Hello,
For our emission tests in an anechoic chamber we need to be sure that the BT antenna is up and running. Of course we cannot connect via BT from outside the chamber, even though we are pretty close to our device, and our solution up to now has been to use a development board inside the chamber connected to a PC outside the chamber through a USB cable and to the device itself through BLE, and using some BLE service to ping the board. I was wondering though if there is a reliable output from the Nordic stack which would allow us to get rid of the development board, and connect instead the device itself to the PC through a USB cable in order to collect this output on the PC. A function like "IsBLEAntennaUpAndRunning" would work, to be clear 
Thank you.
Kind regards,
Stefano