Question

Sky wave propagation reflects the frequencies ___________

(a) 2MHz

(b) 2 MHz to 30MHz

(c) 2 GHz to 30 GHz

(d) 30 GHz to 50GHz

I have been asked this question in a job interview.

This intriguing question comes from Radio Wave Propagation topic in chapter Radio Wave Propagation of Antennas

Answer 1

Right option is (b) 2 MHz to 30MHz

For explanation I would say: Ground wave propagation also known as surface wave propagation is used up to 2MHz. sky wave propagation is used at 2MHz to 30MHz.