What is 4G? Why is it being introduced?
Fourth generation mobile services, known as 4G, are launching across the UK. 4G gives people faster access to the internet on smartphones and tablets. However, there is a small chance some 4G mobile signals may cause interference to TV received via an aerial, known as Freeview. This is because 4G mobile signals sit next to the frequencies used by Freeview. TVs and set-top boxes that receive Freeview can fail to block the 4G mobile signal, causing TVs to lose sound, channels and pictures to go blocky, freeze or say No Signal.
The first 4G at 800 MHz services launched on 29 August 2013. For more information on when they will be available where you are, visit coverage checkers on the operators’ websites.
Our video explains what’s happening.
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Or select from one of the following categories;
- I am missing some Freeview channels. Is this caused by 4G?
- How will I know if my TV is affected?
- What should I do if I think my TV is being affected?
- What will happen next?
- How do I arrange for an at800 engineer to visit?
- Can I fit the filter myself rather than have an engineer visit?
- If my TV is affected, how quickly will you resolve the issue for me?
- Is it true that millions of homes might be impacted?
- I live in London, will I be affected?
- How will at800 let me know if my Freeview may be affected?
- My neighbour has received a postcard and I have not. Why?
- Will 4G affect TV received through satellite or cable?
- Will TVs in caravans, campers and narrowboats be affected?
- What are filters and how are they fitted?
- How can I get a filter?
- What if I have a set-top box?
- What if I have an indoor TV aerial; can I still attach a filter?
- What if I have more than one TV running Freeview?
- What if the filter doesn’t resolve the interference?
- Can I get more filters if needed?
- I am moving house, do I need to take my filter to my new home?
Our online diagnostic tool will help you identify what might be causing disruption to your Freeview service.