Joint Surveillance System
Videos
The Joint Surveillance System is a joint United States Air Force and Federal Aviation Administration system for the atmospheric air defense of North America. It replaced the Semi Automatic Ground Envi
The former J-31 San Pedro JSS ARSR-1 radar site, California
USAF Battle Control System operators monitor the skies from the floor of the program's Eastern Air Defense Sector location.
The Semi-Automated Ground Environment was a system of large computers and associated networking equipment that coordinated data from many radar sites and processed it to produce a single unified image
Joint Surveillance System
…JSS) is a joint United States Air Force and Federal Aviation Administration system for the atmospheric air defense of North America. It replaced the Semi Automatic Ground Environment (SAGE) system in 1983. The JSS consists of long range surveillance radars, primarily operated and maintained by the Federal Aviation Administration…
![The 4-story SAGE blockhouses with 3.5 acres (1.4 ha) of floor space "were hardened [for] overpressures of" 5 psi (34 kPa). A shorter adjoining buildin](https://upload.wikimedia.org/wikipedia/en/thumb/e/eb/Sage_typical_building.jpg/500px-Sage_typical_building.jpg)
The 4-story SAGE blockhouses with 3.5 acres (1.4 ha) of floor space "were hardened [for] overpressures of" 5 psi (34 kPa). A shorter adjoining building (left) had generators below the 4 intake/exhaust structures on the roof. (DC-01 shown)
Whirlwind computer elements: core memory (left) and operator console
Module from a SAGE
The RCA #6499 Radechon tube was used for random-access memory in the computers.