UMTS/HSPA Module Series
WCDMA Jamming Detection Application Note
WCDMA_Jamming_Detection_Application_Note Confidential / Released 11 / 13
OK
In a jamming environment, please refer to Chapter 2.2.
+QJDR: JAMMED
//The URC will be reported automatically every 5 seconds. Jamming has
been detected.
…
+QJDR: JAMMED
//The URC will be reported automatically every 5 seconds. Jamming has
been detected.
….
If jammer is removed:
+QJDR: NOJAMMING
//The URC is reported automatically. No jamming is detected.
AT+QJDCFG=
“period”,0
//Disable reporting URC periodically.
OK
4.3. Enable and Disable Jamming Detection
AT+QJDR=?
//Test mode.
+QJDR: (0,1)
OK
AT+QJDR?
//Query the current jamming status.
+QJDR: NOJAMMING
//No jamming detected.
OK
AT+QJDR=1
//Enable Jamming Detection function.
OK
//Turn on jammer.
+QJDR: JAMMED
//The jammer has been detected and then jamming is reported.
//Turn off jammer.
+QJDR: NOJAMMING
//Report that the jammer have been removed.
AT+QJDR=0
//Disable Jamming Detection function.
OK
4.4. Configure Jamming Detection
AT+QJDCFG=?
//Test command
+QJDCFG: "urc",(0,1)
Quectel
Confidential
