When I run TX tests with the AT%XRFTEST command, I can start the TX test without any problem but then the modem stops responding to AT commands. For example, if I send
AT%XRFTEST=1,1,13,7800,23,1,0,6,0,0,3,3,0
I get this response from the modem:
%XRFTEST: 314
OK
OK
and I see the modulated carrier I expect. However, after a second it goes away, and I can't send any other AT commands. If I reset the 9160 I can do it again, but the thread I use to send AT commands stops being able to send AT commands after the initial XRFTEST command.
This is on NCS v1.7.0 and MFW 1.3.0.