Mobile and Messaging - Radio & WiFi Fundamentals Flashcards

1
Q

What are radio signals made of?

A

Waves of energy

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2
Q

What is the definition of frequency?

A

How often waves appear

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3
Q

What is the definition of wavelength?

A

The distance a radio signal will travel in one cycle (measured peak-to-peak)

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4
Q

What is the definition of amplitude?

A

The height and depth of the waves in relation to the DC value

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5
Q

Which type of signal propagates further; Bluetooth or WiFi?

A

WiFi

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6
Q

What is the definition of phase?

A

The relationship between multiple signals

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7
Q

What is constructive interference?

A

When two or more signals are in phase

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8
Q

What is destructive interference?

A

When two or more signals are out of phase

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9
Q

What is propagation?

A

The ability for a signal to travel

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10
Q

Name four ways a signal can be effected by the environment it’s traveling though.

A

Absorption, reflection, refraction, and diffraction.

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11
Q

What is the definition of modulation?

A

The modification of a radio wave to contain info

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