[Discuss-gnuradio] Loopback on a WBX Board

[Steve Mcmahon]

I have a Rev 4 USRP2 board with a WBX daughterboard. I want to write a simple 
loopback test from the "TX/RX" port to the "RX2" port, just to transmit a 
simple 
1 MHz + 3 MHz multi-tone signal, modulated up to 2.2 GHz, and then receive it 
and write it to disk. Can I directly connect the two ports together, or do I 
need to insert an attenuator in between the ports?? Is there anything I should 
be aware of before running this basic loopback test?? I really appreciate any 
advice. Thanks a lot.

Steve McMahon