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Data Transmission

Teacher: Doug Edwards
Across
Range of frequencies
(2) intensity varies smoothly over time
(2) Signals vary over time
(2) Any signal can be represented as the sum of sine waves
(2) bandwidth where most of the energy of signal is contained
Used to boost analog signals affected by attenuation
(2) discrete signal
(2) maximum strength of a signal (usually volts)
Rate a signal repeats itself
(2) data that takes on discrete values
Down
Distance sine wave travels to repeat itself
(2) analog or periodic signal
Always done as electromagnet waves
(2) component at 0 frequency
Width of spectrum
(2) signal has components of different frequencies
(2) intensity changes form one constant level to another
Signals transmitted in only one direction
More than two devices share the same medium
Used to boost digital signals
Relative position within a single period of signal (degrees)