3 papers
astro-ph.IM2013
The Digital Motion Control System for the Submillimeter Array Antennas
T. R. Hunter, R. W. Wilson, R. Kimberk +9
We describe the design and performance of the digital servo and motion control system for the 6-meter diameter parabolic antennas of the Submillimeter Array (SMA) on Mauna Kea, Haw…
astro-ph.IM2011
Design and Performance of a Digital Phase Lock Loop for Gunn Oscillators
Todd R. Hunter, Robert Kimberk, Patrick Steve Leiker +2
The digital phase lock loop described in this paper has been in use on the Submillimeter Array (SMA) front-end receivers for over a decade and has been a key element in obtaining a…
astro-ph2005
Receiver control for the Submillimeter Array
T. R. Hunter, R. W. Wilson, R. Kimberk +2
Efficient operation of a submillimeter interferometer requires remote (preferably automated) control of mechanically tuned local oscillators, phase-lock loops, mixers, optics, cali…