Nautel FM10, Технические инструкции

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10 000 WATT FM BROADCAST TRANSMITTER
FM10
Page 1-1
15 July 1997
SECTION 1
GENERAL INFORMATION
INTRODUCTION
1.1
The FM10 FM broadcast transmitter is a
totally solid state, VHF, frequency modulated,
broadcast transmitter. The transmitter contains six
RF power modules, one intermediate power amplifier
module and an AC/DC power supply consisting of
seven switching power supply modules. The exciter,
which is a separate item, may be installed in the
transmitter or externally mounted. The transmitter
operates at one preset frequency, in the FM broadcast
frequency band, into a nominal 50 ohm, unbalanced,
transmission line. Typically the transmitter will
operate continuously at 11 000 watts. Remote
control interfacing is a standard feature.
FACTORY SUPPORT
1.2
Nautel provides after sales factory support.
Technical assistance is available on a 24 hour, seven
days a week basis. A factory service facility for
repair of modules/assemblies is also available. Refer
to the
Factory Support
portion of the
Warranty
pages at the front of this manual for additional
information.
PURPOSE AND SCOPE OF MANUAL
1.3
This manual, referred to as the Technical
Instruction Manual , provides the information
required to install, operate and maintain the
transmitter. Detailed information for modules/
assemblies, normally removed from the transmitter
for servicing, is not included in the
Technical
Instruction Manual . Service Instruction Manual
appendices provide information necessary for
troubleshooting and maintaining bench-repairable
modules/assemblies used in the transmitter.
1.3.1 FAMILY TREE: The family tree for this
transmitter is depicted in figures 8-1A and 8-1B. It
identifies the major assemblies and shows their
hierarchical assembly relationship. It also identifies
the reference designation assigned to each assembly
and where their parts list is located.
PURPOSE OF EQUIPMENT
1.4
FM10 transmitters are intended to be used
in conventional FM broadcasting stations. Remote
control facilities are incorporated to allow unattended
operation from a remotely located station studio.
MECHANICAL DESCRIPTION
1.5
The FM10 transmitter's modules/
assemblies are housed in one cabinet. Figure MD-1
through MD-15 provide assembly detail and identify
the location of all electrical parts. The mechanical
drawings are presented in order of the reference
designation assigned to their assemblies. Refer to the
list of drawings on page 11-1 to locate a specific
illustration.
NOTE
Some modules/assemblies may have an alpha suffix
on their designator (A, B, C, etc.). The suffix is
assigned alphabetically and indicates the module
contains minor component or circuit variations.
Since a change that merits an alpha suffix change
will normally enhance the operation of the affected
module/assembly or compliment the operation of an
external circuit, it is not recommended that later
versions be interchanged with earlier versions. All
earlier versions can be replaced by later versions.
TECHNICAL SUMMARY
1.6
Table 1-1 - Technical Summary, contains a
detailed technical summary.
SPECIAL TOOLS AND TEST EQUIPMENT
1.7
Table 1-3 - Special Tools, lists the special
tools required. Table 1-2 - Test Equipment, lists the
test equipment required for operation and
maintenance.
GLOSSARY OF TERMS
1.8
Table 1-4 - Glossary of Terms, provides a
list of all unique terms, abbreviations and acronyms
used in this publication.