ComNav P4 Installation and Operation
Basic Operations
Document PN 29010100 V1r0 - 141 -
The Waypoint ID, Range, Bearing, and cross-track error (XTE), as provided by the
Navigation System will be shown on the Control Head display.
NOTE: some Navigation Systems do not provide all of this information. In such cases, the
display will show dashes ( - - - ) or “NONE” in place of any missing data.
Figure 62 – Typical NAV Mode Screen (Normal Display)
In NAV mode, you can quickly “dodge” around obstacles, and automatically return to your
original Track. See the Dodge and Jog Lever Turns sections for more information.
You can limit the maximum amount of rudder travel in NAV mode by turning on the Auto/Nav
rudder limits. Turning them on, and adjusting them to suit, is done in the Power Steer menu.
The P4 has an automatic Off-Course Alarm that will be activated should the vessel fall off the
commanded course in NAV mode, by more than 20°. There is a 32 second delay on this
alarm.
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