LAUNCHXL-CC1352P: 433MHz Radio Interference

Pengcheng Liu

Part Number: LAUNCHXL-CC1352P

Hi Ti expert,

We have a strange issue.

We are running an 868Mhz application on the CC1352p1 LaunchPad, but whenever a 433Mhz radio (broadcast interphone) closes to the LaunchPad (within about 2 meters range), there is a high chance that the serial port stops working.

Do you ever have a similar problem?

Thank you very much,

Kind regards,

over 2 years ago

+1 RGW over 2 years ago

TI__Mastermind 29570 points

Hi,

Seems strange that the 433 MHz radio interferes with the 868 MHz radio.

Do you see the same problem if you have a cable between the LaunchPads ? i.e. is the interference going through the antenna or is it the complete board (LP) that is being disturbed ?

What is the power level of the 433 MHz radio ? Measure this with max hold on a SA ?

Regards,

Richard

0 Pengcheng Liu over 2 years ago in reply to RGW

Intellectual 590 points

Hi Richard,

Thank you very much for your reply.

Please allow me few days to evaluate this issue carefully and I will be back to you then.

Kind regards,

Pengcheng.

0 Pengcheng Liu over 2 years ago in reply to RGW

Intellectual 590 points

I can confirm that it is not a hardware issue.

Thank you very much, Richard

Pengcheng.

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LAUNCHXL-CC1352P: 433MHz Radio Interference