Target Trails (Echo Trails) - Furuno FR-1500 MARK-3 Series User Manual

1.25.8 Past plot points
Past plot points may be marked on the display by dots. Up to nine dots can be displayed as
follows:
1. Press the [MENU] key.
2. Press the [7] key twice to reach the PLOT MENU 1.
3. Press the [7] key to select OFF or ON from the TRACK field as appropriate.
4. Press the [ENTER/SELECT] key to register your selection followed by the [MENU] key to
close the menu.
1.25.9 Displaying plot No.
Plot numbers can be turned on/off as follows.
1. Press the [MENU] key followed by [7] key twice to show PLOT MENU 1.
2. Press the [9] key to select PLOT No. DISP ON or OFF as appropriate.
3. Press the [ENTER/SELECT] key to register your selection followed by the [MENU] key to
close the menu.

1.26 Target Trails (Echo Trails)

It is possible to display the trails of the radar echoes of targets in the form of synthetic afterglow.
Target trails are selected either relative or true and may be sea or ground stabilized. The simulated
afterglow can be selected in a single tone or gradual shading depending on a setting on the TGT
TRAIL menu.
1.26.1 True or relative trails
Target trails may be displayed relative to north or own ship's heading on Relative Motion, and only
relative to north on True Motion. True motion trails require a compass signal and own ship speed
input.
(a) True target trails – no smearing of
stationary targets
Note: When true trail is selected on the RM mode, the legend TRUE TRAIL appears in red.
To select true or relative target trail presentation:
1. Press the [MENU] key.
2. Press the [2] key twice to show the TGT TRAIL menu.
(b) Relative target trails – all targets
moving relative to own ship
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