9. OTHER FUNCTIONS
9-11
[DISP. HDG MARKER]: Turns the heading marker on or off. (Heading data is re-
quired.) [SHOW] shows white heading marker to the edge of the screen. [VECTOR]
shows white vector of the length proportional to speed. The length does not change
when switching the chart scale. The heading marker points heading.
[DISP. COG MARKER]: Turns course marker on or off. [SHOW] shows light-blue
course marker to the edge of the screen. [VECTOR] shows light-blue vector of the
length proportional to speed. The length does not change if switching the chart scale.
[WPT. REFRESH SETTING]: Selects waypoint switching method from [WPT ON
VERTICAL LINE] or [ARRIVE ALARM WITHIN RANGE]. See "How to select the way-
point switching method" on page 7-7.
[RNG & BRG MODE]: When you set a destination, the equipment displays the range,
bearing and course to that destination. Range and bearing are calculated by the Great
Circle or Rhumbline method. Route total distance is also calculated. Cross-track dis-
tance is only calculated in the Rhumbline method.
[GREAT CIRCLE]: This course line is the shortest course between two points on the
surface of the earth, like stretching a piece of string between two points on earth. Be-
cause frequent course changes are required it is most suitable for long-range naviga-
tion.
[RHUMBLINE]: This method calculates the range and bearing between two points
drawn on a nautical chart. Since the bearing is kept constant it is ideal for short-range
navigation.
[DISPLAY FORMAT] menu: Page 3
[SET GOTO METHOD]: Selects the method by which to navigate to a quick point from
[ONE POINT] or [100 POINTS]. See section 7.1.
[RANGE/SCALE]: Selects the method how to show the display width, [RANGE],
[SCALE] or [HIDE].
[SCALE DISPLAY]: Turns the scale on or off on the plotter display.
[GPS STATUS]: Turns GPS status abbreviations on or off on the plotter display.
Содержание GP-3700
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