Quectel GSM/GPRS Module Series Command Manual page 22

GSM/GPRS Module Series
GSM QuecCell AT Commands Manual
AT+CFUN=4 //Disable phone both transmitting and receiving RF circuits.
OK
AT+CFUN? //Query CUFN settings.
+CFUN: 4 //The CUFN value is 4.
OK
AT+QSCANF=? //Test mode of QSCANF.
+QSCANF: (0-3),(0-1023,9999)
OK
AT+QSCANF=0,9999 //List the receiving level of 20 CHs in GSM 900 band according to descending in
dBm.
+QSCANF:
1, CH9, -57.2 //The receiving level of channel 9 is -57.2 dBm.
2, CH22, -66.2
3, CH24, -68.8
4, CH28, -70.0
5, CH66, -72.0
6, CH123, -72.0
7, CH69, -74.5
8, CH8, -74.5
9, CH10, -74.5
10, CH47, -75.0
11, CH3, -76.0
12, CH86, -76.5
13, CH55, -77.2
14, CH119, -77.2
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