Question

In sky-wave propagation, skip-distance depends on :

• A. frequency of e.m. waves transmitted
• B. critical frequency of the layer
• C. height of layer above earth?? surface
• D. all the above

Answer 1

Answer: (D)

all the above

Answer 2

Skip distance is the minimum distance on earth?? surface from the transmitter where e.m. wave of a definite frequency can reach after reflection from the ionosphere It is given by $D_{skip} = 2 h \sqrt{\frac{f^2}{f_c^2} - 1}$ $\Rightarrow \, D_{skip}$ is dependent on h, f and fc.