Abstract

Radio path loss measurements were conducted in various tropical rain forests of India at frequencies from 50 to 800 MHz, antenna heights from 1.5 m to 16.5 m above ground with both horizontally and vertically polarized emissions, and at a large variety of path ranges. The results from a series of antenna height-gain measurements in the forest vegetation are presented. Based on the data thus collected, an empirical model is suggested to assess quantitatively the antenna height gain as a function of frequency and antenna heights.

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