Radio signals are difficult to contain, both in space and in frequency. There is always the potential for transmissions from one wireless system to cause interference to other signals on neighbouring frequencies or at nearby locations. Broadcasters are rightly concerned to ensure that the introduction of mobile services within the digital dividend spectrum in the UHF band does not interfere with television reception, and mobile operators are equally concerned to ensure that this does not happen.
Download “Managing Radio Interference: Coexistence between broadcasting and mobile in the UHF TV band” – English (PDF)