Question

Communication at high frequencies is often called as ____________

(a) Longwave radio

(b) Ultra shortwave radio

(c) Shortwave radio

(d) Mediumwave radio

The question was posed to me during an internship interview.

My question is taken from Radio Shop in portion Radio Shop of Aircraft Maintenance

Answer 1

Right choice is (c) Shortwave radio

To elaborate: Communication at high frequencies is often called shortwave radio. This is because the HF band is a major part of the shortwave band of frequencies.