Verifying the Device Connection Using LabVIEW

Perform a loopback test to confirm that the device transmits and receives signals and is connected correctly to the host computer.

  1. Attach the included 30 dB attenuator to one end of the SMA (m)-to-SMA (m) cable.
  2. Connect the 30 dB attenuator to the RX 2 TX 2 connector on the front panel of the USRP device and connect the other end of the SMA (m)-to-SMA (m) cable to the RX 1 TX 1 port.
  3. On the host computer, navigate to <NIDIR> » National Instruments » LabVIEW <Year> » examples » instr » niUSRP.
  4. Open the niUSRP EX Tx Continuous Async example VI and run it.
    If the device is transmitting signals, the I/Q graph displays I and Q waveforms.
  5. Open the niUSRP EX Rx Continuous Async example VI and run it.
    If the device is transmitting signals, the I/Q graph displays I and Q waveforms.