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3.3.24 Locking a fixed target on the radar PPI screen while the ship is navigating
Normally, the PPI image moves as the ship moves.
This method of display is called:
Relative Motion : RM
In contrast to this, the display mode in which the echo images from fixed targets such
as land do not move and the location of the ship (center of the PPI) moves according to the
course and speed of the ship is called:
True Motion : TM
In order to undertake TM display, it is necessary to input bearing information and the
ship's speed information from a navigation device.
Please refer to "3.6.1 Obtaining information on bearing" and "3.6.2 Obtaining in-
formation on speed" with respect to information on bearing and on speed.
Commencing True Motion display
Commencing True Motion displayCommencing True Motion display
Commencing True Motion display
(a) Select "TM" in the line "TM/RM" - the menu "FUNCTION".
The motion display on the PPI screen will change to "TM".
• The bearing display with TM is enabled is only N-UP.
True Motion Display mode: TM
FUNCTION
EBL1/EBL2
EBL2
VRM2
EBL READOUT
ZOOM
TM/RM
HDG MODE
PROCESS
FIX
FLOAT
PLINE1 PLINE2
NO
YES
NO
YES
REL
TRUE,MAG
OFF
SET
RM TM
H-UP N-UP
C-UP
SELECT W/CROSS KEY' ( )
PRESS ENT TO SET
PRESS MUNU TO RETURN
OFF
PR1 PR2
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