Introduction
Antenna
Data Acquisition
Correlator
Pedestal Room
Subreflector
Feed Cone
Receivers
A-Rack
B-Rack
Cables
Antenna:
Pedestal Room
Antenna Control Unit (ACU) Rack in the Pedestal Room. The site technician can take local control of the antenna and move it in Azimuth and Elevation using this rack. The antenna can also be disabled from computer commands through this rack.
Antenna signal path:
Pedestal Room


While the racks in the Pedestal room are not in the signal path, they are nonetheless important in the operation of elements in the signal path.

The Antenna Control Unit (ACU) rack interfaces with the station computer and commands the azimuth and elevation motors to point the antenna at the source that is being observed. When slewing (moving to source), the antenna can move 90 degrees a minute in azimuth and 30 degrees a minute in elevation.

The subreflector interface rack is in the Pedestal room. It interfaces with the station computer to position the subreflector in focus and rotation.