Effective Antenna Temperatures Due to Oxygen and Water Vapor in the Atmosphere

Abstract

Calculations of the effective noise temperature at the terminals of a high gain antenna due to oxygen and water vapor in the atmosphere are given for the frequency range 0.5 to 40 kmc. In the 1 to 10 kmc band, the effective temperature increases from about 3° to 100°K as the zenith angle is increased from 0° to 90°. Calculated values of the total attenuation through the atmosphere are given.