- The autopilot has received more Navigator Data than it expected, or
- The autopilot has "timed out" because it has not received expected Navigator Data within a prede-
termined length of time.
Make the following checks:
- That the Navigator is turned on.
- That the Data output format from the Navigator is NMEA 0183.
- That NAV is selected correctly.
- On the PCB inside the Pilot computer there are LED's beside each NAV port (PL11 in 609, PL11,
16 & 17 in 619). The LED for each port will flash if data is being received by that port.
- Check the Navigator for bad reception or faulty equipment.
- Check the data output from the Navigator.
Sea State Adjustments
Rudder Ratio
The Rudder ratio setting is used primarily to match rudder movement to boat speed. Generally the higher
the speed the less movement is required, the lower the setting needs to be.
configured to automatically adjust the Rudder ratio setting in relation to the vessel's speed.
To manually adjust the Rudder ratio setting, press the INFO key repeatedly until R R U U D D D D E E R R is displayed (this set-
ting can be turned off from the Information list, in which case the method described can be used).
Adjust the setting using the
The range is from 0 (Minimum movement) to 20 (Maximum movement).
The Information display reverts back to showing Live Heading if it has not received a key press for 7 seconds
Response
The Response setting is primarily the autopilot's "weather" control. It sets the amount that the vessel is per-
mitted to move off course before rudder is applied to bring it back onto its set heading.
You may need to open the Response (increase the setting value) in heavy seas and close it (decrease the
setting value) in calm seas.
This will normally be set to Adaptive and require no manual adjustment.
ADJUSTMENTS
If the setting is too low the vessel will understeer and tend to drift off course to
one side.
If the setting is too high the vessel will oversteer and build up oscillations from
side to side.
If NMEA Speed information is connected to the Pilot Computer, the Pilot can be
and
keys.
If the response setting is too high, the vessel moves a long way from the cour-
se before it is corrected. You will need to decrease the Response setting to
correct this.
If the response setting is too low, the vessel will hold its course but the helm
will be constantly and rapidly moving, making small unnecessary corrections.
Increase the Response setting to correct this. This condition causes the most
wear in the steering gear and is wasteful of battery power.
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