Furuno GP-31 - 1.4 Display Modes

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1.4 Display Modes
Your unit has five display modes: Plotter Display, Highway Display, Steering Display, Nav
Data Display and User Display (digital data or speedometer). Press the [DISP] key to
select a display mode. Each time the key is pressed, the display mode changes in the
sequence shown below.
Figure 1-3 Display modes
Note: Position data can be shown in latitude and longitude or TDs (Loran C or Decca).