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11.0 Metre Earth Station Antenna System
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11.0 Metre Earth Station Antenna System - C-Band, Extn. C-Band & Ku Band
The 11.0 metre cassegrain type antenna system is designed for high structural stability, and thereby pointing accuracy of very high order is achieved; apart from ease in installation.
The reflector panels are doubly curved and formed to high RMS accuracy of 0.5 mm. The cassegrain feed consists of conical horn and sub reflector and forms optics with shaped reflector and thus provides about 60% efficiency of the aperture; combined with excellent side lobe level performance. 60 panels in 3 rows are mounted on 24 radial trusses emanating from a central hub. The center hub is spacious enough to accommodate the receive electronics.
The mount is an elevation over azimuth available in 3 types. One, a conical mount for 360.rotation in segments of .20. second, one king post mount with 110.continuous and 180.in two positions type and the third one with .330.in azimuth using a slewing ring gear with bearing.
The antenna meets all latest specs of ITU-RS-580 for earth station antenna systems.
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