Interference to radiocommunications apparatus

28 January 2021

Ofcom does not guarantee interference-free spectrum because there are many possible causes for interference beyond our control, such as natural atmospheric conditions.

Anyone using electrical apparatus is responsible for making sure it does not cause harmful interference to others. If this happens, we may require the user to rectify the situation. Find out about our approach to spectrum enforcement.

Read about the causes of interference, and how to report interference, below.

Causes of interference

Harmful interference

Interference to radio communications is considered harmful if:

  • it creates danger, or risks of danger, in relation to the functioning of any service provided by means of wireless telegraphy for the purposes of navigation or otherwise for safety purposes
  • it degrades, obstructs or repeatedly interrupts anything which is being broadcast or otherwise transmitted by means of wireless telegraphy and in accordance with a wireless telegraphy licence, or a grant of recognised spectrum access or otherwise lawfully.

It is unlikely that Ofcom would investigate a report of interference that is not regarded as ‘harmful’. It's not our policy, and we don’t have powers to do this effectively.

Report interference

Before reporting interference to us, you should:

  • log all incidents for at least a week with the time, date and station or apparatus affected;
  • establish that the source of harmful interference is not within your control (e.g. within your own property); and
  • ensure the affected station or apparatus is functioning correctly.

You can fill out online reporting forms about interference to:

You can also contact us for advice and assistance: