To delete waypoints by symbol or category:
1. On the User sub tab, highlight the waypoint to delete, and
press
MENU
.
2. Highlight
Delete by Symbol
or
Delete by Category
, and
press
ENTER
.
3. When deleting by symbol, highlight the symbol of the
waypoint you want to delete, and press
ENTER
. When
deleting by category, select the category you want to delete
from the list, and press
ENTER
.
4. Highlight
OK
, and press
ENTER
to confirm. Choose
Cancel
or press
QUIT
to exit without deleting the waypoint.
To delete waypoints by distance:
1. On the User sub tab, highlight the waypoint to be deleted,
and press
MENU
.
2. Highlight
Delete By Distance
, and press
ENTER
.
3. Select
Less Than
or
More Than
and enter the distance
using the
ROCKER
.
4. You can select a waypoint or point of interest as the
From
location. Highlight the
From
field and press
ENTER
. From
the Find Menu, select a location and press
ENTER
. When
OK
is highlighted, press
ENTER
.
5. Highlight
Delete
and press
ENTER
to delete all waypoints
within the set location. Choose
Cancel
or press
QUIT
to exit
without deleting the waypoints.
Proximity Points
Use the Proximity Points tab to define an alarm circle around a
stored waypoint location. The alarm circle can help you avoid reefs,
rocks, or restricted waters. Up to 100 waypoints can be listed with
a maximum alarm radius of 99.99 nautical miles, statute miles, or
kilometers.
If a proximity alarm circle overlaps an existing alarm circle, a
“Proximity Overlaps Another Proximity Waypoint” message
appears. Because the unit only alerts for one of the overlap points,
use caution when navigating in these areas. If you enter an alarm
circle overlap, you are only alerted to the closest proximity
waypoint.
To turn proximity alarms on or off:
1. Highlight the
Points
tab on the Main Menu, and then select
the
Proximity
sub tab.
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GPSMAP 378/478 Owner’s Manual
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