MC55i AT Command Set

MC55i AT Command Set
8.5 AT+CSQ
8.5 AT+CSQ Signal quality
The AT+CSQ execute command indicates the received signal strength and the channel bit error rate
.
Syntax
Test Command
AT+CSQ=
Response(s)
+CSQ: (list of supporteds), (list of supporteds)
OK
Exec Command
AT+CSQ
Response(s)
+CSQ: ,
OK
PIN ASC0 ASC1 MUX1 MUX2 MUX3 Charge Last Reference(s)
- + + + + + - - - GSM 07.07
Parameter Description
(num)
0 -113 dBm or less
1 -111 dBm
2..30 -109... -53 dBm
31 -51 dBm or greater
99 not known or not detectable
(num)
To check the bit error rate there must be a call in progress to obtain realistic values. If no call is set up, there is
no BER to be determined. In this case the indicated value may be 0 or 99, depending on the SIM card.
0..7 as RXQUAL values in the table in GSM 05.08 section 8.2.4.
99 not known or not detectable
Note
• After using network related commands such as AT+CCWA, AT+CCFC, AT+CLCK, users are advised to wait 3s
before entering AT+CSQ. This is recommended to be sure that any network access required for the preceding
command has finished.
MC55i_ATC_V01.201 Page 175 of 482 1/14/09
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