Researchers say shielding AM radio waves from electric motor interference costs $50-$70 per vehicle. The debate over AM radio in vehicles grows heated as automakers aim to replace it, while government officials stress its usefulness during emergencies.
Research suggests keeping it would cost the industry $3.8 billion in the next seven years. The alarming finding is from the Center for Automotive Research (CAR), which has ties with GM and Ford. Automakers, including GM and Ford, attribute this issue to electrified vehicles. Some automakers like Tesla, Rivian, VW, Volvo, Polestar, BMW, and Ford initially stopped offering AM radio due to electromagnetic interference from their motors affecting sound quality.
(Note: Ford later changed its decision.) Concern among officials over AM radio's importance during emergencies and in rural areas has led senators to propose a bill mandating AM receivers in new vehicles.
AM radio reception in EVs is possible but costly. Improving reception involves shielding, EMI filters, and noise cancellation. The CAR predicts a cost of $3.8 billion between 2023 and 2030. While alarming, the figure would be spread industry-wide. The center estimated the cost per vehicle could be up to $70, but sources suggest the equipment for AM reception protection could be as low as $50.
The Center for Automotive Research states that the cost of addressing AM band interference in EVs is low because mitigation measures are already in place for other electronic systems. However, the development of detailed engineering specifications for these parts will require additional time, work, and expense.
It's also noted that added weight of components may be costly, but a supplier stated that a filter would only add 2.2 pounds (1 kg) to a vehicle. However, the center argues that making analog AM receivers mandatory is a "significant burden" on automakers. The senate will determine if this burden is unfair. Please shorten this text.
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