Furuno NAVNET GD-1920C - Manual (Page 46)

2. RADAR OPERATION
2-17
2.18 Echo Trails
Echo trails are simulated afterglow of target echoes that represent their movements relative
or true to own ship. This function is useful for alerting you past possible collision situations.
Echo trail
Sample echo trails
2.18.1 Trail time
1. If not displayed, press the HIDE/SHOW key to show the radar soft keys.
2. Press the TARGET soft key.
3. Press the TRAIL soft key to show the trail soft keys.
TRAIL
RETURN
359.9 ˚R
11.70
nm
+
TRAIL
ON /OFF
TRAIL
TIME
TRAIL
COLOR
GRAD
SINGLE
12/
H-UP
3nm
LP
319. 9 ° M
Trail soft keys
4. Press the TRAIL TIME soft key to show the trail time window.
TRAIL TIME
▲
15 seconds
30 seconds
1 minute
3 minutes
6 minutes
15 minutes
30 minutes
CONTINUOUS
▼
Trail time window
5. Use the Trackball to select time desired.
6. Press the ENTER soft key.
7. Press the RETURN soft key twice to finish.