NM Photos, 1994

Chuck Broadwell and Joe Greenberg in the VLBA correlator room in Socorro.

Records of the NRAO

NRAO/AUI/NSF

Still Image

NM-aug94-012-e.jpg

Slide

1994-08-00

NRAO/AUI/NSF

Tape drives are on the right. Broadwell and Greenberg, along with Ray Escoffier, Gene Runion, and Bob Treacy, designed and built the original VLBA correlator in Charlotesville; Greenberg and Broadwell maintained it when it moved to Socorro. Visible on the right are the back of some of the 20 large Honeywell tape drives, each as big as a refrigerator. A logic analyzer is on the cart in the center. On the left is a row of four AT&T PCs, which each talk to the microprocessors of a quadrant to monitor performance, and to the right of the PCs is a Sun work station used to compile assembly language code for the microprocessors. Greenberg said he is wearing a hat and coat because the equipment required that the correlator room be kept very cold, and suggests that Broadwell, in shirtsleeves, was probably in the room for a short consult.

Photographs Series

Very Large Array (VLA) Unit

2A