Markers - Furuno FR-2105 Operator's Manual

1.30 Markers

Heading marker and heading line
The heading marker and the heading line indicate the ship's heading in all presentation modes.
The heading line is a line from the own ship position to the outer edge of the radar display
area and appears at zero degrees on the bearing scale in head-up mode centered; it changes
the orientation depending on the ship orientation in north-up and true motion modes. The
heading marker appears as a small circle on the bearing scale to indicate the heading when the
display is off-centered or is in north-up or TM mode.
Temporarily erasing heading line, video plotter screen (requires RP-26)
To temporarily extinguish the heading line and video plotter screen to look at targets existing
dead ahead of own ship, press the HL OFF key. The heading line reappears when the key is
released. Note that the video plotter screen (requires Video Plotter RP-26) is also temporarily
erased when the HL OFF key is pressed.
R/N/W versions: Pressing HL OFF key outputs + cursor LL ($RATLL) from J450 on the INT
board. OSD and RSD are also output.
North marker
The north marker appears as a short dashed line. In the head-up mode, the north marker
moves around the bearing scale in accordance with the compass signal.
Stern marker
The stern marker (a dot-and-dash line) appears opposite to the heading line. This marker can
be displayed provided that STERN MK ON is selected on the RADAR 2 menu.
Own ship symbol
The own ship symbol ( ) can be displayed/erased on the RADAR 2 menu. The symbol is
scaled to indicate the length and beam of the vessel. If the largest dimension of the symbol
gets smaller than 6 mm, the symbol will disappear and own ship will be represented with a
small dot or circle depending on the range in use.
NOTE: Details should be entered during installation.
-1.42-