The KVN antennas are also designed to be a shaped-Cassegrain-type antenna with an AZ-EL mount. The telescope has a 21 m diameter main reflector with a focal length of 6.78 m. The main reflector consists of 200 aluminum panels with a manufacturing surface accuracy of about 65 m. The slewing speed of the main reflector is 3 /sec, which enables fast position-switching observations (Table ). The sub-reflector position, tilt, and tip are remotely controlled and modeled to compensate for the gravitational deformation of the main reflector and for the sagging-down of the sub-reflector itself.
|Driving axis||Driving range||Max. driving speed||Max. driving acceleration|
|The north is 0 and the east is 90.|
|FR is 0 when Beam-1 is at the sky side and Beam-2 is at the ground side,|
|and CW is positive when an antenna is seen from a target source.|