• “Clear channels” were among the first AM channels established, and they have the most powerful
signals in radio (50 kilowatts), which enables them to broadcast over an enormously wide area,
often across much of North America. A person listening in Chicago can sometimes pick up a clear
channel from Atlanta, for instance. These AM stations have long been protected from interference
within their primary and secondary service areas. The best time to listen to a clear channel is at
night, when many smaller AM stations are required to power down to reduce interference. (A
complete listing of stations is compiled at: http://www.AC6V.com/clearam.htm#USA.)
WMAQ-AM, one of the most famous clear-channel stations, was Chicago’s oldest radio station and
home to many icons of early radio. It is where Amos ’n’ Andy premiered in 1928. In July 2000,
WMAQ-AM signed off for the last time, a victim of the CBS and Viacom merger and FCC
regulations. It was replaced by an all-sports station. Before its demise, however, WMAQ-AM had
already gone through numerous format changes, from easy listening to country and finally all news.
• Radio was an intimate medium that took some getting used to. In the early 1930s, some actors were
so scared of microphones that engineers devised lamp-shade covers to make them appear more
innocuous. Actors stood very close to one another around the microphone when rehearsing and
performing, and they often found their bodies pressing close to those of other actors. Consequently,
breath fresheners became standard fare for radio performers between the 1930s and 1950s. According
to radio historian Robert L. Mott, the breath freshener Sen-Sen was effective for disguising boozy
breath during rehearsals and performances. It became so popular that “most actors were afraid to use
it for fear of being guilty by association.” (See Mott, 1993, p. 3.) Actors usually received $6 an hour
for rehearsals and $15 for a broadcast that was usually fifteen minutes long. Some actors worked on
as many as four soap operas a day.
• Being a sound-effect artist was often nerve-wracking and uncomfortable, with artists often standing in
2 feet of water to get the kinds of splashing sounds the director wanted. The biggest fears were
dropping anything accidentally, having an equipment failure, or making some other kind of noticeable
mistake. One artist, desperate not to let a sledgehammer hit the floor, put his foot in its path and broke
his foot. Here are some examples of how sound-effect artists colored a radio show with sound:
• A bowl of cooked spaghetti squeezed rhythmically = a giant worm devouring people in
their sleep
• Glass wind chimes tinkling = sunlight
• Two moist rubber gloves twisted and stretched = a human body turned inside out
• A hopper that drained bird seed onto a piece of stretched waxed paper = rain on a roof
• A cork dipped in turpentine and rubbed against a bottle = a squealing rat
• A box of cornstarch squeezed in a rhythmic fashion = footsteps in snow
• Cotton balls ripped close to the microphone = footsteps in snow
• Water from a seltzer bottle squirted into a pail = milking a cow
• Audiotape crinkled close to the microphone = fire crackling (audiotape was developed in
Germany in the 1940s and was introduced to the United States in 1945)
• Discuss the success and impact of radio drama in American culture during the Golden Age of Radio.
An early concern about broadcasting revolved around violence in radio’s popular horror and crime
stories. Some children were said to have been mimicking violent acts after hearing about them on the
radio. A few advertisers pulled back, and the radio industry altered radio scripts with criminal themes
(the FCC called these programs Goosepimple Kid Shows) in an act of self-censorship that would
repeat itself with other mass media in decades to follow. (For more information, see McChesney,
1993.)
III. Radio Reinvents Itself
• The history of transformations of the radio industry provide an excellent opportunity to discuss how
older media forms adapt when challenged by newer media: radio and sound recording in the 1920s;
radio and television in the 1950s; radio and digital forms of radio in the 21st century (satellite, HD,
streaming, podcasts, etc.).