Question

How many AM broadcast stations can be accommodated in a 100 kHz bandwidth if the highest modulating frequency of carrier is 5 kHz.

• A. 20
• B. 10
• C. 15
• D. 40

Answer 1

The correct option is B

10

5kHz signal will produced an upper side frequency 5 kHz above its carrier and a lower side frequency 5kHz below its carrier and bandwidth 10kHz. No. of stations $=\frac{100}{10}=10$.