How will I know if my TV is affected?
TVs and set-top boxes that receive Freeview can fail to block 4G mobile signals. This can cause TVs to lose sound, channels and pictures to go blocky and freeze or say ‘no signal’. These symptoms might be experienced some or all of the time. If you have received an at800 postcard, have had good TV reception in the past but experience new interference to your Freeview service, please try our online diagnostic tool, call us or fill out an enquiry form on our Contact us page.
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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.