wired and wireless communication

Satellite signals are refracted by the ionosphere.

• True

• False

Another term for Channel in communication process is called _________.

• Mode of Communication

• Information

• Medium

• Semantic

A transponder is a satellite equipment which

• receives a signal from Earth station and amplifies

• changes the frequency of the received signal

• retransmits the received signal

• does all of the above-mentioned functions

A geosynchronous satellite

• has the same period a that of the Earth

• has a circular orbit

• rotates in the equatorial plane

• has all of the above

A satellite that travels in an orbit that exactly matches the Earth's rotation is traveling in a(n)

• low Earth orbit (LEO).
• low stationary orbit (LSO).
• geostationary orbit (GEO).
• high Earth orbit (HEO).

Satellites that pass over the north and south pole, have an orbit called

• Equatorial orbit

• Polar orbit

What is a downlink?

• A hyperlink on a website that you click to download material
• A satellite dish that receives a satellite signal
• A link that stations can hook up to to download audio
• A satellite dish that transmits a satellite signal

What is an uplink?

• A hyperlink on a website that you click to upload material
• A satellite dish that receives a satellite signal
• A link where stations can upload audio
• A satellite dish that transmits a satellite signal

The velocity with which the satellites revolves around a planet is called

• escape velocity
• orbital velocity
• areal velocity
• zero velocity

A satellite which takes 24 hours for 1 complete orbit is called a

• polar satellite
• geostationary satellite