Top Tips

Problems can often be equipment-related. Check out our top tips before going further.

Welcome to the Radio & Television Investigation Service Website

The Radio and Television Investigation Service has been set up to help viewers and listeners investigate whether problems with receiving domestic radio and television services are due to interference from an external source, poor reception or problems with their receiving equipment. 


Investigation of problems due to interference are undertaken by the regulator Ofcom but they will not investigate unless some set criteria have been met. The Radio and Television Investigation Service will help you gather the information required and will refer appropriate cases to Ofcom for you.

The information on this website is designed to help you to:-

• decide whether the problem is reception or interference 
• identify a possible source of interference
• work towards resolving the issue by providing guidance
• find sources of further help if needed

To make the most of our site follow our step by step guide in Getting Started 

Transmitter Checker

Enter postcode and platform below to check for faults with your local transmitter (Format: AB12 2AA)

For information on how we use your postcode (and any other personal data you may provide to us), check the 'How we use your personal information' section on our 'About Us' page.

Problem Assistant

Get started with diagnosing your problem with our self-help tool.

Launch the tool by clicking here