Millimetre wave propagation studies on a 500m range

A 500-m experimental range designed to study propagation effects through the prevailing meteorological phenomena at millimeter, infrared, and optical wavelengths is described. With atmospheric conditions remaining essentially constant over the path, basic modeling can be carried out on the influence of rain, fog, and snow, on the effects due to scintillation, and on the variability of atmospheric absorption due to humidity and temperature changes. The meteorological instrumentation and the transmission link systems are described, and some measurement results are presented.