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Communications

vocabulary from unit 1

TermDefinition
digital series of pulses
analog continuous signal
tuner device to select the desired signal
amplifier device to boost the strength of an electrical signal
frequency modulated frequency of the carrier signal is modified to fit the original signal
amplitude modulated the height of the carrier symbol
modulation a message that is added to a carrier signal
resonance the natural frequency at which something vibrates
proof a quick copy used to find mistakes
platen a thick piece of flat wood placed on top of paper
font different styles of letters
telegraph key a metal switch that can be pressed down against a wire to complete an electrical system
telegraph receiver receives the message from the transmitter
Morse code a system of short and long electrical signals
telegram message sent by telegraph
microphone translates the sound waves to an electrical signal
fiber optics cable consisting of hundreds of glass tubes that transmit pulses of light
Created by: hummingbird1971
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