I found that <Tx_power> work only on range 8-19 for “GSM900” on module UG912U-GL.
If I using 5,6 or 7, it will auto quit the QRFTESTMODE (RF FTM)
Is there any setting I need to use power level 5 - 7?
I (00:03:47.596) cmd_eg91: AT+QRFTESTMODE?
+QRFTESTMODE: 0
OK
I (00:03:52.006) cmd_eg91: AT+QRFTESTMODE=1
OK
I (00:04:33.266) cmd_eg91: AT+QRFTEST=“GSM900”,62,“on”,5,1
OK
I (00:04:36.396) cmd_eg91:
RDY
I (00:04:46.426) cmd_eg91: AT+QRFTESTMODE?
+QRFTESTMODE: 0
OK
I (00:04:51.436) cmd_eg91: AT+QRFTESTMODE=1
OK
I (00:04:58.476) cmd_eg91: AT+QRFTEST=“GSM900”,62,“on”,8,1
OK
I (00:05:14.186) cmd_eg91: AT+QRFTESTMODE?
+QRFTESTMODE: 1
OK
I (00:05:21.886) cmd_eg91: AT+QRFTEST=“GSM900”,62,“off”,8,1
OK
I (00:05:28.336) cmd_eg91: AT+QRFTESTMODE?
+QRFTESTMODE: 1
OK
I (00:05:32.386) cmd_eg91: AT+QRFTESTMODE=0
OK