CHPA
S
ERIES
D
OC
.01023245
R
EV
.R
THIS
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1-3
1.2 About This Manual
This manual contains information that describes installation, operation, and maintenance
procedures for the Compact High Power Amplifier (CHPA) series. Because specialized training
is required for some phases of installation and repair, certain parts of this manual are directed
only to trained personnel. Warnings appear at the appropriate points to caution all users of
potential RF or high-voltage hazards.
Each chapter begins with a clearly marked tab; this allows the reader to have rapid access to a
particular section. A “Contents,” “List of Figures,” and “List of Tables” are included at the
beginning of the manual for reference to each section.
Chapter 1, “Introduction
,” contains a brief overall description and a detailed technical
description of the CHPA. The design philosophy and a brief description of the optional features
are also included in this chapter.
Chapter 2, “Unpacking and Installation
,” contains procedures for preparing the site for
installation and unpacking the CHPA. It also describes the steps required to make the
necessary power connections.
Chapter 3, “Interfaces,
” describes the CHPA’s built-in interfaces to external devices; also listed
are detailed descriptions for each connection. The communication protocol and command set
used for computer control of the CHPA are also included in this chapter.
Chapter 4, “Initial Power-On and Checkout
,” describes the TWT (traveling wave tube)
preconditioning procedures, use of the Front Panel to start up and check out the CHPA, and
instructions for configuring the CHPA for the particular site installation; this includes setting
serial port parameters.
Chapter 5, “Operation
,” contains procedures for normal start-up, shutdown, and detailed
operational modes of the CHPA.
Chapter 6, “Preventative Maintenance
,” contains procedures for scheduled maintenance; also
explained are fault and alarm conditions.
Chapter 7, “Drawings and Schematics
,” contains drawings of the various frequency band
CHPAs. It also includes detailed RF schematics and an overall system interconnect drawing.
The Appendices contain additional topics such as “Control Appearance and Content”,
“Replaceable Parts”, “Warranty and Support Information”, “Options and Features”, and
“Optional L-Band BUC” information.
