摘要: A 28-foot diameter antenna,operating at wavelengths of 8.5mm,was installed and tested. This report describes the evaluation of the test range and the electrical testing of the antenna at a wavelength of 8.5mm. A series of grain,p... 展开 A 28-foot diameter antenna,operating at wavelengths of 8.5mm,was installed and tested. This report describes the evaluation of the test range and the electrical testing of the antenna at a wavelength of 8.5mm. A series of grain,pattern,and boresight shift measurements was taken to determine the effects of different ambient temperatures,nonuniform solar heating and wind conditions. On a typical daily run,measurements were taken at 1 - 1 1/2hour intervals beginning before dawn and continuing until the late afternoon. Approximately 15complete daily runs were made during various weather conditions which included winds up to 25 - 30mph and ambient temperatures ranging from the mid 30's (degrees F) to the high 80's. (Author) 收起