Atmospheric disturbances were insignificant at that time. The frequency of echoes was equal to that of the main signal. K.Stermer explained the nature of echoes by reflection of radio waves from layers of part
Atmospheric disturbances were insignificant at that time. The
frequency of echoes was equal to that of the main signal. K.Stermer
explained the nature of echoes by reflection of radio waves from layers of
part
