berry34
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In a radio, pulse modulation refers to encoding a wave with information by:

a) adjusting the height of the waves
b) adjusting how many waves are produced per second
c) turning the wave on and off
d) changing the medium in which the waves travel

Respuesta :

AL2006

In radio communication, "pulse modulation" refers to encoding a wave with information by turning the wave on and off for various lengths of time. (c)

(Morse code is an example of this modulation method.)

Mberryhill2
C because that’s how they would communicate and send info ...through turning them on and off
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