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Dieter Spaar spaar at mirider.augusta.deHello Philipp, On Mon, 20 Jul 2009 20:19:16 CEST, "Dieter Spaar" <spaar at mirider.augusta.de> wrote: > > Not sure what you are measuring on peak one and two, but channel 123 > should be 959.6 MHz, this is most certainly the third peak. There might > be small signals (e.g. from the oscillator of the BS-11) on other > frequencies, but they should be much smaller than the main signal. In the meantime I did check with my spectrum analyzer. There is indeed a signal coming from the BS-11, even if nothing else is connected to the BS-11 (no serial connection, no E1). The signal starts to be emitted after the firmware download is complete. I could measure the signal at 942.4 MHz, the level is about -42 dBm (cable connection from the spectrum analyzer to TRX0, low-quality cable). The signal strength does not depend on the power amplifier setting, I wonder where it comes from (some internal oscillator working at that frequency ?). The signal is not very strong, so it should not cause major trouble (besides disturbing a weak signal which might be there from an "official" source if you are close to the BS-11). Best regards, Dieter -- Dieter Spaar, Germany spaar at mirider.augusta.de