MIL-HDBK-162A
Volume 1
15 December 1965
Section 3
DATE: 1 July 1964
ITEM NAME: DECODER GROUP
COGNIZANT SERVICE: USN
TYPE: AN/UPA-24
5840-699-4003
FEDERAL STOCK NUMBER: 5840-347-9143 W/S
USA
USN
USAF
USMC
STATUS OR TYPE CLASSIFICATION
Sub. Std
Mfg(s) Name or Code Number: Brubaker Mfg., Co., Capehart-Farnsworth Co.
Similar to the AN/UPA-24A.
FUNCTIONAL DESCRIPTION
TECHNICAL DESCRIPTION
Decoder Group ANAJPA-24, when interconnected
Operating Voltages and Power Requirements:
with a radar recognition set, facilitates the interpretation
117v, 60 or 400 cps, 1-ph
of coded IFF signals. The equipment selects a coded
Video Input and Output lmpedances: 70 ohms nom
video pulse-train in one of three modes from a
recognition set. The coded pulse-train is presented to
the decoder circuitry. If the pulse-train is correctly
INSTALLATION CONSIDERATIONS
coded, an indication in the form of a single decoded
pulse is available for presentation on a radar indicator.
Siting:
If the pulse-train is not correctly coded, a decode pulse
Mounting: All units should be mounted so that it
is not available for presentation. The equipment also
will not be necessary to dismantle the mount-
permits the presentation of the coded or decoded
ing brackets in order to remove the units.
identification signal alone, the radar signal alone, or the
Cabling Requirements: Sufficient slack should
be left in the interconnecting cabling to per-
radar signal mixed with either the coded or decoded
mit removal of the chassis from its case
identification signal.
without placing undue strain on the connec-
tions.
RELATION TO SIMILAR EQUIPMENT
Related Equipment: AN/UPX-1, -1A
AN/UPA-24:-1
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