PropagationHardQuestion 20263
Question
Skip distance in sky-wave propagation is:
- ADistance over which ground wave fails
- BMinimum distance from transmitter where sky wave first returns to EarthCorrect
- CMaximum ionosphere height
- DDistance between satellite and Earth
Correct answer
Minimum distance from transmitter where sky wave first returns to Earth
Explanation
Skip distance is the minimum range of sky-wave coverage. Between the end of ground-wave range and the start of sky-wave skip distance is a 'dead zone' with no reception. It depends on ionospheric height, frequency, and launch angle.