Nautel ND2000A-02x-xx0 Series, Технические инструкции

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500 WATT RADIOBEACON TRANSMITTER
ND2000A-02x-xx0
Contents (Page 4)
15 January 2005
TABLE OF CONTENTS
(Continued)
Section Page
3 INSTALLATION AND PREPARATION FOR USE (Continued)
3.7.5 MEAN LEVEL OF AC POWER SOURCE............................................................................ 3-5
3.8 PARTS REQUIRED BUT NOT SUPPLIED......................................................................... 3-6
3.8.1 OSCILLATOR CRYSTALS ................................................................................................... 3-6
3.9 PRE-INSTALLATION PROCEDURES................................................................................ 3-6
3.9.1 DISASSEMBLY REQUIRED ................................................................................................ 3-6
3.9.2 EXCITER MODULE PRE-INSTALLATION.......................................................................... 3-6
3.9.2.1 RF Synthesizer PWB...................................................................................................... 3-6
3.9.2.2 RF Oscillator PWB.......................................................................................................... 3-6
3.9.3 KEYER PWB PRE-INSTALLATION..................................................................................... 3-7
3.9.3.1 Keyer Content Configuration.......................................................................................... 3-7
3.9.3.2 Keyed Tone Frequency.................................................................................................. 3-8
3.9.3.3 Keyed Tone Source........................................................................................................ 3-8
3.9.3.4 Keyed Fault Inhibit.......................................................................................................... 3-8
3.9.4 POWER TRANSFORMERS A7T1 and A8T1 PRIMARY TAP SELECTION...................... 3-8
3.9.5 HARMONIC FILTER PRE-INSTALLATION......................................................................... 3-9
3.10 INSTALLATION PROCEDURES....................................................................................... 3-11
3.10.1 TRANSMITTER MODULE INSTALLATION ...................................................................... 3-11
3.10.1.1 Power Supply Modules A7/A8...................................................................................... 3-11
3.10.1.2 Modulator/Power Amplifier Modules ............................................................................ 3-11
3.10.1.3 Exciter Modules ............................................................................................................ 3-11
3.10.2 EXTERNAL INPUT/OUTPUT INTERFACE CONNECTIONS........................................... 3-12
3.10.3 RF OUTPUT CABLE CONNECTION................................................................................. 3-12
3.10.4 LIGHTNING/SAFETY GROUND CONNECTION.............................................................. 3-12
3.10.5 AC AND DC POWER CONNECTION................................................................................ 3-12
3.11 FIRST STAGE (INITIAL START-UP)................................................................................. 3-13
3.12 SECOND STAGE (INITIAL START-UP) ........................................................................... 3-13
3.13 THIRD STAGE (INITIAL START-UP)................................................................................ 3-14
3.13.1 INTENDED CARRIER LEVEL............................................................................................ 3-14
3.13.2 RF MONITOR SIGNAL SOURCE SELECTION ................................................................ 3-14
3.13.3 INTENDED MODULATION DEPTH................................................................................... 3-14
4 OPERATING INSTRUCTIONS
4.1 GENERAL ............................................................................................................................ 4-1
4.2 EMERGENCY SHUTDOWN PROCEDURE ....................................................................... 4-1
4.3 CONTROLS AND INDICATORS ......................................................................................... 4-1
4.3.1 CONTROL/MONITOR PANEL CONTROLS AND INDICATORS....................................... 4-1
4.3.2 RF POWER MODULES CONTROLS AND INDICATORS ................................................. 4-1
4.3.3 EXCITER MODULE CONTROLS AND INDICATORS........................................................ 4-1
4.3.4 POWER ON/OFF PANEL CONTROLS AND INDICATORS .............................................. 4-1
4.3.5 POWER SUPPLY MODULE CONTROLS AND INDICATORS.......................................... 4-1
4.3.6 HARMONIC FILTER CONTROLS ....................................................................................... 4-1
4.3.7 MONITOR PWB CONTROLS AND INDICATORS.............................................................. 4-1
4.3.8 BATTERY PANEL CONTROLS AND INDICATORS .......................................................... 4-1
4.3.9 MISCELLANEOUS (CABINET/INTERFACE PANEL) CONTROLS AND INDICATORS .. 4-2
4.4 PRESTART-UP CHECKS .................................................................................................... 4-2
4.5 TURNING ON TRANSMITTER ............................................................................................ 4-2
4.6 RESETTING TRANSMITTER .............................................................................................. 4-2
4.7 MODULATION DEPTH WHEN USING A HIGH 'Q' ANTENNA ........................................ 4-2
4.7.1 RF CURRENT ALARM INDICATION................................................................................... 4-3