Siemens M1 manual AT+CSQ Signal quality, At+Csq, Receive, Errors, +CSQ 10

Technical reference section

AT+CSQ - Signal quality

The quality of the radio connection between the GSM module and the base station varies depending on environmental conditions. This command provides you with infor- mation on the current reception quality.

		AT+CSQ
Command		Result
AT+CSQ		Displays current receive values.
AT+CSQ=?		Displays a list of values representing receive levels and
		receive errors.
		AT+CSQ, AT+CSQ=?
Command		AT+CSQ
Result code		+CSQ: <receive level>, <receive errors>
<receive level>
0		-113 dBm or less
1		-111 dBm
2...30		-109... -53 dBm
31		-51 dBm or greater
99		Unknown or cannot be detected
<receive		(As a percentage): See GSM 05.08, section 8.2.4, Range
errors>		of Parameter.
99		Unknown or cannot be detected
Example:
Enter:	AT+CSQ
GSM module:	+CSQ: 10, 1
	OK

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