Connect artificial ear to analyzer input 1.
Connect UPV unbalanced digital input to CBT SPDIF OUT.
Connect UPV unbalanced digital output to CBT SPDIF IN.
Make a suitable connection from the CBT RF output to the antenna input of the DUT. 
Settings of the CBT:
- Set the Bluetooth Connection COntrol to "A2DP (Sink) Profile" 
- In the Audio A2DP settings of the Network menu set "Channel Mode" to "Stereo". 
- In the AF/RF IN/OUT menu set "Connector Config" to "Digital Stereo Audio". 
- Establish a connection to the device unter test 
Insert earbud into pinna or place headphones on the HATS.
Set volume and all equalizer bands to maximum.
Start the measurement.