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Keith keith at rhizomatica.orgOn 16/06/2016 16:00, Max wrote: > Hi. Hi Max. > > I've noticed check for device type around > Transceiver52M/UHDDevice.cpp:772 - seems like USRP B200 is not supported > for multitrx configurations: > sudo chrt 20 ./Transceiver52M/osmo-trx -c 2 > sudo chrt 15 ./src/osmo-bts-trx/osmo-bts-trx -c > ~/.config/osmocom/osmo-bts-trx.cfg -i 192.168.122.1 -t 2 I'm sure Alexander will chime in and confirm, but I'm fairly sure that -c is only for Fairwaves hardware > Where does this limitation comes from? Is it just smth which is not > implemented (yet) or it's impossible to implement due to X and Y? > I have a feeling that the answer here will be that "multiple TRX is only supported on the UmTRX", however, this sparked a memory and a query: In the distant past Thomas worked on a multiARFCN implementation and I kind of remember a suggestion that this could work on a USRP, although the practical problems with RF amplification made it probably not feasable, or economically viable. https://github.com/ttsou/openbts-multi-arfcn show's updates > 4 years ago. I'm not sure if any of this made it into the Transceiver for osmo-trx I'd love to know. Keith.