Why are VHF, UHF, and microwave signals used in satellite communication?

A)
More bandwidth
B)
Economically viable
C)
More spectrum space
D)
Are not diffracted by the ionosphere

Correct Answer : Option (D) :   Are not diffracted by the ionosphere

Explanation : VHF, UHF, and microwave signals penetrate the ionosphere with little or no attenuation and are not refracted to earth. Lower frequencies undergo total internal refraction and get reflected back to earth.

Recently Updated in Satellite Communication Questions
What height must a satellite be placed above the surface of the earth in order for its rotation to be equal to earth's rotation?
A)
22,426.4 miles
B)
23,426.4 miles
C)
26,426.4 miles
D)
27,426.4 miles

Correct Answer :   22,426.4 miles

The owner of AsiaSat 2 is
A)
Japan Satellite System (JSAT)
B)
Singapore Satellite Commision
C)
Asia Satellite Telecommunications Company (ASTC)
D)
China Great Wall Industry Corporation

Correct Answer :   China Great Wall Industry Corporation

A mobile satellite array has usually how many elements?
A)
6
B)
12
C)
14
D)
80

Correct Answer :   14

ECE MCQ's

Power Electronics
Digital Electronics
Analog Electronics
Microprocessors
Radio Receivers
Signals and Systems
Satellite Communication
Communication Systems
Microwave Communication
Automatic Control Systems
Materials and Components
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