AM broadcasting is radio broadcasting using amplitude modulation (AM) transmissions. It was the first method developed for making audio radio transmissions, and is still used worldwide, primarily for medium wave (also known as "AM band") transmissions, but also on the longwave and shortwave radio bands.

3 天之前 · Washington: Earlier today, Representatives Gus Bilirakis (R-FL), Chairman of the Commerce, Manufacturing and Trade Subcommittee, and Frank Pallone, Jr. (D-NJ), Ranking Member of the Energy and Commerce Committee, introduced the AM Radio for Every Vehicle Act of 2025. This bipartisan and bicameral legislation recognizes that AM radio is an essential communication tool during emergencies, and ...

2023年5月25日 · AM radio, also known as Amplitude Modulation, is a type of radio broadcasting that uses amplitude modulation to transmit audio signals. AM radio signals are transmitted through the airwaves and can travel long distances, making it …

2024年12月31日 · FM broadcasting provides several advantages over AM, including higher sound quality, reduced susceptibility to noise and interference, and a wider frequency range. This results in a clearer and more dynamic listening experience, particularly for music.

AM is short for amplitude modulation, which refers to the means of encoding the audio signal on the carrier frequency. In many countries, AM radio stations are known as "mediumwave" stations. They are also sometimes referred to as "standard broadcast stations" because AM was the first form used to transmit broadcast radio signals to the public.

3 天之前 · Washington, D.C. – Congressman Frank Pallone, Jr. (D-NJ), Ranking Member of the Energy and Commerce Committee, today reintroduced the AM Radio for Every Vehicle Act of 2025, legislation to ensure AM radio remains accessible in all new motor vehicles.The bill directs the Department of Transportation to issue a rule that requires automakers to include AM broadcast radio as standard equipment ...

2025年1月29日 · “As we witness more tragic climate change-induced disasters like the wildfires in Los Angeles, broadcast AM radio continues to be a critical tool for communication. AM radio is a lifeline for people across the country for news, sports, and especially emergency information,” said Senator Markey. “Tens of millions of listeners across the ...

2025年1月29日 · The Broadcast Resource Hub, powered by the National Association of Broadcasters and the NAB Leadership Foundation is a comprehensive one-stop-shop for resources, tools and information on the most relevant issues impacting local radio and television stations. ... AM radio has long been a trusted source of emergency information, providing real ...

2023年10月19日 · The main difference between AM and FM radio waves is that AM waves are amplitude modulated while FM waves are frequency modulated. AM waves are older and have a larger range, while FM waves have a smaller range but provide better sound quality.

2021年1月28日 · AM stands for Amplitude Modulation, and FM stands for Frequency Modulation. Both AM and FM radio programs are transmitted over the air via radio waves, which are part of a range of electromagnetic waves that include gamma rays, x-rays, ultraviolet rays, visible light, infrared, and microwave.