I've created https://projects.osmocom.org/issues/1963 and linked it to 1648 for -m issue.
I've tested with -x and external clock already. Unfortunately I can't promise to dig deeper with spectrum analyzer any time soon due to other tasks at hands. Could you please attach your known-to-work config files to #1648 so we have some reference point for future tests?
On 03.03.2017 12:59, Alexander Chemeris wrote:
Hi Max,
Multi-trx works properly with UmTRX which is our reference platform. We've also done partial testing with OpenCellular - spectrum analyser showed that TX is fine, but we haven't tested with a phone. With UmTRX we tested everything.
Since OpenCellular is a B210 derivative, it should work fine as well.
Could you try adding -x option to osmo-trx to enable external clock? If you have a spectrum analyser, I would recommend you to use it to test the signal and frequency offset of the signal.
On general, if everything starts and you don't see a network, it's most likely a clock or RF issue.
For -m option fail it would be great if you create a ticket and attach logs.