The F2 Component of Cosmic Radio Noise Absorption

Abstract

The attenuation of cosmic radio waves expected in the F region is calculated. It is shown that by using an F-region model obtained from electron backscatter measurements the attenuation obtained agrees well with observation. The amount of attenuation is generally less than 0·2 dB, providing the wave frequency is greater than twice f OF2 for wave frequencies less than 10 Mc/s.