Ionospheric backscatter observation at 440 Mc/s

Abstract

Gordon [1958] has described a technique for investigating certain characteristics of the ionosphere using a powerful radar to detect backscatter from free electrons. By this technique, Bowles [1958, 1959] has obtained backscattered returns from the F2 region at 41 Mc/s. In recent experiments at the MIT Lincoln Laboratory Millstone Hill radar in Westford, Massachusetts, ionospherically backscattered returns have been observed at heights ranging from under 100 km to about 800 km.