Forum: GNU Radio USRP2 RX2 Antenna Selection For fullduplex

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Firas A. (Guest)
on 2009-02-01 12:40
(Received via mailing list)

I want to do a full duplex transmission/reception using USRP2. According

Hamfred wrote that he did it by patching
gnuradio/usrp2/firmware/lib/db_rfx.c file as follows:

In struct db_rfx_xxxx_rx db_rfx_xxxx_rx = {


 .base.atr_txval = 0,
 .base.atr_rxval = MIX_EN,


 .base.atr_txval = MIX_EN | ANT_SW,    // Patch FULLDUPLEX
 .base.atr_rxval = MIX_EN | ANT_SW,    // Patch FULLDUPLEX

I did this modification (with full compilation and installation) but it
not working. Using, I still get the signals only when I
the antenna to TX/RX SMA port.

Where and what I should modify in usrp2/firmware files to do this
hacking. A
help will be appreciated.

Best Regatds,


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