Basica Flashcards

1
Q

What are the bars on a cell phone represent?

A

They represent the strength of the signals from the tower measured in dB

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2
Q

What is the range of dB

A

it is from -113dB (low end or no signal) to -50dB (standing next to cell tower)

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3
Q

What is signal propagation?

A

The ability of a wireless signal to penetrate. You may lose signal in winter where there are leaves

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4
Q

What is spectrum?

A

Spectrum is a range of electromagnetic radio frequencies used to transmit sound, video and data across the country. It is used for internet, tv broadcasting and transmitting of sound between phones

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5
Q

RF energy is called ——–

A

Radio waves

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6
Q

What are the components that make up a cell site?

A
Tower
Receiver
Base unit
Antenna
Transmitters
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7
Q

A highway can be an analogy for ——-

A

spectrum

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8
Q

The surface of the road is analogous to —–in telecommunication

A

technology (2G, 3G, 4G)

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