Telecommunications Satellite Communications

Question 1

What does GEO stand for in satellite communications?

Accepted Answer

Geostationary Earth Orbit

Answer

Global Earth Orbit

Answer

General Equatorial Orbit

Answer

Ground-based Earth Operations

Question 2

At what approximate altitude do geostationary (GEO) satellites orbit Earth?

Accepted Answer

35,786 km

Answer

2,000 km

Answer

20,200 km

Answer

100,000 km

Question 3

Which satellite orbit provides the lowest signal latency for communications?

Accepted Answer

LEO (Low Earth Orbit)

Answer

GEO (Geostationary Earth Orbit)

Answer

MEO (Medium Earth Orbit)

Answer

HEO (Highly Elliptical Orbit)

Question 4

The C-band frequency range used in satellite communications covers approximately:

Accepted Answer

4–8 GHz

Answer

1–2 GHz

Answer

12–18 GHz

Answer

26–40 GHz

Question 5

What is the primary advantage of Ku-band over C-band for satellite communications?

Accepted Answer

Smaller receive antenna size required

Answer

Less susceptible to rain fade

Answer

Better penetration through building walls

Answer

Lower path loss in clear sky conditions

Question 6

A transponder on a communications satellite is designed to:

Accepted Answer

Receive, amplify, frequency-convert, and retransmit signals

Answer

Generate the satellite's primary electrical power

Answer

Control satellite attitude and orbital station-keeping

Answer

Manage onboard telemetry and computing functions

Question 7

The round-trip signal delay for a communication path through a GEO satellite is approximately:

Accepted Answer

240–280 milliseconds

Answer

10–20 milliseconds

Answer

50–100 milliseconds

Answer

500–600 milliseconds