Electromagnetic waves from cosmic radio sources bounce off the main reflector, then off the sub-reflector, and are then focused in the feed horn, which is part of the receiver.
The South African MeerKAT radio telescope, currently being built some 90 km outside the small Northern Cape town of Carnarvon, is a precursor to the Square Kilometre Array (SKA) telescope and will be integrated into the mid-frequency component of SKA Phase 1. The SKA Project is an international enterprise to build the largest and most sensitive radio telescope in the world, and will be located in Africa and Australia.
Who is manufacturing the MeerKAT antennas
In some cases foreign companies will manufacture components for the first antenna - such as the first set of reflector panels, first receiver indexer and first sub-reflector - but the rest will be made locally. Suppliers from abroad include the National Research Council of Canada, through the Herzberg, Programs in Astronomy and Astrophysics (low-noise amplifiers and first sub-reflector); Oxford Cryosystems Ltd. (cryogenic coldheads) and Vertex Antennentechnik (control systems).
Efficient Engineering is proud to have been chosen as one of the local manufacturers tasked with delivering a world class product showcasing an African product fit for the world stage.