Echo Trails; Trail Time - Furuno 1722C Operator's Manual

2. RADAR OPERATION
2.18

Echo Trails

Echo trails are simulated afterglow of target echoes that represent their past
movements relative to own ship. This function is useful for alerting you past
possible collision situations.
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.
.250/
SP
H-UP
4. Press the TRAIL TIME soft key to show the trail time window.
2-24
Echo trail
.125nm
319.9 M
359.9 R
+
0.24nm
MODEL1722C series
Sample echo trails
.125nm
.250/
TRAIL
SP
H-UP
TRAIL
ON /OFF
TRAIL
TIME
GRAD
SINGLE
HIGH
TRAIL
COLOR
RETURN
MODEL1722 series
Trail soft keys
TRAIL TIME
¤
15 seconds
¡
30 seconds
¡
1 minutes
¡
3 minutes
¡
6 minutes
¡
15 minutes
¡
30 minutes
¡
CONTINUOUS
Trail time window
319.9 M
TRAIL
TRAIL
ON /OFF
TRAIL
TIME
BRILL
HIGH
RETURN
359.9 R
+
0.24nm