Wireless Communication SBA Review

Cell phones transmit and receive

signals using

• radio waves

• ultraviolet waves

• microwaves

• gamma rays

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Radio waves carry information from

• antenna to antenna

• amplitude to frequency

• AM to FM

• wavelength to longitude

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With a satellite phone you can call anywhere in the

• county

• state

• country

• world

Am radio waves have

• longer wavelengths than FM

• Shorter wavelengths than FM

• Higher frequency than FM

• Shorter broadcast ranges than FM

Tags

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AM radio waves have a

• Shorter broadcast range than FM waves

• Longer broadcast range than FM waves

• Better quality sound than FM waves

• More music options

Tags

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Radio stations, police radios, and amateur radios don't interfere because they have different

• volumes

• music options

• frequencies

• amplitudes

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Which of the following is not normally used to complete a cell phone call

• Cell phone sends microwaves to tower

• Tower sends signals to satellite

• Tower sends signal to hub

• Hub sends signal to tower

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A GPS receiver needs to connect to how many satellites to give exact position and altitude?

• 1

• 2

• 3

• 4

What is orbiting Earth that receive radio, television, and telephone signals and then transmit them around the world?

• GPS
• Communication Satellite 
• Transmitter
• Cell Phone Tower

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How do FM waves travel?

• As changes in the frequency of the wave
• As changes in the amplitude of the wave
• As changes in the wavelength of the wave
• As changes in the resonance of the wave

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