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AM radio law opposed by tech and auto industries is close to passing | Ars Technica (arstechnica.com)
submitted 6 months ago by tal@lemmy.today to c/news@lemmy.world
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A controversial bill that would require all new cars to be fitted with AM radios looks set to become a law in the near future. Yesterday, Senator Edward Markey (D-Mass) revealed that the "AM Radio for Every Vehicle Act" now has the support of 60 US Senators, as well as 246 co-sponsors in the House of Representatives, making its passage an almost sure thing. Should that happen, the National Highway Traffic Safety Administration would be required to ensure that all new cars sold in the US had AM radios at no extra cost.

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[-] tal@lemmy.today 26 points 6 months ago

You can improvise an AM radio receiver with stuff you have lying around your house.

Not only that, it can be powered by the radio signal itself.

https://en.wikipedia.org/wiki/Crystal_radio

A crystal radio receiver, also called a crystal set, is a simple radio receiver, popular in the early days of radio. It uses only the power of the received radio signal to produce sound, needing no external power. It is named for its most important component, a crystal detector, originally made from a piece of crystalline mineral such as galena.[1] This component is now called a diode.

Crystal radios are the simplest type of radio receiver[2] and can be made with a few inexpensive parts, such as a wire for an antenna, a coil of wire, a capacitor, a crystal detector, and earphones (because a crystal set has insufficient power for a loudspeaker).[3] However they are passive receivers, while other radios use an amplifier powered by current from a battery or wall outlet to make the radio signal louder. Thus, crystal sets produce rather weak sound and must be listened to with sensitive earphones, and can receive stations only within a limited range of the transmitter.[4]

[-] captain_aggravated@sh.itjust.works 4 points 6 months ago

It should be noted though that you'll need a fairly nearby radio station that is transmitting with a whackton of power.

this post was submitted on 02 May 2024
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