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TABLE OF CONTENTS SECTION 1 - INTRODUCTION........................................................... 1 HOW TO USE THIS MANUAL ................................................................................ 1 THE GLOBAL POSITIONING SYSTEM (GPS)............................................................. 1 INTRODUCTION TO THE INTELLIGENT REFERENCE/TM-4™........................................ 2 SECTION 2 - UNPACKING AND INSTALLATION................................ 6 PACKING LIST ..................................................................................................... 6 ANTENNA INSTALLATION..................................................................................... 6 INTELLIGENT REFERENCE/TM-4™ INSTALLATION ..................................................... 7 CONNECTION TO A PERSONAL COMPUTER ........................................................... 7 POWER INPUT .................................................................................................... 7 SECTION 3 - QUICK START INSTRUCTIONS ..................................... 9 SECTION 4 - OPERATING MODES AND FUNCTIONS ....................... 11 START-UP SEQUENCES.......................................................................................11 OSCILLATOR MODES ..........................................................................................12 TIMING MODES..................................................................................................12 MASK ANGLE ....................................................................................................13 MAP DATUMS ...................................................................................................13 USER TIME BIAS.................................................................................................14 ASCII SERIAL TIME/NTP/NMEA MESSAGES............................................................14 EVENT TIME-TAG (ETT)........................................................................................15 PROGRAMMED OUTPUT PULSE (POP)..................................................................16 HARDWARE FAULT MONITORING ........................................................................16 IRIG OR OTHER SERIAL TIME CODE OPTION ..........................................................17 NETWORK TIME PROTOCOL OPTION....................................................................17 AUXILIARY FREQUENCY OUTPUT OPTION .............................................................17 SYNTHESIZED TIMING PULSE OUTPUT OPTION .....................................................18 ACCURACY CONSIDERATIONS.............................................................................18 OPERATING SUGGESTIONS .................................................................................21 STAND-ALONE OPERATION .................................................................................21 MASTER RESET..................................................................................................22 SECTION 5 - OPERATION OF THE INTELLIGENT REFERENCE/TM-4™ 23 SOFTWARE OVERVIEW .......................................................................................23 COMPUTER REQUIREMENTS ...............................................................................23 INITIALIZATION FILE ............................................................................................23 MAIN SCREEN....................................................................................................24 RECEIVER STATUS PANEL ...................................................................................24 TIME AND DATE PANEL ......................................................................................26 POSITION DATA PANEL.......................................................................................26 TIMING STATUS PANEL.......................................................................................27 ALARMS AND INDICATORS PANEL.......................................................................27 OPERATIONAL SESSION......................................................................................28 START-UP..........................................................................................................28 SETTING OPTIONS..............................................................................................29 EVENT TIME-TAG OPERATION ..............................................................................29 PROGRAMMED OUTPUT PULSE OPERATION .........................................................30 REMAINING OPERATIONS....................................................................................30 iii