The seven-dish MeerKAT precursor array, KAT-7, is the world’s first radio telescope array consisting of composite antenna structures.
KAT-7 was primarily built as a precursor to the 64-dish MeerKAT radio telescope array and to demonstrate South Africa’s ability to host the SKA. However, it has proved to be a pioneering scientific instrument in its own right.
KAT-7 is considered a compact radio telescope, since its antennas all lie within an area only 200m across, as opposed to the much larger areas that will be occupied by MeerKAT and the SKA. The KAT-7 configuration is perfect for observing nearby galaxies, which emit radio waves on a large scale.
More details can be found here.