Question

The height of the antenna
a) limits the population covered by the transmission
b) limits the ground wave propagation
c) effectively used in line of sight communication

• A. a & b are true
• B. b & c are true
• C. c & a are true
• D. a, b,c are true

Answer 1

Answer: (D)

a, b,c are true

If $H$ is the height of the antenna then the distance that it can send the signals to is $3.57\sqrt{H}.$ Clearly height limits the population covered and ground wave propagation. If the communication is in line of sight this is used effectively as noise addition is less.