Question

A cable TV service uses a single coaxial cable with a bandwidth of 860 MHz to transmit multiple TV signals to subscribers. Each TV signal is 6 MHz wide. How many channels can be carried?

(a) 143

(b) 123

(c) 100

(d) 150

The question was asked in an interview for job.

This interesting question is from Frequency Division Multiplexing in section Radio Transmitters, Communication Receivers, Multiplexing and Demultiplexing of Avionics

Answer 1

Correct answer is (a) 143

Easy explanation: Total channels = 860/6 = 143.33 or 143.