FPS-20

 Long Range Search Radar Set - A Long Range Search Radar set built by Bendix Corporation. Deployed in the late 1950s and 1960s to SAGE System radar sites. One of the most widely used heavy search radar sets during the period. Modified by GPA-102 and GPA-103 modification kits to provide additional electronic counter-counter measures (ECCM) and re-designated as a FPS-64/65/66/67 depending on which kit was applied.

FPS-20 Search Radar
See Also:
 * SAGE System
 * US Radar Sets

Sources:
 * MIL-HDBK-162A, 15 Dec 1965.
 * MIL-HDBK-162A, 15 Dec 1965.

Links:
 * Radomes - FPS-20
 * Radomes - Radar Equipment
 * Wikipedia - FPS-20
 * FAS - FPS-20
 * Radar Tutorial FPS-20