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1. OPERATIONAL OVERVIEW
1-27
mary while the others can be secondary. If a speed sensor is changed from
secondary to primary state and another speed sensor was selected as prima-
ry, then that sensor previously selected to primary state is then automatically
selected to secondary state.
3) Select [Bottom] or [Water] at [Stabilization Mode] to set the stabilization meth-
od. Select [Bottom] for GPS or [Water] for a speed log.
4) Check [LOG] or [GPS] at [Sensor Type] to select the source of speed data.
5) Go to step 6.
5. For manual input, set the stabilization mode for [Water] and check [Manual].
Click the manual box to show the up and down arrows then click appropriate arrow
to set speed.
Note: For set and drift, see chapter 16.
6. Click the [OK] button to save the settings then click the [MENU] bar to close the
menu.
Notes on speed input
• IMO Resolution A.823(19) for TT requires that a speed log to be interfaced with a
TT should be capable of providing through-the-water speed (forward speed).
• A single-axis water log cannot measure speed when the wind is coming from the
leeway direction.
• When AIS is active, "Manual", "Reference SPD" and "Set Drift" are shown in gray
to indicate that they are not available for selection.