Why are my LED lights interfering with my FM radio?
The customer reported that when the lights were turned on it caused interference with the FM radio signal. After some research we discovered that the cause of the radio interference was due to the PWM (Pulse Width Modulation) circuit in the lights which was being picked up by the radio through the wiring.
Is there a problem with LED light bulbs?
There are other accounts of LED bulbs affecting radios, with AVForums also collecting stories . Nick Tooley shared his experience: ‘I had the same problems with LED bulbs wiping out DAB reception and tried several types of bulbs, but to no avail.’ And it seems that the issue may not just be limited to digital radios – TVs may also be affected.
Can you use internet radio with LED light bulbs?
If the interference is still present, you can resort to using internet radio. With this, the signals emitted would not be a problem and is not a factor. You can also watch live streams available by your favorite station. 1. Which kind of LED light bulbs are known to transmit radio interference?
Why is my car radio light bulb not working?
When you consult the maintenance to fix your car radio and find out that nothing is wrong with it, disconnect your lights and see if the quality of your radio changes. If it does, then it may be because of your light bulb. To address this, here is the following information regarding its connection and how can you stop it.
Why are my LED lights interfering with my Radio?
JC upgraded all his lights in his home with LEDs and now he’s having issues with radio reception on his AM transistor radio. Leo says not all LEDs emit RF interference, but some do. And in theory, all of them shouldn’t because it’s illegal.
Is it illegal for LED bulbs to emit RF interference?
Leo says not all LEDs emit RF interference, but some do. And in theory, all of them shouldn’t because it’s illegal. But that doesn’t change the fact that it happens, mostly in cheaper varieties. It may also be that since JC changed all of his bulbs to them, it could be a cumulative effect.
How to troubleshoot poor or no AM or FM radio reception?
If you have an amplifier connected, disconnect the amplifier power. If the AM reception now improves, the amplifier is the problem. There is not a fix for this other than lowering the GAIN feature on the amplifier, if applicable. Try resetting the car stereo. There could also be a poor ground connection.
How are LEDs used to control radio frequency?
However, LEDs are often driven with pulses – the width of the pulse compared with the period of the pulse train yields a method of brightness control. The pulses will contain a lot of harmonics which can interfere with radio.