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Data Transmission

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