A comparison of line-of-sight transmissions at millimetre, infrared and optical wavelengths

Abstract

A comparison has been made of line-of-sight propagation over a 500 m path at millimetre, infrared and optical wavelengths, under a wide variety of meteorological conditions. The results indicate that, for climates prone to conditions of fog, the millimetric region of the electromagnetic spectrum provides a more effective and reliable means of communication.