Question
I cannot seem to find any documentation pertaining to RF testing on the EG91 module. I have found the application note for RF testing, however I am having difficulties getting my module to perform AT+QRFTEST commands, even after following the instructions linked here.
What I have tried without success
AT+CFUN=0 //Disable GSM protocol stack.
OK
AT+QRFTEST=1,0,9,0,19,4100,0 //Transmit in FTM mode.
Running this sequence of commands that was outlined in the RF testing documentation, I ran into a CME ERROR: 323, which is not mentioned anywhere that I can find in the EC2x&EG9x&EG2x-G&EM05 Series AT Commands Manual
Conclusion
I am hoping that someone would be able to offer some insight as to what CME ERROR: 323 Is doing, and how it can possibly be solved on the EG91.