4G rollout and Freeview interference
If you’re experiencing interference to your Freeview TV service, this could be caused by the 800MHz frequencies used by some 4G services. Use the options below to find out if you might be affected, and how we can help.
Find out what happens when 4G mobile services at 800MHz are activated
Have you had a postcard from at800?
If you’re unsure, select NOT SURE to enter your postcode and find out whether we have sent postcards to your area
Read common concerns about 4G related Freeview interference
Who is at800?
at800 was set up under Government direction and we are responsible for ensuring viewers who rely on Freeview for TV continue to receive it when 4G services launch across the country. Find out more about at800 and its governance.