User`s guide

Table of Contents
CHAPTER 1 – INTRODUCTION 1
OVERVIEW 2
M12+ Positioning Receiver 2
M12+ Timing Receiver 2
PRODUCT HIGHLIGHTS 3
APPLICATIONS 4
LIMITED WARRANTY ON MOTOROLA GPS PRODUCTS 5
How to Get Warranty Service 6
CHAPTER 2 - NAVSTAR GPS OVERVIEW 7
ABOUT THE GPS NAVIGATION MESSAGE 8
Space Segment 8
Ground Control Segment 8
User Segment 8
Additional Information Sources 10
CHAPTER 3 - RECEIVER DESCRIPTIONS 11
OVERVIEW 12
Memory Backup 13
Operating With a Backup Source 13
Operating Without a Backup Source 14
Antenna Drive and Protection Circuitry 15
Active Antenna Configuration 17
M12+ Receiver Electrical Connections 17
M12+ Nominal Voltage and Current Ranges 18
Main Power 18
Backup Battery (Externally applied backup power) 18
M12+ ONCORE RECEIVER TECHNICAL CHARACTERISTICS 20
M12+ TIMING RECEIVER TECHNICAL CHARACTERISTICS 21
RF Jamming Immunity (M12+ Timing Receiver Only) 22
Adaptive Tracking Loops (M12+ Timing Receiver Only) 22
Time RAIM Algorithm (M12+ Timing Receiver Only) 22
Motorola GPS Products - M12+ User's Guide Revision 6.X 09FEB05