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AM

AM

4 6.3
A way of sending sound on radio by changing the strength of the signal
  • noun
  • /eɪ ɛm/
  • Specialized
translation icon : modulación de amplitud
  • She tuned in to her favorite talk show on AM each morning.

Examples

  • Hispanic Talk Radio: Conservatives have a stronghold on AM Talk Radio, but Rush and Hannity don't speak Spanish.

    Blog text (12)
  • And you're listening to KAKC AM 970 radio Tulsa.

  • A Sanyo AM-FM Radiocorder was used to play the tape.

    Academic text (1992)
  • "Brown has worked in radio since 1972, managing stations in Oregon, Washington, and Nevada, including KGW-AM, Portland."

    Blog text (16)
  • Lucia is the host of Art and Love on LA talk radio station KFI AM and says there's nothing wrong with what Beige and Michelle are doing.

  • Trendle had been a cinema owner/manager for many years before purchasing WXYZ-AM, and he knew what kind of characters boys liked (Bickel; also see Osgood).

    Academic text (2013)
  • KTRX AM 440, Des Moines.

  • CCC, AM 1290, FM 107.

  • Many listeners prefer AM radio for its clearer sound quality.

  • The new AM broadcast allows for a wider range of frequencies.

Synonyms

amplitude modulation
vsAM
  • Specialized
1 5.3

A way of sending radio signals by changing a wave's height

focuses on modulating a radio signal rather than on broadcasting use

Surface Forms

AM singular
AMs plural

Etymology

AM stands for amplitude modulation, with amplitude meaning the 'height' or strength of a radio wave, so AM radio sends sound by changing that strength and often has more noise from electrical interference.