Question

The tropospheric scattering occurs at _________

(a) Beyond the LOS

(b) In ground wave propagation

(c) In sky wave propagation

(d) Below the radio horizon

I have been asked this question during a job interview.

My question comes from Space Wave Propagation topic in chapter Space Wave Propagation of Antennas

Answer 1

Correct answer is (a) Beyond the LOS

To explain I would say: Tropospheric scattering occurs at a frequency above 30MHz. So, this occurs in space wave propagation. Signal scatters in forward direction above the radio horizon and it travels beyond the LOS. Ground wave propagation occurs at less the 2MHz and sky wave at 2 to 30 MHz frequency.