Tropospheric scatter propagation and meteorological conditions in the Caribbean

Results are given of radio propagation measurements which have recently been made in the Caribbean. The transmission loss on beyond-the-horizon paths in this region was found to be considerably less than that measured over paths of similar length in temperate climates. The fact that the path loss is, in general, relatively low in the Caribbean is believed to be chiefly due to the large gradient of the refractive index of the atmosphere which normally prevails in the first few hundred feet above the earth's surface in that area.