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4.2.6
AT+CPAS (Phone Activity State)
Description
Reads the activity status
Execution of this command returns the activity state <state> of the CM52. This command can be used to
interrogate the CM52 before issuing a request.
Parameter
<value>
0
<state>
0
2
3
6
20
4.2.7
AT+CSQ (Signal Quality)
Description
Reads received signal
strength.
Execution of this command returns the received signal strength indication <rssi> and channel bit error rate
<ber>. This command displays the signal strength as an integer in the range of 0-31, where 0 represents
signals less than or equal to –113 dBm, and 31 represents signals greater than or equal to
integer values of 1-30 represent 2 dBm steps between these two extremes.
Example
(CM52 response in gray)
AT+CSQ?
+CSQ: 16,99
OK
Note: CDMA RSSI reporting consists of the receive channel power and the pilot energy (Ec/Io). To receive
the above response, a communication analyzer would be set as follows:
Communication Analyzer downlink level =
Communication Analyzer Pilot Offset =
Additionally, the BER value is only valid under the following conditions:
•
Must be In CDMA mode
•
Must be in conversation state
•
Frames actually had to have been sent
Syntax
AT+CPAS=<value>
Description
Report <state> only
Activity state
Idle
Origination
Connected
Incoming Call
Scanning
Syntax
AT+CSQ?
Signal strength = -81 dBm and bit error rate is unknown
-74 dBm
-7 dB (typical default setting)
Confidential
USERS MANUAL
Document number
1/198 17-4/FCP 101 3045 Uen
Possible responses
+CPAS: <state>
OK
Possible responses
+CSQ: <rssi>,<ber>
OK
33(158)
Revision
D
–51 dBm. The
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