Suppressing Second-Trace Echoes; Displaying External Waypoint And Navigation Line - Furuno FR-2125V Operator's Manual

1.35.5 Erasing contents of a radar map
1. Press [NAV MENU], [1] and [9] to display MAP ERASE menu.
2. Press a wanted number key twice to select ON or ALL, followed by the [ENTER] key.
3. Press the [NAV MENU] key to leave the menu.

1.36 Suppressing Second-trace Echoes

In certain situations, echoes from very distant targets may appear as false echoes (sec-
ond-trace echoes) on the screen. This occurs when the return echo is received one trans-
mission cycle later, that is, after a next radar pulse has been transmitted.
To activate or deactivate the second-trace echo rejector:
1. Press [RADAR MENU], [0], [0], [2] and [0] to show the RADAR 2 menu.
2. Press the [9] key to select 2ND ECHO.
3. Further press the [9] key to activate (ON) or deactivate (OFF) the second-trace echo
rejector.
4. Press the [ENTER] key to register your selection followed by the [RADAR MENU] key
to close the RADAR menu.
1.37 Displaying External Waypoint and Navigation
Line
Waypoint or navigation line defined on another navaid can be displayed by setting
WAYPOINT and NAV LINE menus as follows.
1. Press the [NAV MENU] key.
2. Press [8], [2] for waypoint or [7], [2] for navigation line if video plotter is not provided.
Note: When the waypoint is more than 5000 nm away from own ship, the data shows
">*5000 nm".
1-50
[MAP ERASE]
1 [RADAR MAP]
2 DANGER HIGHLIGHT OFF/ALL
3 COAST LINE
4 MARK
5 NAV LINE
6 PROHIBITED AREAS OFF/ALL
7 BUOY
8 CONTOUR LINE
Figure 1-48 MAP ERASE menu
OFF/ALL
OFF/ALL
OFF/ALL
OFF/ALL
OFF/ALL