Glossary – Raymarine autopilot + ST4000+ User Manual
Page 130
Glossary
115
Glossary
Term
Meaning
°
Degrees
A
Amp
AutoTrim
The AutoTrim setting determines the rate at which the autopilot applies
‘standing helm’ to correct for trim changes caused by varying wind loads on
the sails or superstructure.
AWG
American Wire Gauge
CE
Marked on products that comply with defined European Community
standards
counter rudder
Counter rudder is the amount of rudder the autopilot applies to try to prevent
the boat from yawing off course. Higher counter rudder settings result in
more rudder being applied.
DC
Direct current
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 ST4000+ autopilot system
ft
Foot (1 ft = 305 mm)
GPS
Global Positioning System
Hz
Hertz (cycles per second)
in
Inch (1 in = 25.4 mm)
kg
Kilogram (1 kg = 2.2 lb)
km
Kilometre
lb
Pound (1 lb = 0.45 kg)
m
Metre (1 m = 39.4 inches)
mm
Millimeter (1 mm = 0.04 inches)
nm
Nautical mile
Nm
Newton metre
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.