KAT-7 is a
radio telescope constructed in the
Northern Cape of
South Africa. Part of the
Karoo Array Telescope project, it is the precursor engineering test bed to the larger
MeerKAT telescope, but it has become a science instrument in its own right. The construction was completed in 2011 and commissioned in 2012. It also served as a technology demonstrator for
South Africa's bid to host the
Square Kilometre Array. KAT-7 is the first Radio telescope to be built with a composite reflector and uses a
stirling pump for 75 K cryogenic cooling. The telescope was built to test various system for the MeerKAT array, from the
ROACH correlators designed and manufactured in
Cape Town, now used by various telescopes internationally, to composite construction techniques. With the short baselines the telescope is suited to observing diffuse sources, but will begin
VLBI observation in 2013.