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VTM-05-005F RECORD OF CHANGES CHANGE NUMBER DATE TITLE OF BRIEF ENTERED BY DESCRIPTION - A - Dec 2005 Original Issue J.S. - B - Feb 2006 Changed antenna from 18ft to 24ft J.S. Added 19ft antenna information and - C - Mar 2006 J.S.
VTM-05-005F Table of Contents Section Page GENERAL INFORMATION AND SAFETY PRECAUTIONS ......1 General Safety Precautions ..........1 Specific Warnings .
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VTM-05-005F LIST OF ILLUSTRATIONS Figure Page Antenna VBBA 2-30 ..........3 Outline Drawing .
VTM-05-005F SECTION 1 GENERAL INFORMATION AND SAFETY PRECAUTIONS GENERAL SAFETY PRECAUTIONS. The following general safety precautions are not related to any specific procedures and therefore do not appear elsewhere in this publication. These are recommended precautions that personnel must understand and apply during many phases of operation and maintenance.
INTRODUCTION. This manual provides general information, operating and functional description, and installation data for Valcom's VBBA2-30-18 broadband antenna. EQUIPMENT DESCRIPTION. The VBBA2-30-18 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 5 to 30 MHz when the antenna is operated with a HF transceiver.
VTM-05-005F SECTION 2 OPERATION INTRODUCTION. This chapter provides operating instructions for the antenna. CONTROLS AND INDICATORS. The antenna contains no controls or indicators. 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.
VTM-05-005F SECTION 3 FUNCTIONAL DESCRIPTION FUNCTIONAL DESCRIPTION. The VBBA2-30-18 Broadband Antenna is a base mounted, high-power antenna which provides omnidirectional coverage for general purpose communications use from 5 to 30 MHz. The antenna consists of a radiating element, and a fibreglass base insulator/mounting flange.
VTM-05-005F SECTION 4 INSTALLATION SITE INFORMATION. Valcom's VBBA2-30-18 HF Antenna is designed primarily for shipboard installation. The antenna can also be used at shore installations. The antenna should be installed in a non-obstructed environment, clear from any contiguous structures, such as masts, bulkheads, or other metal objects.
VTM-05-005F e. The VBBA2-30-18 antenna input is an 7/8 EIA Flange and is found on the base insulator below the drip shields. Prior to connecting the system feedline, ensure the equipment has been de-energized and proper lock out procedures followed. Once the lockout procedures have been performed, connect the system feedline to the antenna.
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VTM-05-005F 4.0 IN (10.2 CM) GROUND STRAP CONNECTION INPUT (AS SHORT AS POSSIBLE) CONNECTOR - VIEW A - VIEW A 5/8-11 UNC SST HEX-HEAD BOLT 5/8" FLAT WASHER (X2) 5/8" LOCK WASHER 5/8-11 UNC HEX NUT (LENGTH DEPENDS ON MTG PLATE) 8 HOLES 0.69 IN (1.75 CM) DIA EQUALLY SPACED ON A 10.75 IN 13.0 IN...
VTM-05-005F SECTION 5 MAINTENANCE Scheduled Maintenance The antenna is virtually maintenance free. The external finish is a silicone alkyd paint. The minimum finish life before showing signs of deterioration should be at least six years under normal climate conditions. When used in salt-water environments, it is recommended to wash the antenna base with fresh water to remove any build-up of dried salt residue.
VTM-05-005F 5-2.2 Cosmetic Repairs The antenna has been designed to meet and tested to pass Naval Shock and Vibration requirements (MIL-S-901 and MIL-STD-167 respectively). Under and beyond normal expected environmental stresses onboard ships, this antenna will not suffer mechanical or electrical failure.
SECTION 6 QUICK REFERENCE DATA General Manufacturer’s contact information can be found in Section 6-2. Manufacturer's Address Postal address: Shipping address: Valcom Manufacturing Group, Inc Valcom Manufacturing Group, Inc P.O. Box 603 175 Southgate Drive Guelph, Ontario Guelph, Ontario Canada...