To solve the problems of interference due to the presence of 5G or 4G signals inside the TV system, you can use 4G filters or 5G filters that have to be installed between antenna and amplifier. It is necessary one filter for each band 5 or UHF band input of the amplifier.

To attenuate signals with a higher level than the others you can use a trap, that is a device equipped with 4 adjustments, which can be tuned all on the same frequency, to suppress a single channel, or on different frequencies, to equalize the different signals.