QuecOpen EC21E: jamming detection feature

Hi everybody,

I wonder if EC21E module has capability of jamming detection.
I didn’t found any AT command for it. If it exists, can you please provide the document?

Side question: if jam detection is available, is it supported in QuecOpen?

Thanks and regards

Hi @davdav

Could you explain the “jamming detection”,I can’t get your point.


Hello @Puck-Q,
For “jamming” I mean the capability to detect if strong interference are received such that it prevents good communication and registration to network.


Hi @davdav

Please use AT+QENG=“servingcell” to query SINR value and the AT command user guide is attached.
1_Quectel_EC2x&EG9x&EM05_QuecCell_AT_Commands_Manual_V1.0.pdf (251.2 KB)


1 Like

Thank you very much @Puck-Q.

I will check the command and document if it could help me.


Welcome @davdav ,please don’t hesitate to contact us if any questions.