In a reflector antenna[?], the relative reduction in the effective aperture of the antenna caused by the masking effect of other antenna parts, such as a feed horn or a secondary reflector, which parts obstruct the radiation path.
... Heights is located at 40°45'43" North, 73°22'1" West (40.761998, -73.366895)1.
According to the United States Census Bureau, the town has a total area of 3.5 ...