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Retrofit digital DC drives for space comms applications

30 June 2022

Why did one of the world’s premier space communication gateways, Goonhilly Earth Station, choose to upgrade its deep-space satellite dish with Sprint Electric digital DC drives, rather than opting for AC alternatives?

The overall project objective was to renovate a deep-space antenna to create a whole new control platform. This involved undertaking an extensive upgrade of the dish, including overhauling both the radio equipment and the motor drive system. 

Originally built in 1972, Antenna GHY-3 consists of a reinforced-concrete tapered tower and a main 29.6m diameter counterbalanced reflector dish, which is held within a frame of interconnected and braced metal girders. There is an external lift that leads to the second floor, where there is an external walkway with a protective railing that leads to a brick-built support building. As a Grade 2 listed site, this landmark building is of special interest, warranting every effort to preserve its history and visual appeal. 

Read the full article in DPA's July issue

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