Radiometer/Tipper, 1989

This radiometer (tipper), operating at 225 GHz, was developed to test sites for the Millimeter Array. The feed, a rotating mirror, is at the left.  The radiometer front end is in the left half of the box, and the IF and digital sections are in the right half.  The box can be closed for ease of shipment and to preserve temperature stability during operation.  (Image submitted by D. Hogg and M. Balister, April 1989).  Publication references:  Electronics Division Report No. 271 (MMA Memo No. 41), Zhong-Yi Liu - August 1987.

Records of the NRAO

NRAO/AUI/NSF

Still Image

225GHz-site-testing-radiometer-1989.jpg

1989

Photographs Series

MMA/ALMA Unit