GPS-3

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GPS-3 Long Range Search Radar Set - A Long Range backup Search Radar set built by General Electric.

GPS-3 Search Radar

Text Adapted from Mil-HDBK-162A 15 Dec 1965.

Radar Set GPS-3 is used to back-up the search function of a primary surveillance radar set. The GPS-3 equipment has a maximum target detection range of 220 nautical miles using normal video. The antenna reflector mounted on Tower AB-397/FPS-8 may be manually preset to the desired angle of vertical tilt and may be rotated in forward or reverse direction through 360 degrees in azimuth. The reflector may be scanned through any sector of 40 to 120 degrees with the center of the sector at any azimuth position.

This radar set includes a coherent video cancellation type of a range indicator, and a PPI for monitoring received target video or for general testing. The antenna circuits for IFF equipment are included in Radar Set GPS-3. The GPS-3 is composed of a surveillance radar set, Tower AB397/FPS-8, and Radar Recognition Set UPX-6.

Either Arctic Tower AB-313/FPS-8 or Temperate Tower AB-397/FPS-8 is used with Radar Set GPS-3, depending upon environmental conditions. When the GPS-3 is used in an arctic installation, the power requirement is increased by 60 kilowatts by the addition of heat banks.

GPS-3 Search Radar
Element Value Notes
Nomenclature GPS-3
Origins
Variants
Manufacturer General Electric
Type Search
Number Made ?
IEEE Band L
Frequency 1280-1350 mc
PRF 360 pps
Pulse Width 3 us
Rotation Speed 0-10 rpm
Transmitter Power 1 mw Peak
Range 220 nmi (Normal delay)
160 nmi (Normal no delay)
150 nmi (MTI)
Long Range
File:GPS-3 System.png
FPS-3 System Components


See Also:

Sources:

  • Winkler, David F., Searching the Skies: the Legacy of the United States Cold War Defense Radar Program, USAF Hq Air Combat Command, 1997, 192 pages, Pdf, page 76.
  • MIL-HDBK-162A, 15 Dec 1965.

Links: