Height gain in forest medium: An empirical analysis

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