December 1969 | NTIA Technical Memo ER LTM ITS 210
UHF propagation measurements from elevated to buried antennas
F. George Kimmett; Larry G. Hause; P. L. McQuate
Abstract: This report describes many of the UHF propagation characteristics between aircraft or satellites and buried antennas. A vertical monopole was used as a reference antenna, and the propagation characteristics of an annular slot and other antennas, omnidirectional in azimuth, were measured. The effects of reflecting planes used in conjunction with buried elementary antennas were measured. Site power gain patterns were measured from the buried antenna site at elevation angles up to 700 • These tests were made over a reasonably smooth plane, on paths of O. 03, 0.06, and 1 kIn, and at various transmitting antenna heights, with a helium-filled balloon. In some of the tests security fences were used.
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