Anti-radio interference test

Test description:
Test object: Water dispenser touch button PCB board
Test method: Use a 5W (professional-grade) walkie-talkie (the power of ordinary walkie-talkies is only 0.5-1W), the frequency is 400MHZ-460MHZ, and the intercom is made at a distance of 1cm from the key spring .
Key test: When the two-way radio is talking, the keys are operated at the same time
Test result: The operation is completely normal, no error is triggered, and the sensitivity has not changed