Furuno FCR-28x9 Manual De Usuario

2.  RADAR, CHART RADAR OPERATION

You may display echo trails in true or relative motion. Relative trails show relative 
movements between targets and own ship. True motion trails present true target 
movements in accordance with their over-the-ground speeds and courses. The trail 
and past position modes in the North-up true motion are fixed to True.

Click the Trail mode indication to select [True-G] or [REL] as appropriate.

Trail time, the trail plotting interval, can be selected with the scrollwheel, left button or 
right button.

The trail timer counts up the trail time and is erased once the terminal count is 
reached. For example, if the trail time is six minutes, the timer is erased when trails 
have been plotted six minutes. The maximum time for continuous plotting is 99:59.

Four controls are available to select a trail time. The times available depend on the 
control used as shown in the table below.

•  Left button, right button or scrollwheel: Put the cursor on the Trail time indication 

at the bottom-right position then operate the control. For the right button, a context-
sensitive menu appears. Click the desired time.

•  Control Unit: Push the TRAIL key.

All trails may be erased (including those in the memory) and restarted to start trails 
fresh. 

Control Unit: Press and hold down the TRAIL key until trails disappear.
Context-sensitive menu: Right-click the display area to show the context-sensitive 
menu then select [Delete All Trails].

Left button, right button, 
TRAIL key

OFF, 15 sec, 30 sec, 1 min, 3 min, 6 min, 15 min, 30 min, 
CONT(inuous)

Scrollwheel

OFF, 15 sec, 30 sec, 1-30 min (30 sec intervals), CONT(inuous) 

True target trails
(No smearing of
stationary targets)

Relative target trails
(Targets moving 
relative to own ship)