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wireless communication

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  • A method of broadcasting signals by changing the amplitude of a wave
    AM
  • AM waves usually produce better sound quality than FM waves
    FALSE
  • works by dividing regions into many small a cells, or geographical areas
    cellular system
  • what wave property is changed when radio signals are broadcast
    amplitude
  • are assigned for people who operate radios as a hobby.
    Amateur radio
  • Is a region of charged particles high in the atmosphere
    ionosphere
  • Cell phones transmit and receive signals using
    microwaves
  • AM radio waves have relatively long wavelengths and low frequencies and energy.
    true
  • is a method of broadcasting signals by changing the frequency of a wave.
    FM
  • The amplitude of an FM wave is constant
    TRUE
  • The frequency of an AM wave is always changing
    false
  • FM waves have higher frequencies and more energy than AM waves.
    true
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