Novatel OM-AD-0020

2 - Installation

16 Test Bed Receiver Subsystem Addendum – Rev 1

ACCESSING THE STROBE SIGNALS

A strobe port is located on the enclosure back panel. This is a di agnostic connector and is in the form of a DE9S

connector (see Figure 11). The 1PPS and Measurement pulse from both receiver subsystems are available on this

connector for verifying synchronization using an oscilloscope. These are the only strobe signals made available from the

two receiver subsystems. The specifications and electrical characteristics of these signals are described in Appendix B.

The GPS GLONASS and GPS GEO ports are each connected to a GPS receiver within the Test Bed Receiver unit.

Figure 11 Strobe 9-pin D-Connector Pinout - Test Bed

MSR GPS/GLONASS

MSR GPS/GEO

1 PPS GPS/GLONASS

1 PPS GPS/GEO

GND

Contents

Main Test Bed Receiver Subsystem Addendum Proprietary Notice TABLE OF CONTENTS Page TABLES Page FOREWORD SCOPE PREREQUISITES 1 INTRODUCTION THE NOVATEL TEST BED RECEIVER 1 - Introduction Test Bed Receiver Subsystem Addendum Rev 1 9 OPERATIONAL OVERVIEW L1/L2-I L1/L2-II GEO Processing Single Frequency GPS GLONASS Dual Frequency GPS GEO Other Outputs & Inputs 2 INSTALLATION OF TEST BED RECEIVER MINIMUM CONFIGURATION INTERNAL AND EXTERNAL OSCILLATORS CONNECTING THE EXTERNAL FREQUENCY REFERENCE CONNECTING DATA COMMUNICATIONS EQUIPMENT DCD RXD TXD DTR GND DSR RTS CTS NC CONNECTING THE GPS ANTENNA CONNECTING THE EXTERNAL POWER INPUT USING THE 10 MHz OUTPUT SIGNAL Page 3 OPERATION PRE-START CHECK LIST SERIAL PORTS - DEFAULT SETTINGS START-UP INITIAL COMMUNICATIONS WITH THE TEST BED RECEIVER 4 UPDATE OR UPGRADE YOUR GPSCARD UPGRADING USING THE $AUTH COMMAND UPDATING USING THE LOADER UTILITY TRANSFERRING FIRMWARE FILES USING THE LOADER UTILITY A WAAS OVERVIEW B GLONASS OVERVIEW MILLENNIUM-GLONASS GPSCARD X GLONASS SYSTEM DESIGN The Space Segment The Control Segment The User Segment TIME GLONASS TIME VS. LOCAL RECEIVER TIME DATUM FUNCTIONAL OVERVIEW MILLENNIUM-GLONASS GPSCARD SYSTEM Reference Description Reference Description GPS/GLONASS ANTENNA RADIO FREQUENCY (RF) SECTION DIGITAL ELECTRONICS SECTION Page C COMMANDS CONFIG IONOMODEL WAASCORRECTION LOGS RCCA RECEIVER CONFIGURATION D GLONASS COMMANDS AND LOGS GLONASS-SPECIFIC COMMANDS DGLOTIMEOUT Syntax: Options: PZ90TOWGS84 Syntax: Options: Example: PZ90TOWGS84 DEFAULT UNIMPLEMENTED COMMANDS GLONASS-SPECIFIC LOGS CALA/B CALIBRATION INFORMATION CALA Page CALB Format: Message ID = 87 Message byte count = 32 + (16 * 32) GALA/B ALMANAC INFORMATION GALA GALB Format: Message ID = 78 Message byte count = 112 GCLA/B CLOCK INFORMATION GCLA Table 2 Time Status Example: $GCLA,994,149871.00,10787,10.62179349,167.82950123,1121, -3.0544738044739E-007,9,4,00000000*7B,[CR][LF]GCLB GCLB Format: Message ID = 88 Message byte count = 68 GEPA/B EPHEMERIS INFORMATION GEPA Example: $GEPA,991,496487.00,991,495913.00,10787,4,12,83,0,-2.102581933593754E+007 GEPB Format: Message ID = 77 Message byte count = 156 Page OTHER NOVATEL LOGS RCCA RECEIVER CONFIGURATION E TEST BED RECEIVER - TECHNICAL SPECIFICATIONS Page Appendices 50 Test Bed Receiver Subsystem Addendum Rev 1 Default Channel Assignments INDEX