How can the wireless radiation emitted by a power supply DTU meet the standards?

To ensure DTU wireless emission compliance, transmit power and filtering must be controlled. Transmit power should be adjusted according to regulations (such as SRRC) to ensure it does not exceed permissible limits. A low-pass filter should be deployed at the transmit output to suppress harmonic radiation. Proper antenna matching is essential to reduce radiation caused by mismatch. Shielded cables should be used to connect the antenna, with the shield grounded. Filter parameters should be optimized by pre-testing and scanning the radiated spectrum. In formal testing, radiated emissions should meet the limits of EN55032 Class B. Compliant design ensures product radio type approval.