AM radio in the car

Listening to Medium Wave (MW) or Long Wave (LW) in a car can sometimes be difficult due to electrical interference, driving through tunnels, or from obstructions, like bridges. If you can鈥檛 listen by another means, like FM, DAB or 麻豆约拍 Sounds, you may find the guidance on this page helpful. 听

Interference from car electrical systems听

Interference to MW or LW reception in a car can be caused by many electrical systems within your car. From the ignition system to windscreen wipers or indicators. It usually sounds like whining or crackling sound, depending on the cause. Turning each element on and off to see if it goes away is one method to determine the cause but you may need to speak to an auto specialist 听

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Interference from other electrical equipment

Other causes of interference to MW or LW radio in the car can include mobile phone chargers and dashcams. Check that connections are secure and cables are not damaged and see if the interference goes away of you move the equipment to other areas in the car. 听听

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On the move

MW/LW radio can also be affected by structures such as bridges and tunnels.听

In simplistic terms, the size of the MW/LW wavelength is bigger than the radius of the entrance and struggles to reach into the tunnel or under the bridge. FM wavelengths are smaller so can usually reach in further by bouncing along the tunnel walls before they lose too much power 听

There鈥檚 nothing that can be done to improve this until you drive out from the tunnel or away from the bridge.听

car radio