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Try this script included in AT Command Tester Tool.
//Script: at+autocsq
//This AT command is applicable for SIMCOM modules only
//Check SIMCOM Module AT Command documentaiton
//Set CSQ report
?
//Get the command responses
AT+AUTOCSQ=?
//Wait for 2 seconds
WAIT=2
//Response format is +AUTOCSQL
//
//
AT+AUTOCSQ?
//Wait for 2 seconds
WAIT=2
AT+AUTOCSQ=0,0
//Wait for 2 seconds
WAIT=2
?
//CSQ report every 5 seconds
AT+AUTOCSQ=1,0
//Wait for 2 seconds
WAIT=2
//CSQ report when rssi or ber chabges
AT+AUTOCSQ=1,1
Output of above script in AT Command Tester Tool.
AT+AUTOCSQ=?
+AUTOCSQ: (0-1),(0-1)
OK
AT+AUTOCSQ?
+AUTOCSQ: 0,0
OK
AT+AUTOCSQ=0,0
OK
AT+AUTOCSQ=1,0
OK
+CSQ: 17,99
AT+AUTOCSQ=1,1
OK
+CSQ: 13,99
+CSQ: 16,99
+CSQ: 13,99
+CSQ: 16,99