Glossary
47
Glossary
Term
Meaning
°
degrees
A
Amps
AST
(Advanced Steering
Technology)
AST (Advanced Steering Technology) is Raymarine’s unique advanced
steering algorithm. It uses inputs from a wide variety of sensors to tune the
autopilot’s operation to provide superior control of the boat in any condition.
AutoLearn
Self-learning calibration feature available on Type 150G and Type 400G
course computers.
AWG
American Wire Gauge
CE
Marked on products that comply with defined European Community
standards
CR pump
Constant Running hydraulic pump
EMC
(Electromagnetic
Compatibility)
When powered up, all electrical equipment produces electromagnetic fields.
These can cause adjacent pieces of electrical equipment to interact with one
another, and this can degrade their performance. By following the EMC
guidelines in this handbook, you can minimize these effects by ensuring
optimum Electromagnetic Compatibility (EMC) between equipment.
Fluxgate
Standard Raymarine compass supplied with course computer core pack
ft
foot (1 ft = 305 mm)
GPS
Global Positioning System
GyroPlus
Raymarine’s GyroPlus yaw sensor that measures the boat’s rate of turn. It is
built into the Type 150G and Type 400G course computers.
Hz
Hertz (cycles per second)
I/O drive
Inboard/Outboard or stern drive
in
inch (1 in = 25.4 mm)
kg
kilograms (1 kg = 2.2 lb)
lb
pound (1 lb = 0.45 kg)
m
metre (1 m = 39.4 inches)
MARPA
Mini Automatic Radar Plotting Aid
mm
millimeter (1 mm = 0.04 inches)
NMEA
The NMEA (National Maritime Electronics Association) protocol is an
internationally accepted serial communication interface standard for
sharing data between electronic equipment. Raymarine products can share
information with non-SeaTalk equipment using the NMEA 0183 protocol.
81173_3.book Page 47 Thursday, June 7, 2001 11:51 AM
