TECHNICAL MANUAL
OPERATION AND INSTALLATION
INSTRUCTIONS
V147-CL2 ANTENNA
Document No: VTM-04-006A
Valcom Manufacturing Group, Inc.
175 Southgate Drive, P.O.Box 603, Guelph, Ontario, Canada N1H 6L3 Tel: 519-824-3220 Fax: 519-824-3411
Web Site: www.valcom-guelph.com Email: enquiries@valcom-guelph.com
V147-CL2
REVISION SHEET
Revision Description Date User
- Original Issue November 11, 2004 -
A Amended Maintenance Section August 2007 J.Soper
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VTM-04-006A
V147-CL2
TABLE OF CONTENTS
Section Page
1.0 GENERAL INFORMATION .............................................. 1
1.1 Introduction ..................................................... 1
1.2 Technical Reference Data .......................................... 1
2.0 FUNCTIONAL DESCRIPTION ............................................ 3
2.1 General ......................................................... 3
2.2 Electrical Description .............................................. 3
2.3 Mechanical Description ............................................ 3
3.0 MAINTENANCE ........................................................ 4
3.1 Scheduled Maintenance ............................................ 4
3.2 Corrective Maintenance ............................................ 4
4.0 INSTALLATION ........................................................ 5
4.1 Unpacking ...................................................... 5
4.2 New Site Preparation .............................................. 5
4.3 Assembly and Installation .......................................... 5
4.4 Electrical Installation .............................................. 6
5.0 PARTS LIST ............................................................ 8
5.1 General ......................................................... 8
6.0 QUICK REFERENCE DATA .............................................. 9
6.1 General ......................................................... 9
6.2 Manufacturer's Address ............................................ 9
LIST OF TABLES AND FIGURES
Table 1.1 - Electrical properties of the V147-CL2 Antenna .............................1
Table 1.2 - Mechanical properties of the V147-CL2 Antenna ............................2
Table 5.1 - List of Parts for the V147-CL2 Antenna .................................. 8
Figure 4.1 - Gin Pole Arrangement ............................................... 7
Figure 6.1 - Quick Reference Data - V147-CL2 Antenna ..............................10
Figure 6.2 - Foundation Details For VHB-17 Hinge Plate or VTGS-20BH Steel Tower ......11
Figure 6.3 - Quick Reference Data - VHB-17 Hinge Plate .............................12
Figure 6.4 - Quick Reference Data - VTGS-20BH Steel Tower .........................13
Figure 6.5 - Quick Reference Data - VGS-36100 Ground Screen ........................14
Figure 6.6 - Quick Reference Data - VGS-36100 Ground Screen Installation Instructions ....15
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VTM-04-006A
1.0 GENERAL INFORMATION
1.1 Introduction
This manual describes the electrical and mechanical properties of the V147-CL2 antenna.
It also provides the information necessary to install, operate and maintain the antenna
system.
1.2 Technical Reference Data
Table 1.1 - Electrical properties of the V147-CL2 Antenna
Electrical Properties
V147-CL2
Frequency Range
Resonant Frequency
Power Rating
Dry Withstanding Voltage
Electrical Length
100 kHz to 30 MHz (with capacity of the antenna
tuner)
100 kHz to 5000 kHz (as specified by customer)
1 kW PEP
25 kV
Varies with Loading Coil Section
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VTM-04-006A
V147-CL2
Table 1.2 - Mechanical properties of the V147-CL2 Antenna
Mechanical Properties
th
Section Length
3
Loading Coil (2nd) Section Length
Bottom Section Length
Typical Assembly Length
(including Valcosphere)
Weight
Material
Finish
Mounting Position
Base Diameter
Mounting Hole Diameter
Mounting Holes Dimensions
13.0 feet (3.9 meter)
18.5 feet (5.6 meter)
17.5 feet (5.3 meter)
49 feet (14.9 meter)
Approximately 400 lbs (181 kg)
Copper wire and strips embedded in the fiberglass and
thermo-setting epoxy resin composite
Epoxy polyamide paint
Vertical
17.5 inches (44.45 cm)
0.718 inches (1.82 cm)
12 places equally spaced on a 14.625 inch (37.15 cm)
diameter bolt circle
Operating Temperature
Wind Loading Test
Abrasion Resistance
Water Absorption
Optional Accessories
-76°F to +140°F (-50°C to +65°C)
Up to 150 mph (240 km/hr) relative
Very Good
After 24 hours immersed: 0.2%
After 48 hours immersed: 0.6%
After 168 hours immersed: 2.0%
Top-Hat Whiskers
Side-feed or Feed-through base
VHB-17 Steel Hinge Plate or VTGS-20BH Steel
Tower
VGP-17 Gin Pole
VGS-36100 Ground Screen
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VTM-04-006A
2.0 FUNCTIONAL DESCRIPTION
2.1 General
The V147-CL2 is intended to be used as part of an overall communication system which
consists of a transmitter (or receiver or transceiver), an antenna coupler and the antenna.
It is used around the world in many applications with requirements in the 100 kHz to
5000 kHz bands for marine and aeronautical radio beacon and, with Top-Hat radials, as a
Traveler Information Service (TIS) communication systems.
2.2 Electrical Description
The Valcom, Model V147-CL2 is a field proven, coil loaded, 49-foot antenna. The
second section is inductively loaded to a resonant frequency slightly higher than the
operating frequency specified by the customer.
2.3 Mechanical Description
Third Section. This is a hollow tapered cylinder made of circumferentially and
longitudinally wound fibreglass filaments using a thermosetting epoxy resin matrix.
Embedded in the composite are multiple beryllium copper strips laid in a single-turn
spiral and secured at the top end to a threaded female ferrule into which the Valcosphere
is secured. Depending on the options chosen, there may be up to eight whiskers that
thread into the Valcosphere ferrule to form the Top-Hat structure. The surface of the
section is smoothed, primed and painted with a polyamide epoxy surface coating.
V147-CL2
Coil Loaded Section (Second Section) The coil loaded section is constructed in the
same manner as the Third section. The coil is wound using enamel copper wire and is
also embedded in the fiberglass. The ends of the coil are braised to the respective
ferrules.
Bottom Section. The construction and finish are the same as for the other sections
except that the diameter expands out to meet the mounting base. The ferrule is threaded
to fit into the bottom of the Coil Loaded section. Multiple parallel conductors are
connected to the ferrule at the top and to a conducting ring near the bottom. The feed
terminal extends from the bottom ring to the surface of the antenna approximately 18.0
inches from the bottom of the base flange. The base can withstand a flash-over voltage of
25 kV.
NOTE: The sections of the antenna cannot be interchanged with other antennas
due to the unique locations of the locking screw holes.
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VTM-04-006A
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