GPS NAVIGATOR
6.3 NAV
Access levels and summary of the NAV functions
"FIRST SHOWN" COMBI VIEW and X-TRACK ERROR, chapter
6.3.1
"Press MINUS" ETA and TTG (Arrival time or time to go to WP),
chapter 6.3.2
"Press MINUS " DRIFT (Tidal and boat drift), chapter 6.3.4.
"Press MINUS " WCV (VMG to WP) and CTS (Course To Steer
including Drift), chapter 6.3.5.
"Press MINUS " XTE (Cross track error)
6.3.1 COMBI VIEW and X~TRACK ERROR
The most used function in NAV is the COMBI VIEW where you will
see;
SPEED and COURSE OVER GROUND, DISTANCE and
BEARING TO WAYPOINT (When a WP is active)
The X-track error is the distance of 90° from your track. The symboI
indicates that the error is to the left, or right, of your track.
Note! To make COG (Course Over Ground) stable, use higher
dampening at low speeds and lower dampening at high speeds. Try
to keep dampening as low as possible. Row to set dampening, see
chapter 7.4.
6.3.2 ETA and TTG
Estimated Time of Arrival
Note! ETA is calculated on the assumption that both speed and
direction will be constant during travel towards the waypoint.
Press MINUS
TTG or Time To Go in hours and minutes to the WP with the same
criteria as ETA.
6.3.3 DRIFT
When both Compass heading and log data are available, the boats
drift including tide (speed and direction) can be calculated. In the
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