CBT Broadcast Transmission and Equipment

Question 1

Which type of modulation is most commonly used in FM broadcasting?

Accepted Answer

Frequency Modulation

Answer

FM broadcasting uses frequency modulation, where the frequency of the carrier signal varies with the amplitude of the input signal.

Question 2

What does ERP stand for in broadcasting?

Accepted Answer

Effective Radiated Power

Answer

ERP stands for Effective Radiated Power, which is the amount of power a transmitter appears to radiate when antenna gain is considered.

Question 3

What component is used to match the impedance between a transmitter and an antenna?

Accepted Answer

Antenna tuner

Answer

A transmission line or matching network ensures maximum power transfer by matching the impedance of the transmitter to the antenna.

Question 4

Which frequency band is typically used for FM radio broadcasting in the U.S.?

Accepted Answer

88 MHz - 108 MHz

Answer

The FM broadcast band in the United States ranges from 88 MHz to 108 MHz.

Question 5

What is the function of a broadcast transmitter?

Accepted Answer

Generate and amplify RF signals

Answer

A transmitter generates and amplifies RF signals that carry audio or video content to an antenna for broadcast.

(CBT) Certified Broadcast Technician Practice Test