NHK AM (NHKラジオ第1放送) is Japan's oldest radio station operated by the public broadcaster, NHK. Its programming output, which consists of news, current affairs, and information is broadly similar to the BBC's Radio 4 in the United Kingdom, Radio National in Australia, CBC Radio One in Canada, LRT Radijas in Lithuania and Radyo 1 in Turkey. NHK Radio 1 is available mainly on AM. The callsign is JOAK in Tokyo. It began broadcasting on July 12, 1925. During World War II, it often broadcast official announcements.

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