Kraus-type radio telescope
The Kraus-type radio telescope design was created by Dr. John D. Kraus.
Kraus-type telescopes are transit instruments, where the flat primary mirror reflects radio waves towards the spherical secondary mirror, which focuses it towards a mobile focal carriage. The primary tilts North-South to select any object near the meridian, while the focal carriage moves East-West along railroad ties to track objects near transit.Examples
The Nançay radio telescope in France and the former Big Ear in Ohio are Kraus-type telescopes, and the southern section of the RATAN-600 ring in Russia can operate as a Kraus-type telescope.
