Valcom Manufacturing Group, Inc.
1
1.0 V-425 INFORMATION
1.1
Introduction
This section describes the electrical and mechanical properties of the V-425 series of
fibreglass whip antennas. Information necessary to install, operate and maintain the
antenna system is covered in the sections to follow.
1.2
Technical Reference Data
Mechanical Properties
V-425
V-425FT
V-425CL
Top Section Length
18.5 ft (5.67 m)
Base Section Length
17.5 ft (5.33 m)
Typical Assembly Length
36.0 ft (11.0 m)
36.9 ft (11.3 m)
36.0 ft (11.0 m)
Weight
155 lbs (70.3 kg)
160 lbs (72.5 kg)
155-175 lbs (70-80 kg)
Conductor Material
Copper wire and strips embedded in the fiberglass and thermo-setting
epoxy resin composite
Finish
Polyurethane paint
Mounting Position
Vertical
Base Diameter
17.5 inches (43.75 cm)
Mounting Hole Diameter
0.718 inches (1.79 cm)
Joints
Bronze ferrule C/W locking screw
Mounting Holes
Dimensions
12 holes equally spaced on a 14.625 inch (36.56 cm) diameter bolt
circle
Storage Temperature
-140
̊
F to +158
̊
F (-95
̊
C to +70
̊
C)
Operating Temperature
-76
̊
F to +140
̊
F (-50
̊
C to +65
̊
C)
Wind Loading Test
Up to 150 mph (240 km/hr) relative
Abrasion Resistance
Very good
Water absorption
After 24 hours immersed: 0.2%
After 48 hours immersed: 0.6%
After 168 hours immersed: 2.0%
V-425 Series Heavy Duty Whip Antenna
VTM-03-016
