Glossary 45
NMEA T he NMEA (National Maritim e Electronics Associatio n) protocol is an interna
tiona lly accepted serial communication interface standard for sharing data
between electronic equipment . Raymarine products can share information
with n onSeaT alk equ ipment u sing the N MEA 018 3 pro tocol.
respon se The aut opilot respo nse level control s the relationship between cou rse keeping
accuracy an d the am ount of helm/ drive activ ity .
rudder gain Rudder gain is a measu re of how much helm t he autopilot will ap ply to correct
cours e errors . The higher the s etting the mo re rudd er will be applied.
SeaT alk SeaT alk is Raym arine’ s pro prietary communicatio n sys tem. It links the p rod
ucts to pr ovide a single , integrat ed s ystem s haring power and data.
SeaT alk bus T his refers to t he continu ous SeaTalk sys tem conn ecting together a series of
Raymarin e units .
SM Statute (land) mile .
VHF V ery High F requency (radio).
WindT rim WindT rim (wind respo nse) controls how quickly the autopilot responds to
changes in the wind direction. Higher wind trim sett ings will result in a pilot
that is mo re respo nsive to wind changes .
XTE Cros s track error.
Yaw
T he boat’ s rate of turn (°/sec).
Term
Meaning
81283_1.book Page 45 Monday, October 2, 2006 2:03 PM
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