Stefan, Thanks for reply. I tried std_2rxhb_2tx.rbf firmware from gnuradio 3.2.2 and results are the same. Without enabling transmitter at the receiver the received signal range is [-15e3; +15e3], and after enabling transmitter it became [-2400; +2400]. The workaround you mentioned is not applicable in my situation, since I need to receive and transmit from the same antenna.
I'm not sure if I enable receiver and transmitter simultaneously in the right way. Thanks. On Tue, Sep 22, 2009 at 9:55 PM, Stefan Brüns <stefan.bru...@rwth-aachen.de>wrote: > On Tuesday 22 September 2009 19:47:10 Andrey A wrote: > > Hello. > > I'm trying to build a two-way TDD system with two USRP1 boxes in pure C++ > > using libusrp and inband_2rxhb_2tx.rbf firmware. > > IIRC the ib firmware has a bug not switching the antennaes correctly. > Workaround: set RX antennae to RX2 and connect an antenna to each port. > > Stefan > > -- > Stefan Brüns / Bergstraße 21 / 52062 Aachen > phone: +49 241 53809034 mobile: +49 151 50412019 > > > _______________________________________________ > Discuss-gnuradio mailing list > Discuss-gnuradio@gnu.org > http://lists.gnu.org/mailman/listinfo/discuss-gnuradio >
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