jotron Tron 40GPS MkII, User Manual

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82819_UM_40SMkII_H
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10
GLOBAL POSITIONING SYSTEM (GPS)
The NAVSTAR Global Positioning System, which consists of orbiting satellites, a
network of ground control stations, and user positioning and navigation equip-
ment. The system has 24 satellites plus 3 active spare satellites in six orbital
planes about 20,200 kilometers above the earth.
GPS
Global Position System
GPS SYSTEM TIME
Time corrected to Universal Time Coordinated (UTC) and used as the time
standard by the user segment of the GPS system.
IEC
International Electro-technical Commission.
IMO
International Maritime Organization
INTERFACE
Electronic circuits that permit the passage of data between different types
of devices; For example, the speed and heading interface circuit permits data
from a speed log and compass to pass to the navigator processor.
ITU
International Telecommunication Union.
LED
Light Emitting Diode.
LUT
Local User Terminal (Ground Station).
MCC
Mission Control Centre.
PROCESSOR
The processor circuit card in the console that controls system operations and
computes the positioning/navigation solutions.