I've been using an NI USRP-2953R for several months with a trivial
configuration: sending and receiving in "half-duplex" mode on the "RF
0" receive and transmit antennas. Now I need to try using the RF 0 RX
antenna and the RF 1 TX antenna. I'm using this terminology because
I'm a bit uncertain about the other terminology (daugherboard,
front-end, sub-device, channel, port, ...). I found the application
note "Frontends, Sub-Device Specifications, and Antenna Port
Selection", which is very helpful, but having an example would be
efven more helpful. The UHD library distribution example
"txrx_loopback_to_file" leads me to believe that I need a separate
multi_usrp object for each direction (tx_usrp, rx_usrp), but I also
need to work out the correct sub-device specification "X:Y" to pass in
the arg string.
Can anyone point me to other documents/tutorials/examples of such a
configuration?
--
Daryl Lee
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