OVERVIEW: The AN/FPS-6B Radar was a fixed, long-range, nodding  height finding radar operating in the "E" Band (NATO). 

DETAILS:  The AN/FPS-6 was noted for extreme accuracy at long range. The radar consisted of an antenna group, a transmitter group, a receiver group, and an ancillary group. Most fixed sites had a remote group, which allowed the control of the radar from inside the operations center. Also located in operations, was the anti-jam receivers. These receivers were fed with raw video from the tower receiver, and output several types of processed video to enable operators to see through jamming.

Specifications:

Frequency: 		2.7-to-2.9 GHz (NATO "E" Band)(IEEE "S" Band)
Power output: 		3.6 kW (average);  5 MW (peak) 
PRF:			300-400 pps	
Accuracy:		1 percent (range)  1000 feet (elevation) 				
On/Off time:		unknown
Deploy/Stow Time	N/A
Max Detection Ranges:   300 nm; 100,000 feet altitude
 


NOTES: The AN/FPS-6 series radar was introduced into service in the late 1950s and served as the principal height-finder radar for the United States for several decades thereafter. The AN/FPS-6B differs from the AN/FPS-6A mainly in improved components and the incorporated
variable nod feature. The AN/FPS-90 and AN/FPS-116 radars were identical to the AN/FPS-6 except for receiver modifications.  

SOURCES:  US Army. M 11-487C-1 MILITARY STANDARDIZATION HANDBOOK UNITED STATES RADAR EQUIPMENT. 1965. Available at http://www.nj7p.org/Manuals/PDFs/Military/TM%2011-487C-1%20V1%2015-Dec-65%20USAPA.pdf ;  Wikipedia. "General Electric AN/FPS-6 Radar" Accessed December 2, 2013. http://en.wikipedia.org/wiki/General_Electric_AN/FPS-6_Radar ; "General ElectricElectric AN/FPS-6 Radar." Wikipedia, the Free Encyclopedia. Accessed March 22, 2015. http://en.wikipedia.org/wiki/General_Electric_AN/FPS-6_Radar ; "AN/FPS-6 - Radartutorial." Grundlagen Der Radartechnik. Accessed April 29, 2020. https://www.radartutorial.eu/19.kartei/11.ancient/karte018.en.html ; "AN/FPS-6 Long-Range Height Finder Radar - United States Nuclear Forces." Federation Of American Scientists – Science for a Safer, More Informed World. Accessed April 29, 2020. https://fas.org/nuke/guide/usa/airdef/an-fps-6.htm.