[BC66] AT+QLOCKF command to lock EARFCN


My application needs to power on and off BC66 all the time after data transaction has completed.

When AT+QLOCKF command is used to lock EARFCN and offset, does it need to send this command every time after BC66 power on? Or BC66 will store the current EARFCN and offset in its non-volatile memory and only requires to send this command when lock another EARFCN?

If the QLOCKF command is required every time after BC66 power on, when is the appropriate time to send this command? Assuming BC66 always use this EARFCN and offset for network registration is desired.

Thank you for your kind attention.