Es gibt zwei Trägerfrequenzen, eine von der BS zur MS (Downlink) und eine für die andere Richtung (Uplink).
Gruß
Am 20.07.2009 um 18:39 schrieb dexter:
Hi folks.
We have a Toy-Spectrum-Analyser here, so i have measured the output of our BS-11 when initalized with -f 123
http://www.root.runningserver.com/pub/openbsc_spektralanalyse.png
Why are there 2 carriers emitted by the BTS?
I thought that openBSC uses only one TRX. I have verfied that the carrier must be emitted by the BTS. If i stop the BTS the carrier vanishes and the T-Mobile carrier comes through (much weaker, of cause)
I have no explaination for this effect, can anyone give me a hint?
regards Philipp
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Björn Heller Jabber: tec@jabber.hellercom.de