UMTS/HSPA Module Series
WCDMA Jamming Detection Application Note
WCDMA_Jamming_Detection_Application_Note Confidential / Released 10 / 13
4
Example
4.1. Report Jamming via URC
AT+QJDR=1
//Enable Jamming Detection.
OK
AT+QJDCFG="URC",1
//Enable URC output.
OK
In normal condition:
AT+QJDR?
//Query the current jamming status.
+QJDR: NOJAMMING
//In normal condition, no jamming is detected.
OK
In a jamming environment, please refer to Chapter 2.2.
+QJDR: JAMMED
//The URC will be reported automatically. Jamming has been detected.
AT+QJDR?
//Query the current jamming status.
+QJDR: JAMMED
//In a jamming environment, jamming is detected.
OK
If jammer is removed:
+QJDR: NO JAMMING
//The URC is reported automatically. No jamming is detected.
AT+QJDR?
//Query the current jamming status.
+QJDR: NOJAMMING
//No jamming is detected.
OK
4.2. Report Jamming via URC Periodically
AT+QJDR=1
//Enable Jamming Detection.
OK
AT+QJDCFG="URC",1
//Enable URC output
OK
AT+QJDCFG=
“period”,5
//Set the
<period> as 5. URC will be reported every 5 seconds.
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