U.S. Census Bureau Daily Feature for March 30

U.S. Census Bureau Daily Feature for March 30

WASHINGTON, March 30, 2015 /PRNewswire-USNewswire/ -- Following is the daily "Profile America" feature from the U.S. Census Bureau:

http://photos.prnewswire.com/prnvar/20110428/DC91889LOGO

FM RADIO DEBUTS

Profile America -- Monday, March 30(th). FM radio is 74 years old. In March 1941, the first commercial FM station went on the air -- W47NV in Nashville, Tennessee. FM --standing for frequency modulation -- was first proposed in a scientific paper written by Edwin Armstrong in 1922. By 1934, he was demonstrating to network officials how FM was unaffected by static, like all the radio stations then on the air, which used AM, or amplitude modulation. World War II interrupted the advance of FM broadcasting, which surged in the 1960s when it began broadcasting in stereo. Today, some 90,000 people work in radio's 15,432 stations, of which over 10,700 broadcast on the FM band. Profile America is in its 18th year as a public service of the U.S. Census Bureau.

Sources: Kane's Famous First Facts, 6299
First station: http://www.dmwmedia.com/news/2012/03/05/happy-71st-birthday-to-fm-radio
Edwin Armstrong: http://www.columbia.edu/cu/alumni/Magazine/Spring2002/Armstrong.html
Radio employment/NAICS 515112: http://factfinder.census.gov/faces/tableservices/jsf/pages/productview.xhtml?pid=BP_2012_00A1&prodType=table
Radio stations: http://www.fcc.gov/document/broadcast-station-totals-december-31-2014

Profile America is produced by the Center for New Media and Promotions of the U.S. Census Bureau. These daily features are available as produced segments, ready to air, on the Internet at http://www.census.gov (look for "Multimedia Gallery" by the "Newsroom" button).

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SOURCE U.S. Census Bureau

Photo:http://photos.prnewswire.com/prnh/20110428/DC91889LOGO
http://photoarchive.ap.org/
U.S. Census Bureau

CONTACT: Rick Reed of the U.S. Census Bureau, +1-301-763-2812, fax: +1-301-763-3762, richard.thomas.reed-at-census.gov

Web Site: http://www.census.gov


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Profile: intent