Volume 1
MIL-HDBK-162A
Section 3
15 December 1965
ITEM NAME: ANTENNA ASSEMBLY
TYPE: AS-177(XN-21)/UPX
Gain: 2.5 db plus or minus O.5 over a
RELATION TO SIMILAR EQUIPMENT
half-wave dipole.
None.
INSTALLATION CONSIDERATIONS
Related Equipment: AS-177(XN-21)/UPX
TECHNICAL DESCRIPTION
is primarily intended for use with the
AN/SPX-1 and AN/SPX-2 radio equipments
Feed: Coaxial transmission line.
although it may also be used with other
Polarization: Vertical.
equipments.
Beamwidth: 47-1/2 plus or minus 12-1/2
at 3 db down from max.
PRINCIPAL COMPONENTS AND PHYSICAL DATA
SHIPPING DATA
COMPONENTS
BOXES
OVERALL DIMENSIONS
UNIT WT.
(NR.))
(Inches)
(Pounds)
Antenna Assembly AS-177(XN-21)/UPX
1
8 x 15-1/4 x 26-3/8
20
EQUIPMENT SUPPLIED DATA
COMPONENTS
QTY
OVERALL DIMENSIONS
UNIT WT.
(Inches)
(Pounds)
Antenna Assembly AS-177(XN-21)/UPX
1
6 x 8-5/8 x 19-1/2
8
REFERENCE DATA AND LITERATURE
Technical Manuals:
NAVSHIPS 900, 954
4S-177(XN-21)/UPX: 2
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