• Corpus ID: 48672999

Frequency Modulation (fm) Tutorial

  title={Frequency Modulation (fm) Tutorial},
  author={Edwin H. Armstrong},
Lawrence Der, Ph.D. Silicon Laboratories Inc. Introduction Edwin H. Armstrong, known as one of the founding fathers of radio technology, invented the superheterodyne radio receiver in 1918 and frequency modulation (FM) in 1933 [1]. These two concepts, along with his regenerative circuit technique developed in 1912, formed the basis of radio frequency electronics as we know it today. In the United States, FM radio stations broadcast between radio frequencies of 88 MHz to 108 MHz with a channel… 

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FM Stereo and SCA Systems”, National Association of Broadcasters Engineering Handbook, 9 Edition, NAB
  • pgs
  • 1999
Communication Systems, 3 Edition, Wiley
  • 1994
Radio Broadcast Data System
Radio Broadcast Data System (RBDS) " , National Association of Broadcasters Engineering Handbook, 9 th Edition, NAB, 1999, pgs
  • Radio Broadcast Data System (RBDS) " , National Association of Broadcasters Engineering Handbook, 9 th Edition, NAB, 1999, pgs
FM Stereo and SCA Systems " , National Association of Broadcasters Engineering Handbook, 9 th Edition
  • NAB
  • 1999
Communication Systems, 3 rd Edition
  • Communication Systems, 3 rd Edition
  • 1994
Armstrong Web Site
  • Armstrong Web Site