High Quality Content by WIKIPEDIA articles! The Yuan-Tseh Lee Array for Microwave Background Anisotropy, also known as the Array for Microwave Background Anisotropy (AMiBA), is a radio telescope designed to observe the cosmic microwave background and the Sunyaev-Zel`dovich effect in clusters of galaxies. It is located on Mauna Loa in Hawaii, at 3,396 m above sea level.