Furuno NAVNET 1752C - Manual (Page 58)

2. RADAR OPERATION
2-24
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.
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.
.250/ 319.9
°
M .125nm
SP
H-UP
.250/ 319.9 ° M .125nm
SP
H-UP
HIGH
MODEL1722C/1723C series MODEL1722 series
+
359.9 ° R
0.24nm
+
359.9 ° R
0.24nm
TRAIL
TRAIL
TIME
TRAIL
COLOR
RETURN
GRAD
SINGLE
TRAIL
TRAIL
TIME
RETURN
BRILL
HIGH
TRAIL
ON /OFF
TRAIL
ON /OFF
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