Volume 1
MIL-HDBK-162A
Section 3
15 December 1965
ITEM NAME: RADAR INDICATING EQUIPMENT
TYPE: VG-3
Ranges: 4, 10, 20, 80, 200 mi.
The inner dial is fixed and is adjustable for true or
Pulse Rate
relative bearing, the outer dial rotates and presents the
4, 10, 20 Mile Ranges: 60 to 1050 cps
target designation.
80 Mile Range: 60 to 850 cps
200 Mile Range: 60 to 325 cps
RELATION TO SIMILAR EQUIPMENT
Picture Diameter: 24 in. (screen dia) 25 in.
Image Visibility: Image on viewing screen
Similar to VG, VG-1, VG-2 except for a few mechanical
may be observed in the presence of 1 foot-
changes.
angle of direct lighting.
Bearing Accuracy: Within 3/4 of 1 deg
TECHNICAL DESCRIPTION
Operating Power: 115v, 1-ph, 60 cps.
Signal Input
INSTALLATION CONSIDERATIONS
Trigger Pulse Voltage: 5 to 40v peak.
Video Pulse Voltage: 3v peak.
Not available.
O.S.C. Synchro: S1, S2, S3, R1, R2.
Radar Bearing: S1, S2, S3, R1, R2.
PRINCIPAL COMPONENTS AND PHYSICAL DATA
COMPONENTS
QTY
OVERALL DIMENSIONS
UNIT WT.
(Inches)
(Pounds)
Projection PPI Repeater NT-55AFN
1
34 x 25 x 59
1000
Complete with all tubes, lamps & fuses
Selector Switch NT-24168-
1
9-1/2 x 9-1/2 x 16-1/2
20
Roll of Tracing Paper (CELO-VEL #316)
1
27 x 30 yds
Mounting for Computer MC316-A
1
Air Exhaust pipe fitting plate
1
(furnished in spare parts box)
Terminal Tubes, Mounted on bottom panel
3
mounting plate
Armored Coaxial Cable RG/12U
2
7 ft.
Equipment, Stock, and Mobile Spare Parts
for ea Projection PPI Repater & Selector
Switch
REFERENCE DATA AND LITERATURE
Technical Manuals:
SHIPS 261
VG-3: .2
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