Independent radio in the early 1950's

Military training film on a New York radio station, WMCA, owned by the Nathan Straus family, showing its ownership, management and activities. Good view of radio in the era when most stations were locally owned and operated....

FILM is Archived Here | Jim Hawkins Site

WMCA, 570 AM, is a radio station in New York City, most known for its "Good Guys" Top 40 era in the 1960s. It is currently owned by Salem Communications and plays a Christian radio format. Its three-tower transmitter site (easily visible from the northbound New Jersey Turnpike) is located on the Hackensack River, in Kearny, New Jersey.

Wikipedia