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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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Our online diagnostic tool will help you identify what might be causing disruption to your Freeview service.