13 Apr
2011
13 Apr
'11
3 p.m.
Hi,
1. What is the purpose of the "RF cable"? Is the TX port of the master BTS looped through the second BTS? Or hase every nanoBTS his own TRX/RX? I am asking because I would like to use a nanoBTS-Booster with the multi-TRX setup and therefore require a combined RF signal.
I'm not entirely sure, but I think that's just the reference clock ? But in any case you can use splitter / combiner for both the RX and TX path. You will loose 3dB on the RX path because of the split but that might be ok with you if you have a LNA before hand anyway.
2. The example example "openbsc.cfg" configures the trx 1 as follows:
timeslot 0 phys_chan_config CCCH+SDCCH4 timeslot 1 phys_chan_config SDCCH8
No, all TCH should work fine. Cheers, Sylvain