Hey.
Did I got it right that instead of using at commands and gprs-capable modem for clock calibration (as in http://gnuradio.org/redmine/wiki/1/OpenBTSClockCalibration) we can use output of [power] section of cell_log?
Have somebody tried this?
Above-mentioned page says that it "is obvious how the values were obtained" for executing ./kal script. As a matter of fact - it's not, at least not for newbies :(
For example I got following in cell_log: arfcn 740 -99 -105 -109 -108 -110 -107 -108 -103 -109 -108 -110 -100 Seems like pretty good signal strength.
No I should run ./kal -f NNN -u adjust clock in my usrp and run ./kal again.
But what's the formula for obtaining NNN from arfcn 740?
Can you advise me on some improving reading?
thank you, Max.
On Wed, 16 Mar 2011 01:51:33 +0100, suraev@stud.ntnu.no wrote:
Hey.
Did I got it right that instead of using at commands and gprs-capable modem for clock calibration (as in http://gnuradio.org/redmine/wiki/1/OpenBTSClockCalibration) we can use output of [power] section of cell_log?
Like any other method to view surrounding cells broadcast arfcns and its signal levels, like a netmonitor on some phones.
For example I got following in cell_log: arfcn 740 -99 -105 -109 -108 -110 -107 -108 -103 -109 -108 -110 -100 Seems like pretty good signal strength.
No, it's not. Notice the "-" in front of the value. This means the higher the value ("less negative"), the stronger the signal.
Regards, Mad
baseband-devel@lists.osmocom.org
-
Mad -
suraev＠stud.ntnu.no