Industry & Trade
Both 4G mobile services and digital terrestrial TV (DTT) use parts of the radio spectrum – bands of frequencies – to reach us. The 800 MHz frequencies used by some 4G services are next to the frequencies used for Freeview. There is a very small chance that TVs, recorders and set-top boxes that receive Freeview may have the service blocked by these 4G signals, causing interference.
Approved filters
Most 4G interference problems can be solved by fitting a filter between the TV and the aerial. A range of filters are available for different indoor, outdoor and communal situations, with versions for each to resolve interference on UHF channels up to channel 59 or for cases where TV services reside on UHF channel 60.
All at800 approved filters carry the at800 logo. Filters that display the at800 logo have been extensively trialled by DTG Testing. More information on filter types, approved manufacturers and vendors can be found in this section.
