AM

えーえむ

noun

AM, AM radio

media technology

1. AM, AM radio

Amplitude modulation radio broadcasting, which has longer range than FM but lower audio quality.

AM放送(ほうそう)を聴(き)く。

I listen to AM radio.

夜(よる)はAMの電波(でんぱ)がよく届(とど)く。

AM signals travel well at night.

AMラジオで野球(やきゅう)中継(ちゅうけい)を聴(き)いた。

I listened to the baseball broadcast on AM radio.

AM stands for amplitude modulation (振幅(しんぷく)変調(へんちょう)). It has longer transmission range than FM, especially at night.

Common collocations

AM放送(ほうそう): AM broadcasting
AM局(きょく): AM station
AMラジオ: AM radio
AM番組(ばんぐみ): AM program

Cultural note

AM radio is popular for news, talk shows, and sports broadcasts. Many Japanese AM stations simulcast on FM (ワイドFM) for better sound quality in urban areas.

Note: AM/PM (午前(ごぜん)/午後(ごご)) time notation uses the same letters but is pronounced differently.

Related Words

Compare: FM (frequency modulation)

general

Added 2026.1.29 11:44 · Revised 2026.9.2 13:01

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