SIM800 datasheet(191/380 Pages) SIMCOM

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SIM800 Series_AT Command Manual_V1.09

191

2015-08-03

0 Report jamming status via URC every 3000ms. (only

when <mode> is set to “1” or “3”)

1 Report jamming status via URC when jamming status

changed.(only when <mode> is set to “1” or “3”)

Parameter

Saving

Mode

NO_SAVE

Max Response Time

Reference

Note



When you query jamming detection status after enable jamming

detection mode, you will get the URC of the format below:

+SJDR:1,<mode>,<var>,<display>,<result>

<result>=0, means no jamming.

<result>=1, means jamming is detected.

<result>=2, means industrial interference is detected.



“+SJDR: INTERFERENCE DETECTED” indicates industrial

interference which signifies unintentional radio link disturbances by

strong industrial radio sources.



Jamming detection PIN is designed to indicate jamming by

outputting different level. When jamming is detected, the PIN will

output a high level, otherwise, it will output a low level.



Jamming detection PIN is different among SIM800 series project,

please refer to chapter 21 for details.

6.2.59 AT+CPCMCFG

Set PCM Parameter

AT+CPCMCFG

Set PCM Parameter

Response

+CPCMCFG: (0-1)

Test Command

AT+CPCMCFG

Parameters

See Write Command

Response

+CPCMCFG: <format>

Read Command

AT+CPCMCFG

Parameters

See Write Command

Write Command

AT+CPCMCFG

=<format>

Response

ERROR

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