Quiz 1 NMK41003

Below are the reasons satellite is used for communications EXCEPT

• low maintenance cost for long distance services

• can serve for other applications, such as remote sensing, meteorology, navigation, rescue

• capable to cater several channels simultaneously via a narrowband spectrum

• transmission is accessible regardless geographical locations

Which condition is TRUE for an elliptical orbit?

• 0 < e < 1

• e = 0

• e = 1

• None of the above

The reason the satellite orbit deploys the shape of an ellipse or circle is

• the most efficient geometry

• the satellite position can be easily specified

• the satellite consumes less fuel

• the satellite has better coverage on earth

Satellite moves faster at location near to sun, and slow down when far from sun.

• TRUE

• FALSE

Multiple users share the same frequency, but each user is assigned a unique time slot. Which multiple access technique is referred to?

• FDMA

• SDMA

• TDMA

• CDMA

The time period taken by the satellite to complete one orbit is called

• synodic period

• sidereal period

• lapsed time

• time period

The angle of inclination for a satellite following an equatorial orbit is

• 90°

• 0°

• 45°

• 180°

Starlink satellite used

• MIMO Antenna

• Phased Array Antenna

• Circular-polarized antenna

• Microstrip patch antenna

What will happen to the number of traffic burst, n_t if the frame efficiency, η_F is reduced?

• Increase

• Decrease

• Nothing will change

Select ONE (1) band from the followings that cannot be used for satellite communications.

• X

• MF

• K

• C