User's Manual

3300-Watt VHF Low Band Transmitter Chapter 1, Introduction
335B, Rev. 0 1-1
Chapter 1
Introduction
This manual explains the installation,
setup, alignment, and maintenance
procedures for the 335B 3300-watt solid
state VHF Low Band transmitter. It is
important that you read all of the
instructions, especially the safety
information in this chapter, before you
begin to install or operate the unit.
1.1 Manual Overview
This instruction manual is divided into
five chapters and supporting appendices.
Chapter 1, Introduction, contains
information on the assembly numbering
system used by Axcera, safety, contact
information, return procedures, and
warranties. Chapter 2, System
Description, Maintenance and Remote
Control Connections, describes the
transmitter and includes discussions on
system control and status indicators,
maintenance and remote control
connections. Chapter 3 Installation and
Set Up Procedure, explains how to
unpack, install, setup, and operate the
transmitter. Chapter 4, Circuit
Descriptions, contains a detailed
discussion of the circuits and boards that
make up the 335B. Chapter 5, Detailed
Alignment Procedures, provides
information on adjusting the system and
trays to achieve peak operation of the
transmitter and assemblies. The
appendices contain system
specifications, a sample log sheet, typical
operational readings, interconnects,
schematics, assembly and subassembly
drawings and parts lists.
1.2 Assembly Designation Procedure
Axcera has assigned assembly numbers,
such as Ax (x=1,2,3…), to all assemblies,
trays, subassemblies, and boards that
make up the 335B. The assembly
numbers are referenced to in the text of
this manual and shown on the block
diagrams and interconnect drawings
provided in the appendices. These
supporting documents are arranged in
increasing numerical order in the
appendices. Section titles in the text for
assembly, tray descriptions and
alignment procedures also indicate the
associated drawing(s) and the relevant
appendix that contains the drawing.
Sections describing vendor-supplied
items, such as meters and power
supplies, do not contain this information.
1.3 Safety
The transmitters manufactured by Axcera
are designed for ease of operation and
repair while providing protection from
electrical and mechanical hazards. Listed
throughout the manual are notes,
cautions, and warnings concerning
possible safety hazards that may be
encountered while operating or servicing
the transmitter. Please review these
warnings and familiarize yourself with the
operation and servicing procedures
before attempting to maintain or repair
the transmitter.
Read All Instructions – All of the
operating and safety instructions should
be read and understood before operating
this equipment.
Retain Manuals – An instruction manual
provided with the transmitter should be
retained at the transmitter site for future
reference. Axcera provides two
instruction manuals for this purpose; one
manual can be left at the office while the
other can be kept at the site.
Heed all Notes, Warnings, and
Cautions – The avoid injury or damage
to the equipment, all of the notes,
warnings, and cautions listed in this
safety section and throughout the
manual must be followed.