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Glossary 47
Glossary
Term Meaning
° degrees
AAmps
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