What types of transmission signals are continuously varying electromagnetic waves?
A)Digital
B)Analog
C)Subbing
D)All of the Above

Question

Quizplus · Accepted Answer

Analog transmission signals are continuously varying electromagnetic waves. These waves are carried over air, water, twisted-pair cable, coaxial cable, and fiber-optic cable. Through a process of modulation, data are combined with a carrier signal of a specified frequency. The carrier signals provide many radio station frequency ranges and communication channels. Each radio station is given a certain carrier signal and frequency to use for transmissions. This is different from digital signals, which are binary digits as electrical pulses.

What Types of Transmission Signals Are Continuously Varying Electromagnetic Waves