Question G3C04
From subelement G3 - G3C
G3C04
Answer: DWhat does the term “critical angle” mean, as applied to radio wave propagation?
AThe long path azimuth of a distant station
BThe short path azimuth of a distant station
CThe lowest takeoff angle that will return a radio wave to Earth under specific ionospheric conditions
DThe highest takeoff angle that will return a radio wave to Earth under specific ionospheric conditions