Echo Trails; Selecting Trail Time; Starting Echo Trails; Canceling Echo Trails - Furuno FR-7041R-MARK-2 Operator's Manual

1. OPERATION
1.25

Echo Trails

You can show the movement of all radar targets relative to your vessel in
afterglow. This function is useful for alerting you to possible collision situations.
1.25.1

Selecting trail time

1. Press the [MENU] key to display the main menu.
2. Select OTHER MENU and press the [ENTER] key.
3. Use the trackball to select "8. Trail Time" followed by desired trail time.
4. Press the [ENTER] key followed by the [MENU] key to conclude your
selection and close the menu.
1.25.2

Starting echo trails

Press the [ECHO TRAIL] key to start echo trail. "TRAIL," the echo trail time
selected and elapsed time appear at the top right corner of the display. Then,
afterglow starts extending from all targets.
When the elapsed time clock counts up to the trail time selected, the elapsed time
display freezes. Then, the oldest portions of trails are erased so only the latest
trail, equal in length to the trail time selected, is shown. This continues until echo
trail is cancelled. For example, the one-minute trail time is selected. When the
elapsed time clock counts up to 60 seconds, the elapsed time display freezes at
"60," all but the latest one minute of trails is erased, and then echo trail continues.
For continuous trails, the maximum continuous trail time is 99 minutes and 59
seconds. When the elapsed time clock counts up to that time the elapsed time
display is reset to zero and trails begin again.
Note: Echo trails are erased and restarted whenever the range or mode is
changed or when the display is shifted or zoomed.
1.25.3

Canceling echo trails

Press the [ECHO TRAIL] key.
1-26
Figure 1-23 Echo trails