MIL-HDBK-162A
Volume 1
15 December 1965
Section 3
DATE: 1 July 1964
ITEM NAME: CONTROL INDICATOR GROUP
COGNIZANT SERVICE: USN
TYPE: AN/SPA-55(XN-1)
FEDERAL STOCK NUMBER:
USA
USN
USAF
USMC
STATUS OR TYPE CLASSIFICATION
Mfg(s) Name or Code Number. Motorola Incorporated, Chicago, Illinois
Illustration not Available.
assembly of four indicator lights is mounted at each of
FUNCTIONAL DESCRIPTION
two air controller positions in the AN/SPA-22. The
AN/SPA55(XN-1) displays interceptor status from the
The AN/SPA-55(XN-1) interchanges analog voltages
AN/SPA-22. It transfers analog voltage position data
between Indicator Control Group AN/SPA-26(V) and
from the AN/SPA-22 via scale change amplifiers to the
Intercept Tracking and Control Group AN/SPA-22. Pilot
lights indicate the status of AN/SPA-22 channels. An
AN/SPA-55(XN-1): 1
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