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Alexander Chemeris alexander.chemeris at gmail.comOn Sat, Sep 21, 2013 at 6:39 PM, Andreas Eversberg <andreas at eversberg.eu> wrote: > Alexander Chemeris wrote: >> >> We could try that, but I think the issue is elsewhere, as everything >> works in single-trx mode. > > dual-trx seems to be the issue. i would like to try that out. the problem is > that i have two umtrx, one has bad reception, but dual trx work (the first > one you sent me), the second umtrx works good, but there is no rx/tx on > second trx (second transceiver keeps cold). The second case is weird, since we test both channels at the fab. You're sure that you're using the latest stable firmware, latest UHD-Fairwaves and osmo-trx with "umtrx_dual_test" branch? Have you tried to check the second channel with GnuRadio or rx_samples_to_file or tx_waveforms console utils? If this doesn't work - send it to us for repair. May be something was damaged during transportation. > you offered me to repair the umtrx. i would like to send back the first > umtrx, so you can check it. i could also send you both umtrx for a check. > can you provide shipping address? I will send in a separate e-mail. -- Regards, Alexander Chemeris. CEO, Fairwaves LLC / ООО УмРадио http://fairwaves.ru