[Jansky at antenna]
NRAO/AUI image

[Reber telescope]
NRAO/AUI image

[85 foot Tatel telescope]
NRAO/AUI image

[300 foot telescope]
NRAO/AUI image

[140 foot telescope]
NRAO/AUI image

[Green Bank Interferometer]
NRAO/AUI image

[12 meter telescope]
NRAO/AUI image

[VLA]
NRAO/AUI image

[AIPS logo]
NRAO/AUI image

[VLBA antenna 1]
NRAO/AUI image

[Green Bank Telescope]
NRAO/AUI image

[ALMA antennas]
NRAO/AUI image


National Radio Astronomy Observatory Archives: NRAO Timeline


[Karl G. Jansky Very Large Array dedication, 31 March 2012]

Upgrading the electronics of the VLA to the technological state of the art began in 2001, and completion is scheduled for late 2012. The upgrade project was funded by the National Science Foundation, and by contributions from Canada and Mexico. The upgrade replaced the 1970s-vintage electronic equipment, analog data-transmission system, and the central, special-purpose computing "heart" of the system with state-of-the-art receivers and electronics, an all-digital, high-bandwidth fiber-optic data-transmission system, and a new, central supercomputer with an innovative design, built by NRAO's Canadian colleagues. When the upgrade project started, the VLA was called the Expanded VLA, or EVLA. On 31 March 2012 the instrument was rededicated as the Karl G. Jansky Very Large Array. The Jansky VLA is more than ten times more sensitive to faint radio emission than the original VLA, and covers more than three times more radio frequency range.

Center: The JVLA in D array. Top: Attendees at the rededication ceremony. Lower right: NRAO Director Fred Lo (standing) commands the start of first official observation of the Jansky VLA; seated behind Dr. Lo are Ethan Schreier, AUI President, and James Ulvestad, NSF Astronomical Sciences Division Director. Lower left: Moreau Parsons, daughter of Karl Jansky, at the ceremony. NRAO/AUI images


Modified on Wednesday, 04-Apr-2012 16:11:13 EDT by Ellen Bouton