MISA Antenna

The 150' Millstone Hill Steerable Antenna is located at MIT Haystack Observatory in Westford Massachusetts. This fully steerable antenna was designed by the Stanford Research Institute (SRI) in 1959. It was originally installed at the Sagamore Hill Air Force facility in Wenham Massachusetts in 1963. The antenna was moved from that location to Millstone Hill in 1978. Since that time it has been primarily used as a UHF radar antenna to provide measurements of the near space environment using the incoherent scatter radar technique. It is one of two surviving dish antennas of this type in the world with the other antenna being located at the Stanford University radio science field site in Stanford, California. MISA is used to provide wide radar coverage in latitude and longitude.

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