Instrument and systems¶ Follow the navigation by subsystem, from the antennas and analog signal path to the control, computer, network, and database systems. Hardware¶ Hardware overview 2.1-m antennas 27-m antennas Frequency tuning and downconversion Computers and control¶ Computing systems Network Control commands Attenuation and level control Databases and software¶ Calibration database Stateframe database Database maintenance Create CASA measurement sets