Deck 5: The Transmitted Signal

Question 1

The process of putting information on a carrier wave is called rectification.

Answer 1

False

Question 2

A total of three modulated carriers make up the total composite signal.

Answer 2

True

Question 3

In television broadcasting, the video image was transmitted by frequency modulation of the carrier.

Answer 3

False

Question 4

When the television system was originally created, it was decided that 4 MHz of bandwidth or spectrum space would be made available for the transmission of television signals on the carrier for each particular station.

Question 5

Portions of both the VHF and UHF spectrum space have traditionally been used in analog television broadcasting.

Question 6

A virtual channel is a channel designation that differs from the actual assigned channel frequency.

Question 7

Because digital signals take less spectrum space than analog, multiple signals can be carried simultaneously, even on a virtual channel, through what are called sub-channels.

Question 8

Geosynchronous orbit means that a satellite orbits 22 miles above the earth and will appear to stay in a fixed or stationary position.

Question 9

Alexander Graham Bell was one of the early modern developers who used light to transmit human speech.

Question 10

Single-mode fiber optic cable uses multiple modes of light simultaneously to carry data.