Numerous height measurements of ionospheric irregularities have shown them to be located in the region 300-600 km above the ground. Observations are presented which show that there is no appreciable reduction in scintillation at 136 MHz when a satellite looses height from in excess of 1000 km to less than 300 km. Author
Final scientific rept. 1 Nov 69-31 Dec 71,
Prepared in cooperation with Norwegian Defence Research Establishment, Kjeller.