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8.5
AT+CSQ Signal quality
The
execute command indicates the received signal strength
AT+CSQ
<ber>.
Syntax
Test Command
AT+CSQ=?
Response(s)
+CSQ: (list of supported<rssi>s), (list of supported<ber>s)
OK
Exec Command
AT+CSQ
Response(s)
+CSQ:
<rssi>,<ber>
OK
Reference(s)
GSM 07.07
Parameter Description
(num)
<rssi>
0
1
2..30
31
99
(num)
<ber>
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
99
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.
MC55_ATC_V04.00
Confidential / Released
PIN
!
-113 dBm or less
-111 dBm
-109... -53 dBm
-51 dBm or greater
not known or not detectable
as RXQUAL values in the table in GSM 05.08 section 8.2.4.
not known or not detectable
Page 171 of 475
and the channel bit error rate
<rssi>
ASC0 ASC1
MUX1
MUX2
%
%
%
%
MUX3 Charge
Last
%
!
!
!
3/17/06
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