GPS 101 and Acronyms

Global Positioning Systems are locators and navigators that work based on satellite signals. A GPS is capable of tracking in real time, as close as meters and centimeters by determining the latitude, longitude and altitude of the specified target.

The GPS has many functions that can give you peace of mind and a feeling of security. Many people currently use the GPS for navigating in traffic, recovering lost or stolen vehicles, keeping track of vehicle fleets and for safety assurance of loved ones and possessions.

  • AC - Alternating Current
  • A/D - Analog-to-Digital
  • ADC - Analog-to-Digital Converter
  • AD - Accumulated Doppler Range
  • ADR - Accumulated Delta Range
  • AGC - Automatic Gain Control
  • AK - Authentication Key
  • AL - Alarm Limit
  • AltBOC - Alternate Binary Offset Carrier
  • AMSAT - American Satellite
  • APC - Aircraft Power Conditioner
  • ARNS - Aeronautical Radio Navigation Services
  • ARP - Antenna Reference Point
  • AS - Anti-Spoofing
  • ASCII - American Standard Code for Information Interchange
  • ASIC - Application Specific Integrated Circuits
  • AVL - Automated Vehicle Locations
  • BCD - Binary Code Decimal
  • BDE - Borland Database Engine
  • BDS - Black Diamond System
  • BFS - Broadband Fiber Source
  • BNR - Binary Numerical Representation
  • BPS - Bits per Second
  • BSG - Base-band Signal Generator
  • BW - Bandwidth
  • CAN - Controller Area Network
  • CASM - Coherent Adaptive Sub carrier Modulation
  • CBIT - Continuous Built In Test
  • CCITT - Command, Control, and Intelligence Technical Test
  • CDGPS - Canada-Wide Differential Global Positioning System
  • CDMA - Code Division Multiple Access
  • CDPD - Cellular Digital Packet Data
  • CDU - Control and Display Unit
  • CFGP - Configuration Parameters
  • CISPR - International Special Committee On Radio Interference
  • COG - Course Over Ground
  • COGO - Coordinate Geometry
  • CPLD - Complex Programmable Logic Device
  • CPU - Central Processing Unit
  • CRR - Common Reference Receiver
  • CSIC - Coordination Scientific Information Center
  • CTS - Clear To Send
  • CW - Continuous Wave
  • DC - Direct Current
  • DCD - Data Carrier Detected
  • DGNSS - Differential Global Navigation Satellite System
  • DGPS - Differential Global Positioning System
  • DLL - Delay Lock Loop
  • DOP - Dilution Of Precision
  • D/U - Desired/Undesired
  • E-L - Early to Late
  • ECEF - Earth-Centered-Earth-Fixed
  • ESN - Electronic Serial Number
  • FDA - Frequency Distribution Amplifier
  • FEC - Forward Error Correction
  • FTP - File Transfer Protocol
  • FTS - Frequency and Time Standard
  • GMS - Ground Mission Segment
  • GUS - Ground Uplink Station
  • ICD - Interface Control Document
  • IF - Intermediate Frequency
  • IGP - Ionosphere Grid Point
  • LSB - Least significant bit
  • MPC - Modulated Precision Clock
  • PIN - Position Indicator
  • PLL - Phase Lock Loop
  • PPM - Parts Per Million
  • PV - Position Valid
  • RF - Radio Frequency
  • RFDC - Radio Frequency Direct Current
  • RFU - Radio Frequency Uplink
  • RM - Raw Measurements
  • ROM - Read Only Memory
  • RTC - Real-Time Clock
  • RXD - Received Data
  • SAR - Search and Rescue
  • SARSAT - Search and Rescue Satellite Aided Tracking
  • TOW - Time of Week
  • TTL - Transistor-Transistor Logic
  • TXD - Transmitted Data
  • VARF - Variable Frequency
  • WPT - Waypoint3/5/2009