Technical information

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3-198 AT Commands Reference Manual August 5, 2008
Default value: On first power up, the jamming detector is not active (i.e. the default value for
<mjdc_mode> is "0").
The following table shows the +MJDC parameters.
Example
AT+MJDC = 1 // enable the jamming detector
+MJDC:0 // no jamming is currently detected.
OK
AT+MJDC?
+MJDC: 1,0 // jamming detector is enabled but no jamming is currently detect.
OK
AT+MJDC = 0 // disable the jamming detector
Command
Type Syntax Response/Action Remarks
Set
AT+MJDC=<mjdc_
mode >
OK
+MJDC:<jamming_det
ection>
Or:
+CME ERROR: <err>
The set command configures the
jamming mode.
NOTE: <jamming_detection> will be
displayed only when jamming
detector is enabled (i.e.
<mjdc_mode>=1).
Read
AT+MJDC? +MJDC:
<mjdc_mode>,[jammin
g_detection]
OK
The read command returns the current
settings.
NOTE: [jamming_detection] will be
displayed only when jamming
detector is enabling (i.e.
<mjdc_mode>=1).
Test
AT+MJDC=? +MJDC:(range
<mjdc_mode>)
OK
The test command returns the
possible ranges of <mjdc_mode>s.
Unsolicited
Report
+MJDC:<jamming_det
ection>
Indicates the jamming state.
Table 3-126: +MJDC Parameters
<Parameter> Description Remark
<mjdc_mode> 0 - Disable jamming detection.
1 - Enable jamming detection.
<jamming_dete
ction>
0 - No jamming is detected.
1 - G24 is now under jamming.
Once the +MJDC=1 is configured, an
appropriate unsolicited message will
be sent to the DTE. Than, an update
will be sent each time a change is
detected.