Do you experience interference to radio reception from a LED light installation?
LED lighting is an energy efficient source of illumination that is becoming increasingly popular. However there have been many reports of interference to radio reception from these lights. This can affect AM, FM and DAB radio reception.
This interference occurs with low voltage (12 volt) lights such as the popular MR16 lamps (see Figure). This can happen where conventional halogen lights are replaced with LED lights as this substantially reduces the load on the transformer (normally of the electronic type, using a switch mode power supply), which in turn can then become a cause of radio interference. The interference is normally resolved by replacing the transformer with a correctly rated one.
Consumers can check their lights by tuning a radio to a weak station and checking if interference is heard when the lights are switched on. If this happens an electrician should be asked to resolve this.
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What can you do?
1. Contact your National Communications and Spectrum Regulator and ask them to investigate the issue.
EBU Technology & Innovation would like to know if your lighting is operating correctly. Help us to find out by asking your National Communications and Spectrum Regulators.
The best way to get in contact with them is to search for your National Independent Regulator online using the CEPT Members administration list: www.cept.org/cept/contact-cept/cept-administrations/
A few examples include:
UK – Ofcom
France – ANFR
Switzerland – BAKOM
Germany – BnetzA
Spain – CNMC
Italy – AGCOM
2. Check guidance on LED interference for public and installation professionals.
For more information, please see our EBU Tech Factsheet: LED interference.