Westermo GDW-11 - Manual (Page 33)

Network service commands 33 6615-2220
Network service commands
+CSQ – Signal Quality
Description:
This command is used to ascertain the received signal strength indication (<rssi>) and
the channel bit error rate (<ber>) with or without a SIM card inserted.
Syntax:
AT+CSQ
Response syntax:
+CSQ: <rssi>,<ber>
Parameters:
<rssi>
0: –113 dBm or less
1: –111 dBm
30: –109 to –53 dBm
31: –51dBm or greater
99: not known or not detectable
<ber> :
0...7: as RXQUAL values in the table GSM 05.08
99: not known or not detectable
Command example Possible responses Note
AT+CSQ +CSQ: 21, 0 RSSI: 21 and BER: 0
OK