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Alexander Chemeris alexander.chemeris at gmail.comAmber & Sarosh, According to the GSM Standard, only TRX0 has to transmit constantly. Secondary TRX's can transmit only when there is actual data to transmit. So if you want to see transmission on the TRX1 you should either: 1. have more than 6 active call legs (more than 3 acive calls), or 2. make TRX0 SDCCH only and leave TCH only on the TRX1 and make a call. In either case you'll see that the transmission on TRX1 is not continuous, unless you have all TCH's on TRX1 busy. On Wed, May 6, 2015 at 3:38 AM, Amber and Sarosh <amber_sarosh at hotmail.com> wrote: > Hi > We have configured OsmoNITB, OsmoBTS and OsmoTRX to run two transceivers > using UmTRX. But somehow when the spectrum is monitored, the only frequency > that is detected is the one TRX0 is tuned to. ARFCN set for TRX1 is not > detected i.e. TRX1 does not seem to be transmitting on the specified > frequency. > Can anyone please tell what possibly could be the issue? > > Thanks & Regards, > Amber & Sarosh -- Regards, Alexander Chemeris. CEO, Fairwaves, Inc. https://fairwaves.co