SECTION I
GENERAL INFORMATION
1.1. Introduction
1.1.1. Scope And Purpose
This technical manual contains the infor-
mation necessary to install and maintain the
GATES Series™ AM Transmitters. The
various sections of this technical manual
provide the following types of information.
Section I, General Information, pro-
vides introduction to technical man-
ual contents.
Section II, Installation/operation, pro-
vides detailed installation and opera-
tion procedures.
Section III, Maintenance, provides
preventive and corrective mainte-
nance as well as tuning procedures
(alignment procedures).
Section IV, Troubleshooting, pro-
vides a listing of the protection de-
vices in the transmitter as well as
troubleshooting procedures.
Section V, Transmitter Overall, pro-
vides theory of operation of the vari-
ous sections of the transmitter not
covered in later sections.
Section VI, Parts List, provides parts
list for the transmitter.
The following sections provide principles
of operation, maintenance information,
troubleshooting, andpartslists forboards in
GATES Series™ transmitter:
Section A, Oscillator
Section B, IPA
Section C, Power Amplifier
Section D, Output Network
Section E, Output Monitor
Section F, PDM Generator
Section G, PDM Amplifier/Pull-Up
Section H, PDM Filter
Section J, Controller
Section K, Interface Board
Appendix L, Test Equipment, pro-
vides a list of the test equipment pro-
vided and recommended to perform
maintenance on the transmitter.
1.2. Specifications
Table 1-1, 1-2, and 1-3 list the specifica-
tions of the GATES Series™ transmitters.
NOTE
Specifications subject to change without
notice.
Rev. T: Jan. 1996 888-2314-001 1-1
WARNING: Disconnect primary power prior to servicing.
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