Furuno FCR-2119-BB Operation Manual page 379

[SPD] page (System Sensor)
Vector defined by (SOG and COG) is equal to vector sum of vectors defined by (SPD
and HDG) and (set and drift).
[Stabilization Mode]: Select the water stabilization
mode: Select [Bottom] for ground stabilization, or select
[Water] for sea stabilization.
[Sensor Type]: Select [GPS] in case of a GPS naviga-
tor, or [LOG] for speed log.
[Data Source]: Check [Sensors] to use a sensor in the
[Sensors] list, or click [Manual] to enter speed manually.
Use [Manual] when no speed source is available.
[Manual]: Input speed manually. Check [Water] in [Sta-
bilization Mode] and deactivate the AIS function to en-
able entry.
[Reference SPD]: Check to use radar as the source for
speed and course. (Only available with the Local Sen-
sor Setting and checking [Bottom] in [Stabilization
Mode].)
[Set Drift]: Check the [Set Drift] checkbox to manually
set speed and course of drift. Note that you can select
manual drift only if you check [Water] in [Stabilization
Mode].
Angle = Difference between heading and COG
Spd = Speed component of the drift vector
Cse = Course component of the drift vector
North
cse
SOG
spd
COG
SPD
SPD:
HDG
SOG:
COG:
spd:
cse:
angle:
16. NAVIGATION SENSORS
HDG
water speed
heading of ship
speed over ground
course over ground
speed of drift
course of drift
difference between HDG and COG
16-3