What makes the Green Bank Telescope Special?
Size: 2.3 acre (7854 square meters) collecting area.
Unblocked Aperture: The GBT dish is completely unblocked which results in better system noise and image quality and reduced suseptibility to interference.
Active Surface: The surface panels can be individually adjusted to maintain the reflector's shape to an accuracy of 100 millionths of a meter!
Wide Frequency Coverage: 300 MHz (1 meter wavelength) to 50 GHz. Development is underway to reach 100 GHz. (3 millimeters wavelength)!
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