYK4b




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