Port Isabel Air Force Station
||This article includes a list of references, related reading or external links, but its sources remain unclear because it lacks inline citations. (December 2012)|
|Port Isabel Air Force Station|
|Part of Air Defense Command (ADC)|
|Type||Air Force Station|
|Controlled by||United States Air Force|
|Garrison||811th Aircraft Control and Warning Squadron|
Port Isabel Air Force Station (ADC ID: TM-190) is a closed United States Air Force General Surveillance Radar station. It is located 18.7 miles (30.1 km) north-northeast of Brownsville, Texas. It was closed in 1961.
Port Isabel Air Force Station came into existence as part of Phase III of the Air Defense Command Mobile Radar program. On October 20, 1953 ADC requested a third phase of twenty-five radar sites be constructed.
The 811th Aircraft Control and Warning Squadron was moved to the former Port Isabel Auxiliary Naval Air Station on 1 January 1958. It operated an AN/FPS-3A search radar and an AN/FPS-6 height-finder radar at the site, and initially the station functioned as a Ground-Control Intercept (GCI) and warning station. As a GCI station, the squadron's role was to guide interceptor aircraft toward unidentified intruders picked up on the unit's radar scopes.
The Air Force inactivated Port Isabel AFS on 1 June 1961 due to budgetary constraints. Today the site is part of the Port Isabel-Cameron County Airport.
- Constituted as the 811th Aircraft Control and Warning Squadron
- Activated on 8 November 1956 at Oklahoma City AFS, OK (not equipped or manned)
- Moved to Port Isabel AFS on 1 January 1958
- Discontinued and inactivated on 1 June 1961
- Cornett, Lloyd H. and Johnson, Mildred W., A Handbook of Aerospace Defense Organization 1946 - 1980,  Office of History, Aerospace Defense Center, Peterson AFB, CO (1980).
- Winkler, David F. & Webster, Julie L., Searching the Skies, The Legacy of the United States Cold War Defense Radar Program,  US Army Construction Engineering Research Laboratories, Champaign, IL (1997).
- Information for Port Isabel AFS, TX