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.

The American Broadcasting Company (ABC) is an American commercial broadcast television and radio network that serves as the flagship property of the Disney Entertainment division of the Walt Disney Company.

AM broadcasts occur on North American airwaves in the medium wave frequency range of 525 to 1,705 kHz (known as the "standard broadcast band"). The band was expanded in the 1990s by adding nine channels from 1,605 to 1,705 kHz.

The American Broadcast Company (ABC) is an American television network. Along with CBS , NBC and Fox , it is one of the country's four major television networks. The network is owned by The Walt Disney Company following the acquisition of the Capital Cities/ABC by …

AM broadcasting, or radio broadcasting using amplitude modulation, was the first method developed for making audio radio transmissions. It is still used worldwide, primarily for medium wave transmissions.

2016年6月7日 · On your radio receiver “AM” will probably refer to the broadcast band between about 550KHz and 1600kHz depending on where you are in the world, also known as “Medium Wave”. But AM itself is...

FM broadcasting is a method of radio broadcasting that uses frequency modulation (FM) of the radio broadcast carrier wave. Invented in 1933 by American engineer Edwin Armstrong , wide-band FM is used worldwide to transmit high-fidelity sound over broadcast radio . [ 1 ]

2025年1月22日 · American Broadcasting Company (ABC), major American television network that is a division of the Disney Company. Its headquarters are in New York City.

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 transmissions, but also on the longwave and shortwave radio bands.

2019年5月14日 · AM broadcasting is a radio broadcasting technology, which employs 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.