It was initially built by MIT's Lincoln Laboratory for the United States Air Force and was known as Haystack Microwave Research Facility. The site comprises three major radars –
The Space Surveillance Complex (LSSC) Millstone Deep-Space Tracking Radar (an L-band radar). A deep space/atmospheric sciences research center.
Haystack Long-Range Imaging Radar (X-band), Like Millstone, contributes to the U.S. Space Surveillance Network.
Haystack Auxiliary Radar (Ku-band). gh-power L-band radar, is used for tracking space vehicles and space debris and plays a key role in the national deep-space surveillance program.
Originally posted by Manhater
What are those crate grates? That looks weird.
This array has been designed to make a sensitive search for the 327 MHz spectral line of deuterium. . Since almost all the RFI comes from the horizon, the station array has parasitic directors added to the dipoles to reduce the response at the horizon. An RFI monitor with 12 active Yagi antennas pointed every 30° in azimuth provides a way of determining the direction of the RFI and yields information on frequencies and time spans that need to be excised from the array data.
PAVE PAWS is an Air Force Space Command radar system. The radar is used primarily to detect and track sea-launched and intercontinental ballistic missiles. The system also has a secondary mission of Earth-orbiting satellite detection and tracking. Information received from the PAVE PAWS radar systems pertaining to SLBM/ICBM and satellite detection is forwarded to the United States Space Command's Missile Warning and Space Control Centers at Cheyenne Mountain Air Force Base, CO. Data is also sent to the National Military Command Center and the US Strategic Command.
The phased array radar incorporates nearly 3,600 small, active antenna elements coordinated by two computers. One computer is on-line at all times and the second computer will automatically take control if the first fails. The computers feed energy to the antenna units in precise, controlled patterns, allowing the radar to detect objects at very high speeds since there are no mechanical parts to limit the speed of the radar sweep. The PAVE PAWS radar can electronically change its point of focus in milliseconds, while conventional dish-shaped radar may take up to a minute to mechanically swing from one area to another.