[Doc Ewen looks into the horn antenna, 1950]
Image courtesy of Doc Ewen

Introduction

Harvard Cyclotron: 1948-1951


Detection of HI Line: 1951

Harvard 24ft and 60ft and NRAO founding: 1952-1956

1950s and 1960s: Two Roads that Crossed

Microwave & Millimeter Wave Applications in the 1970s and 1980s

Mm Wave Radiometry in the 1990s

May 2001 visit to NRAO Green Bank

Bibliography

Permissions


[Doc Ewen and horn antenna, 2001]
Image courtesy of Doc Ewen

Doc Ewen: The Horn, HI, and Other Events in US Radio Astronomy

by Doc Ewen, © 2003

Millimeter Wave Radiometry in the 1990s: MAPS slide 12

[MAPS and RAVIN at Westover AFB]

MAPS and RAVIN at Westover AFB in 2003. This is the last time that MAPS and RAVIN are seen together. MAPS returned to Eglin AFB and Ravin was reconfigured as the RAVIN-SL5. The search light was located on the tongue of the low bed trailer, after the tracking mount and its enclosure were removed. RAVIN returned to Telaxix/Millivision during the winter of 2003. Credit: Photo courtesy of Doc Ewen.

MAPS slide 13
Modified on Sunday, 05-Jun-2005 08:29:13 EDT by Ellen Bouton