December 18 In Radio History

In 1890...Edwin Howard Armstrong was born in New York City. He was an early radio pioneer and also the inventor of FM, Frequency Modulation. A motorcycle visit to the Armstrong Tower in Alpine, NJ, the world's first FM radio tower.

Rather than varying ("modulating") the amplitude of a radio wave to encode an audio signal, the new method varied the frequency FM enabled the transmission and reception of a wider range of audio frequencies, as well as audio free of "static", a common problem in AM radio. (Armstrong received a patent on wide-band FM on December 26, 1933.

Edwin H. Armstrong

In 1934 Armstrong began working for RCA at the request of the president of RCA, David Sarnoff. Sarnoff and Armstrong first met at a boxing match involving Jack Dempsey in 1920. At the time Sarnoff was a young executive with an interest in new technologies, including radio broadcasting. In the early 1920s Armstrong drove off with Sarnoff's secretary, Marion MacInnes, in a French sports car. Armstrong and MacInnes were married in 1923. While Sarnoff was understandably impressed with Armstrong's FM system, he also understood that it was not compatible with his own AM empire. Sarnoff came to regard FM as a threat and refused to support it any further.

From May 1934 until October 1935, Armstrong conducted the first large scale field tests of his FM radio technology from a laboratory constructed by RCA on the 85th floor of the Empire State Building. An antenna attached to the spire of the building fired radio waves at receivers about 80 miles away.  However RCA had its eye on television broadcasting, and chose not to buy the patents for the FM technology.  A June 17, 1936, presentation at FCC headquarters made headlines nationwide. He played a jazz record over conventional AM radio, then switched to an FM broadcast. "[I]f the audience of 50 engineers had shut their eyes they would have believed the jazz band was in the same room. There were no extraneous sounds," noted one reporter. He added that several engineers described the invention "as one of the most important radio developments since the first earphone crystal sets were introduced."

In 1937, Armstrong financed construction of the first FM radio station, W2XMN, a 40 kilowatt broadcaster in Alpine, New Jersey. The signal (at 42.8 MHz) could be heard clearly 100 miles away, despite the use of less power than an AM radio station.

In 1956...Phil Rizzuto contracted to be a New York Yankee radio-TV announcer. He held the position for 40-years.


In 1958...U.S. launches SCORE (Signal Communication by Orbiting Relay Equipment) to transmit radio message from President Eisenhower, effectively becoming the first communications satellite



In 1967...Radio Personality Scott Muni started at WNEW 102.7 FM.

Born Donald Allen Muñoz in Wichita, Kansas, Muni grew up in New Orleans. He joined the United States Marine Corps and began broadcasting there in 1950, reading "Dear John" letters over Radio Guam. After leaving the Corps and having considered acting as a career, he began working as a disc jockey; in 1953 he began working at WSMB in New Orleans. His mentor was Marshall Pearce. In 1955 he began broadcasting at station WAKR in Akron, Ohio, and after that worked in Kankakee, Illinois.

Muni then spent almost 50 years at stations in New York City. He became a Top 40 broadcaster at WMCA in the late 1950s, just before the start of their "Good Guys" era, and did a number of record hops in the New York area. In 1960, he moved to rival Top 40 station WABC. There he did an early evening show called "Scotland's Yard" and was the first WABC DJ to capture the attention of the teenage audience the station would become famous for. He also participated in the competition to cover The Beatles on their first visits to the United States, and thus began a long association with them.

In 1965, Muni left WABC and ran the Rolling Stone Night Club while doing occasional fill-in work for WMCA. Muni had explored some opportunities beyond radio: he had recently co-hosted a local weekly television show on WABC-TV with Bruce "Cousin Brucie" Morrow.

In 1966, Muni joined WOR-FM, one of the earliest pioneers of freeform-based progressive rock radio. The notion did not last at that station, but in 1967 Muni moved to legendary rock station WNEW-FM, where the format really took hold. Muni stayed there for three decades as the afternoon DJ and sometimes program director. Muni was described by fellow WNEW-FM DJ Dennis Elsas as "the heart and soul of the place". Under assorted management changes during the 1990s WNEW-FM lost its way, and in 1998 Muni ended up as a one-hour noontime classic rock personality at WAXQ "Q104.3", where he worked until suffering a stroke in early 2004.


In 1971...the CBS Radio network cancelled Saturday morning band concerts.


In 1993...WNCN changes to rock WAXQ in NYC



In 2010...NYC Radio/TV Personality Clay Cole died from a heart attack at age 72


In 2012…Two global audience-measurement giants announced plans to join forces as Nielsen, the dominant source of TV ratings, agreed to buy Arbitron for about $1.26 billion to expand into radio measurement.