1. OPERATIONAL OVERVIEW
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1.29 Presentation Modes
This radar has the following presentation modes available:
Relative Motion (RM)
True Motion (TM)
Land objects and sea are stationary. Requires compass and speed data.
1.29.1 How to select an presentation mode
Select the [PRESENTATION MODE] box at the top left corner of the screen, then
press the left button to select a presentation mode.
Loss of gyrocompass signal
When the compass signal is lost, "NO GYRO SIGNAL" appears in yellow-orange in
the [ALERT] box, the presentation mode automatically becomes HEAD UP, and TT
and AIS targets, map and chart are erased. Stop the alert with the [ALERT ACK] key
or select the [ALERT] box, then press the left button. Check the GYRO data.
1.29.2 Description of presentation modes
HEAD UP mode
A display without azimuth stabilization in which the
line that connects the center with the top of the display
indicates your heading. Targets are shown at their
measured distances and their directions relative to
your heading. The short dotted line on the bearing
scale is the north marker.
HEAD UP : Not stabilized
STAB HEAD UP : Head-up with compass bearing scale (True Bearing) where the
bearing scale rotates with the compass reading.
COURSE UP : Compass-stabilized relative to ship’s orientation at the time of se-
lecting COURSE UP.
NORTH UP : Compass-stabilized with reference to North.
STERN UP : The radar image is rotated 180°. Graphics and relative and true
bearings are also rotated 180°.
= Other modes:
STERN UP RM, STAB HEAD UP RM,
COURSE UP RM, NORTH UP RM, NORTH UP TM
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