Adjusting MAPTATTOO settings

2 min read

In order to access the settings, Open the menu on your MAPTATTOO and select its last Entry (“Settings”).

You will be presented with a screen that shows the settings that can be updated.

The following sub-categories are available:

In order to adjust a setting, navigate to it with the “UP” or “DOWN” keys on your directional keypad

The settings can be adjusted using the “LEFT” or “RIGHT” keys on your directional keypad.

Units #

The following settings can be adjusted:

Distance Unit: select the unit in which distances, such as distance to a waypoint, are presented on the screen
Heading Unit: Select Geographic (T: True) or Magnetic (M: Magnetic)
Height Unit: select the unit in which features such as lighthouse are represented on the chart
Speed Unit: Select the speed Unit (kt, kph, mph, m/s)
Sounding Unit: select the Sounding Unit (m, ft)
Lat/Long Format: Select the desired format for waypoint or route point entries: d (ex: N 47.77267°), dm (ex: N 47°26.8287′) or dms (ex: N 47°26’45”)

The following settings can be adjusted:

Chart Magnification: adjust the magnification to prioritize the details or readability at a distance.
Charts: Choose “0” to prioritize Marine Charts, “1” for Inland Lake Charts
Orientation: Select “0” for True North Up or “1” for Course/Arrow up. When selecting Arrow-up and if the boat speed is greater than 1 Kt, the chart will orient to keep the arrow pointing up when centered (press the “Center” key to activate the auto-center mode. The compass rose indicates the True North. The arrow will center itself at about a third of the screen height at the bottom (see screenshot below).
Smoothing: You can now add a smoothing function to reduce noise in the speed and heading readings. Select 1 for no smoothing to 8 for high smoothing factor (and lower reactivity)
Tide & Current: Select “1” to enable tide and current in your zone.
Touch: Deactivate touch (by selecting the “0” entry) when the conditions are rough and drops of water are causing some issues.

You can customize the data presented on your screens by assigning data to primary (large) or secondary (small) widgets.

Data shown with (*) is only available through the Bluetooth Gateway and on the MAPTATTOO PRO if your NMEA 2000 streams that information.

SOG (Speed over ground) – Boat’s speed relative to the ground in knots
COG (Course over ground) – Direction of travel relative to the ground in degrees
(*) STW (Speed through water) – Boat’s speed relative to the water in knots
(*) HDG (Magnetic heading) – Compass heading in degrees
LAT (Latitude) – Current latitude position in decimal degrees
LON (Longitude) – Current longitude position in decimal degrees
DAT/TIM (Date/Time) – Current Date / Current Time
TSG (Top Speed) – Top speed, over ground
MTM (Moving Time) – Moving time
IDL (Idle Time) – Time idle
DST (Distance traveled) – Distance traveled since last reset

(*) AWA (Apparent wind angle) – Wind angle relative to the boat in degrees
(*) TWA (True wind angle) – Actual wind angle corrected for boat movement in degrees
(*) AWS (Apparent wind speed) – Wind speed as measured on the boat in knots
(*) TWS (True wind speed) – Actual wind speed corrected for boat movement in knots

RTN (Route Name) – Name of the selected route
WPT (Waypoint Name) – Name of the next waypoint
BTW (Bearing to Waypoint) – Bearing to the next waypoint
DTW (Distance to Waypoint) – Remaining Distance to Waypoint
XTE (cross-track deviation) – Angle between your heading and the bearing to the next waypoint)
VMG (Velocity Made Good) – Projected Speed relative to next waypoint direction
TTR (Time to Route) – Time to Complete the route assuming average speed
TTW (Time to Waypoint) – Time to get to next waypoint assuming average speed
RDT (Remaining Distance) – Remaining distance on current route

Updated on June 7, 2026