3. CONTROL AND STATUS
91
LZT 123 7468 R1A
3.28 AT+CSQ
Signal Strength
Returns the received signal strength indication <rssi> and channel bit
error rate <ber> from the ME. Test command returns values supported
by the TA as compound values.
Description
Command
Possible Responses
Execute Signal
Strength
AT+CSQ
• +CSQ: <rssi>,<ber>
• +CME ERROR <err>
• OK
• ERROR
Test if the command is
supported
AT+CSQ=?
• +CSQ: (list of
supported
<rssi>s),(list of
supported <ber>s)
• +CME ERROR <err>
• OK
• ERROR
<rssi>
Description
0
–113dBm or less
1
–111dBm
2..30
–109… –53dBm
31
–51dBm or greater
99
Not known or not detectable
<ber>
Description
0..7
As RXQUAL values in the table in GSM 05.08 subclause
8.2.4
99
Not known or not detectable
Содержание GM28
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