Valcom VBBA 2-30 Manuel utilisateur

TECHNICAL MANUAL

VTM-98006F

OPERATION AND INSTALLATION

INSTRUCTIONS

HF BROADBAND ANTENNA

MODEL VBBA 2-30

Valcom Limited

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: e[email protected]

VTM-98006F

RECORD OF CHANGES

CHANGE NUMBER DATE TITLE OF BRIEF

DESCRIPTION

ENTERED BY

-- Jan 2001 - Original Issue H.D.

- A - May 2002

- Added additional cable and

connector information

- Fixed minor typing errors

J.S.

- B - Sept 2002

- Deleted reference to LC-N type

and 7/8" Heliax adapters as

being included

- They are options to be ordered

separately by the customer

J.S.

- C - Nov 2003 - Added detail to Figure 4-1 J.S.

- D - Aug 2006 - Change to 7/8 EIA Connector

and related parts HD..

- E - Aug 2007 Added Maintenance Section J.Soper

- F- April 2009 Fixed power rating spec from

2kW to 3kW J.Soper

VTM-98006F

Table of Contents

Section Page

1 GENERAL INFORMATION AND SAFETY PRECAUTIONS ...................1

1-1 General Safety Precautions ..........................................1

1-2 Specific Warnings .................................................1

1-3 Introduction ......................................................2

1-4 Equipment Description .............................................2

1-5 Relationship to Other Equipment .....................................2

1-6 Reference Data ....................................................2

1-7 Equipment Accessories, and Documents Supplied ........................2

2OPERATION ...........................................................6

2-1 Introduction ......................................................6

2-2 Controls and Indicators .............................................6

2-3 Operating Procedures ...............................................6

2-3.1 Operator Turn-on ............................................6

2-3.2 Modes of Operation ..........................................6

2-3.3 Operation Under Interfering Conditions ..........................6

2-3.4 Operator Turn-off ............................................6

2-3.5 Emergency Operation ........................................6

2-3.6 Emergency Turn-off ..........................................6

3FUNCTIONAL DESCRIPTION ............................................7

3-1 Functional Description .............................................7

4INSTALLATION .......................................................8

4-1 Site Information ...................................................8

4-2 Tools and Materials Required ........................................8

4-3 Unpacking and Repacking ...........................................8

4-4 Foundation .......................................................8

4-5 Input Requirements ................................................8

4-6 Installation ......................................................8

4-7 Cables and Connectors .............................................9

4-8 Installation Checkout ..............................................10

5MAINTENANCE ......................................................11

5-1 Preventative Maintenance ..........................................11

5-2 Corrective Maintenance ............................................11

VTM-98006F

LIST OF ILLUSTRATIONS

Figure Page

1-1 Antenna VBBA 2-30 ...............................................3

4-1 Installation Data ..................................................11

LIST OF TABLES

Table Page

1-1 Reference Data ....................................................4

1-2 Equipment and Documents Supplied ...................................5

4-1 Cable and Connector Group Suggestions ..............................10

VTM-98006F

SECTION 1

GENERAL INFORMATION AND SAFETY PRECAUTIONS

1-1 GENERAL SAFETY PRECAUTIONS. The following general safety precautions are not

related to any specificprocedures and therefore do not appear elsewhere in this publication.

These are recommended precautions thatpersonnelmust understand and apply during many

phases of operation and maintenance.

WARNING

Keep away from live circuits. Operating personnel must at all times observe all safety

regulations, to prevent serious injury or death due to electrical shock.

Do not service or adjust alone. Under no circumstances should any person service or adjust

the equipment except in the presence of someone who is capable of rendering aid.

Personnel working with or near high voltages should be familiar with modern methods of

resuscitation.

1.2 SPECIFIC WARNINGS. The following specific precautions are related to inspecting and

removing the antenna.

WARNING

Ensure that the transmitting equipment is de-energized prior to inspection of the antenna.

Make sure the test equipment is properly grounded, to prevent electric shock.

CAUTION

Make sure the antenna is properly supported before removing its mounting hardware.

CAUTION

Do not coat the insulator with any substance; do not paint with lead base paints.

VTM-98006F

1-3 INTRODUCTION. This manual provides general information, operating and functional

description, and installation data for Valcom's VBBA 2-30 broadband antenna.

1-4 EQUIPMENT DESCRIPTION. The VBBA 2-30 Broadband Antenna (see figure 1-1) is a

whip antenna for general use with HF communications equipment. The antenna provides

vertically polarized, omnidirectional azimuth radiation from 2 to 30 MHz when the antenna

is operated with a HF transceiver. It is designed for use under the severe environmental

conditions encountered aboard Naval vessels. It is used for either receiving or transmitting

high frequency signals. The antenna is a two section antenna and is base mounted. The

mounting flange and insulator is a single integral part made from fibreglass.

1-5 RELATIONSHIPTO OTHER EQUIPMENT. The VBBA 2-30 Antenna interfaces with the

HF receiving and transmitting equipment.

1-6 REFERENCE DATA. Table 1-1 lists the reference data for the antenna.

1-7 EQUIPMENT ACCESSORIES, AND DOCUMENTS SUPPLIED. Table 1-2 lists the

equipment and documents supplied.

VTM-98006F

Figure 1-1 Antenna VBBA 2-30

VTM-98006F

Table 1-1 Reference Data

PARAMETER SPECIFICATION

Nomenclature Antenna, VBBA 2-30

Manufacturer 35736

Frequency Range 2-30 MHz

VSWR 2.0:1 Maximum

Polarization Vertical

Power Rating 3 kW

Azimuth Coverage Omnidirectional

Input Connection 7/8 EIA Flange (see Note 1)

Temperature -50ºC to 65ºC (-60ºF to 150ºF)

Wind Velocity 140 mph (224 kph)

Humidity 0 - 100 %

Shock MIL-S-901C Grade A

Vibration MIL-STD-167-1 Type 1

NOTES: 1. For 1 kW operation, an 7/8 EIA to N adapter can be supplied (optional)

Table 1-2 Equipment, Accessories and Documents Supplied

VTM-98006F

QTY

NOMENCLATURE OVERALL DIMENSIONS (INCHES) WEIGHT

(POUNDS)

UNCRATED

CRATED UNCRATED

HEIGHT DIA HEIGHT DIA

1 ANTENNA

VBBA 2-30

P/N VD-97-00061-1

--- --- 421 13.0

Base

260

1 TECHNICAL

MANUAL FOR

VBBA 2-30 ANTENNA

VTM-98006

1 DC-4 ELECTRICAL

INSULATING

COMPOUND

9 MS24693-C140

3/8-16 X .75 L

FLAT HD SCREW

1 MIL-T-22361

ANTI-SEIZE

COMPOUND

1 GROUND STRAP

P/N VC-97-00069-1

1 7/8 EIA to N Type

ADAPTER (ANDREW

PN: 2260B )

(NOTE: Optionally

supplied for 1 kW or less

operation)

1 1/2" HELIAX CABLE

(LDF4-50A)

CONNECTOR

ANDREW P/N: L44R

(NOTE: Optionally

supplied for 1kW or

more operation)

SECTION 2

VTM-98006F

OPERATION

2-1 INTRODUCTION. This chapter provides operating instructions for the antenna.

2-2 CONTROLS AND INDICATORS. The antenna contains no controls or indicators.

2-3 OPERATING PROCEDURES.

2-3.1 Operator Turn-On. No operator turn-on procedures apply since no power is required to

operate the antenna. However, the antenna is coupled to RF equipment

(transmitter/receiver) and to associated systems which may require energizing. For

operating instructions, consult the appropriate technical manuals.

2-3.2 Modes of Operation. The antenna operates automatically, and no operator intervention is

required other than interconnecting the associated transmitter or receiver with the

antenna.

2-3.3 Operation Under Interfering Conditions. No additional or alternate instructions are

necessary to operate the antenna under interfering conditions.

2-3.4 Operator Turn-off. Since no power is required to operate the antenna, no operator turn-

off is required. However, the specific equipment connected to the antenna may require

operator turn-off. Consult the associated technical manuals for turn-off procedures.

2-3.5 Emergency Operation. No additional or alternate steps are necessary to operate the

antenna under emergency conditions.

2-3.6 Emergency Turn-off. The antenna requires no emergency turn-off. For emergency turn-

off of specific equipment connected to the antenna, consult the associated technical

manuals.

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