Marti Electronics STL-10A, Technical Manual

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TECHNICAL MANUAL
MARTI ELECTRONICS
STL-10A BROADCAST STL TRANSMITTER
TABLE OF CONTENTS
DESCRIPTION PAGE NO.
INTRODUCTION – STL–10A 1
SPECIFICATIONS 3
UNPACKING AND INSPECTING 5
INSTALLATION 5
STL–10A TRANSMITTER INSTALLATION 5
ANTENNA INSTALLATION 6
STL ANTENNA INSTALLATION CHECKLIST 6
ANTENNA ASSEMBLY 6
TRANSMISSION LINE CONNECTOR ASSEMBLY 6
MOISTURE PROOFING COAX CONNECTORS AND FITTINGS 6
LOCATION AND GROUNDING OF COAXIAL CABLE 7
SYSTEM GROUNDING 7
ANTENNA INSTALLATION AND ADJUSTMENT 7
OPERATION 7
SWITCH AND METER FUNCTIONS 7
TRANSMIT–OFF SWITCH AND LED 7
FORWARD–REFLECTED SWITCH AND RF POWER METER 8
PEAK MODULATION METER 8
TEST METER 8
PRE–EMPHASIS SWITCHES 9
FREQUENCY MEASUREMENT 9
STL–10A PERFORMANCE TESTS 9
NOISE 10
DISTORTION 10
FREQUENCY RESPONSE 10
STL–10A THEORY OF OPERATION 10
POWER SUPPLY 800–168 10
INPUT/OUTPUT FILTER 800–193A 10
CONTROL BOARD 800–197 10
AUDIO BOARD 800–194 11
MODULATOR 800–195 11
MULTIPLIER BOARD 800–163 11
RF POWER AMPLIFIER 800–374B AND 800–373B 11
DUAL LINK STEREO STL 11
TEST EQUIPMENT 14
TOOLS FOR ALIGNMENT OF STL–10A SERIES TRANSMITTERS 14
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Marti Electronics 2000
ALL RIGHTS RESERVED
Printed in the U.S.A.