Crash of UmTRX transceiver with dual TRX

Alexander Chemeris alexander.chemeris at
Mon Jul 8 15:24:58 UTC 2013

On Mon, Jul 8, 2013 at 5:58 PM, Thomas Tsou <tom at> wrote:
> On Mon, Jul 8, 2013 at 3:33 PM, Andreas Eversberg <andreas at> wrote:
>> Andreas Eversberg wrote:
>>> just made osmo-bts ignore that. now i can provision both trx with
>>> similar setting, except slot type and and ARFCN. it seems to work now,
>>> but i get no rf power on second trx. i use ARFCN and 869 and 877.
>> i do also get no reception from the phone at second trx (late
>> assignment, my tester showed me power on TS0 uplink). seems that rx and
>> tx does not work for some reason.
> If the slots aren't enabled, then both uplink and downlink will be
> disabled. This patch should cause Tx slot setting to be ignored and
> will send whatever core submits. We need the slot setting to set the
> TSC / RACH correlation, so Rx is not as simple.
>> also i found that the transceiver leaks about 2 megabytes every second.
>> after some minutes my test machine runs out of mem space.
> Should be resolved in the same patch.

Could you please push this to the osmo-trx repository?

Alexander Chemeris.
CEO, Fairwaves LLC / ООО УмРадио

More information about the UmTRX mailing list