Hello. I tried connecting antenna to RX2 and signal strength increased. I use std_2rxhb_2tx.rbf with RFX2400 DB. Am I correct assuming that if only RX is enabled then RX/TX antenna is used and if with TX and RX are both enabled TX samples go to TX/RX antenna, and RX samples go thru RX2 ?
If previous assumption is right, how to make TX and RX samples to thru the same antenna? Thanks. On Wed, Sep 23, 2009 at 6:54 PM, Andrey A <for.inven...@gmail.com> wrote: > 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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