Question

Which is polarization is used in ground wave propagation and why?

Answer 1

Answer:

The type of antenna and its polarization has a major effect on ground wave propagation. Vertical polarization is subject to considerably less attenuation than horizontally polarized signals. This may serve to reinforce or cancel the overall signal resulting in figures that will differ from those that may be expected. This refraction is a change in direction of a wave due to a change in its speed of propagation. Generally the amount of refraction that occurs in the earth' atmosphere depends on three main factors: the density of ionization of the layer, the frequency of the radio wave.

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