Furuno FR-7041R-MARK-2 Operator's Manual page 19

1. OPERATION
Presentation mode,
representative display
North
marker
North
1-10
Description
Heading
Head-up Mode (HUP RM)
marker
A display without azimuth stabilization in which
the line connecting the center with the top of the
display indicates own ship's heading.
The target pips are painted at their measured dis-
tances and in their directions relative to own ship's
heading.
A short line on the bearing scale is the north marker
indicating compass north. A failure of the heading
sensor will cause the north marker to disappear and
the HDG readout to show xxx.x. After restoring the
heading signal press the [MODE] key to display
the heading.
North-up Mode (NUP RM)
Heading
marker
In the north-up mode, target pips are painted at their
measured distances and in their true (heading sensor)
directions from own ship, north being maintained
up of the screen. The heading marker changes its
direction according to the ship's heading.
If the heading sensor fails, the presentation mode
changes to head-up and the north marker disappears.
Also, the HDG readout shows xxx.x.
heading signal, and then press the [MODE] key to
display the heading readout.
Figure 1-9a Presentation modes
Restore the