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Glossary
Term
Meaning
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
Selflearning calibration feature available on TillerPilot and gyro upgraded
WheelPilot systems.
AWG
American Wire Gauge
CE
Marked on products that comply with defined European Community stan
dards
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 guide
lines in this handbook, you can minimize these effects by ensuring optimum
Electromagnetic Compatibility (EMC) between equipment.
Fluxgate
Standard Raymarine compass supplied with core pack
GPS
Global Positioning System
GyroPlus
Raymarine’s GyroPlus yaw sensor that measures the boat’s rate of turn.
Fitted as standard to the TillerPilot.
Optional upgrade for the WheelPilot.
Hz
Hertz (cycles per second)
I/O drive
Inboard/Outboard or stern drive
MARPA
Mini Automatic Radar Plotting Aid
NMEA
The NMEA (National Maritime Electronics Association) protocol is an interna
tionally accepted serial communication interface standard for sharing data
between electronic equipment. Raymarine products can share information
with nonSeaTalk equipment using the NMEA 0183 protocol.
SeaTalk
SeaTalk is Raymarine’s proprietary communication system. It links products to
provide a single, integrated system sharing power and data.
SeaTalk bus
This refers to the continuous SeaTalk system connecting together a series of
Raymarine units.
Yaw
Boat’s rate of turn (°/sec)
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