Signal waves and carrier waves? Watch

wagon23
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#1
Report Thread starter 4 months ago
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Are signal waves simply sound waves and carrier waves just this sound wave converted to a radio wave that enables it to be broadcasted?
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Joinedup
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I guess you're talking about AM/FM

the carrier wave is a radio wave - if there's no signal it's a radio wave of constant amplitude and frequency
if there is a signal the radio wave is modulated by the signal

in AM the amplitude of the radio wave is modulated by the signal
in FM the frequency of the radio wave is modulated by the signal

There's a diagram of the effect of AM and FM on the carrier wave here
http://www.bbc.co.uk/schools/gcsebit...tionrev3.shtml
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