70 ST70+ User Reference Manual
HDOP
Horizontal Dilution Of Position
MOB Man overboard.
NM Nautical mile.
NMEA National Maritime Electronics Association protocol. This is an
internationally accepted serial communication interface standard for
sharing data between electronic equipment.
Response • Autopilot response level controls the relationship between course
keeping accuracy and the amount of helm/drive activity.
• Display response determines how often information on a display
updates.
Rudder gain Rudder gain is a measure of how much helm the autopilot will apply to
correct course errors. The higher the setting the more rudder will be
applied.
SeaTalk Raymarine’s proprietary communication system. It links Raymarine
products to provide a single, integrated system sharing power and
data.
Variants are SeaTalk
2
and Seatalk
ng
SM Statute (land) mile.
SOG
Speed Over Ground
STW
Speed Through Water
TWA
True Wind Angle
TWS
True Wind Speed
VHF Very High Frequency (radio).
VMG
Velocity Made Good
WEEE
Waste Electrical and Electronic Equipment
XTE
Cross Track Error
XTE Cross track error.
Yaw The boat’s rate of turn (°/sec).
Term Description
85024_1.book Page 70 Tuesday, January 27, 2009 11:31 AM
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