GMRT


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GMRT

Abbrev. for Giant Meter-wave Radio Telescope. The world's largest radio telescope operating at meter and decimeter wavelengths, located 80 km north of Pune in India. It is an aperture synthesis array consisting of 30 fully steerable parabolic dishes, each of 45-meter diameter, operating at six frequency bands in the range 38 to 1420 MHz. The dish surfaces are of a novel design called SMART, using a thin wire mesh stretched over rope trusses. Twelve of the dishes are in a central array one kilometer square, and the remaining eighteen are distributed along three 14-km tracks in a Y-shaped configuration (compare VLA). The telescope is designed to look for highly redshifted hydrogen-line emission from the early Universe, and to study millisecond pulsars with a view to measuring primordial gravitational waves.