Communication Systems - Engineering

Q1:

The number of channels available in MF band (300 kHz - 3 MHz) for AM modulating signal of 20 kHz is

A 70

B 67

C 100

D 150

ANS:B - 67

In MF band, frequency space available = 3000 - 300 2700 kHz when AM is used Bandwidth of each channel. = 2 x 20 kHz = 40 kHz .