MIL-HDBK-162 A
Volume 1
15 December 1965
Section 3
DATE: 1 July 1964
ITEM NAME: INDICATOR GROUP
COGNIZANT SERVICE: USN
TYPE: AN/SPA-25
FEDERAL STOCK NUMBER: 5840-448-0051
USA
USN
USAF
USMC
STATUS OR TYPE CLASSIFICATION
Std
Mfg(s) Name or Code Number: Motorola, Inc.
sweep driver tubes. The use of transistors in place of
FUNCTIONAL DESCRIPTION
electron tubes allows a reduction in unit size, simpler
Indicator Group AN/SPA-25 is a plan position radar
circuitry, and increased reliability.
indicator that is used as a repeater for search radars
Detected radar targets are illuminated on the CRT
having maximum ranges of 300 miles or less. The
for measurement of range and azimuth. Range is
indicator is transistorized except for one stage, the
measured by range marks and
AN/SPA-25: 1
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