Led radio interference solution. Leo says not all leds emit rf interference but some do. Most marine radio equipment has adequate filtering built in to eliminate conducted interference. Eliminates cbamfmvhf static e log system error on board. 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.
Led panels are more of a challenge but if you took a portable radio to a lighting shop with a display you might be able to find a solution. Dont use bandaid ferrite core pseudo filters. First to ensure that the interference is caused by the led light bulbs consider turning off or taking out the newly acquired led bulbs and do a test run of the electronic device. Dont buy cheap made in china which means western corporations exploiting foreign labour with cheap materials leds.
Radiated interference is the most serious problem normally encountered on vessels. If the disturbance in terms of picture or sound is gone then the reason is most likely evident specifically due to rf radio frequency interference or emf electromagnetic frequency. There are several possible ways to fix these radio interference issues. Cyron motor abft100 h4 digital filter removes most all staticradio emi interference and canbus errors caused by led headlights.
High frequency switching drivers using inductors are more efficient but can cause interference if poorly designed. In fact every electronic device ever made creates rfi but there are different types of this electrical interference. Led lights convert ac to dc at many times a second causing inductance and. Its usually dab rather than fm interference that is the problem.
The radio antenna system and receiver have been designed for reception of very weak signals often as low as 2 or 3 micro volts millionth of a volt. Jc upgraded all his lights in his home with leds and now hes having issues with radio reception on his am transistor radio. Sometimes when installing an led conversion kit or an hid conversion kit in your vehicle the result can be better brighter light but also a side effect of am or fm radio interference. And in theory all of them shouldnt because its illegal.
Also both of these products create rfi radio frequency interference. This only happens when the led lights are switched on but it can be annoying especially if you enjoy listening to am radio.