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Related Flashcards
Cards In This Set
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The path on which signal types travel is called _____.
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The correct answer was: signal flow |
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The question was:
Which of the following differentiates cable from wire? |
The correct answer was: contains multiple conductors
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The question was:
What type of conductor is relatively inflexible but can withstand more strain? |
The correct answer was: solid conductor |
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The question was:
Wire insulation is typically made of materials such as _____. |
The correct answer was: PVC
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The question was:
_____ shielding uses a thin sheet of aluminum. |
The correct answer was: Foil
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The question was: Polyethylene jackets are only for outdoor use because they are _____.
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The correct answer was:
easily flammable |
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The question was:
Twisted pair cable using balanced circuitry can help in _____. |
The correct answer was: rejecting interference
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The question was:
An example of a connector that mates by contact pressure is a(n) _____. |
The correct answer was: RCA
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The question was: The property of a circuit that opposes change in current is called _____.
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The correct answer was: inductance
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When transmitted over a certain distance, the signal will _____.
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The correct answer was: decrease in strength
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The question was:
An AV rack is a housing unit that _____ electronic equipment. |
The correct answer was: protects and organizes
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The question was: Switchers _____.
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The correct answer was: allow the user to select one input from a number of inputs
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The question was:
A distribution amplifier _____. |
The correct answer was: accepts a signal on its input and distributes the signal to two or more outputs
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? are alternating current (AC) signals in the form of electrons or photons (wireless), and are classified as electromagnetic energy. These signals, or range of radio frequencies (RF), make up a small section of the electromagnetic spectrum.
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Radio waves
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In any communications system that uses RF signals, at least one transmitting device and one receiving device are required. The information must be modulated into an RF carrier, whether it is analog or digital. The RF carrier is the “envelope” that contains the information – demodulating the RF carrier extracts the information from the envelope.
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Trans & reciev
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