Anonymous User

Hamboozler

Logging in (or registering) will help the system to select questions that you need to focus on.

G3B06

What usually happens to radio waves with frequencies below the LUF?

SelectAnswer
AThey are refracted and trapped in the ionosphere to circle Earth
BThey pass through the ionosphere
CThey are attenuated before reaching the destination
DThey are refracted back to Earth