Garmin gpsmap 172 Manuale Utente

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Reference
Waypoint Lists
You can also search for a waypoint by name:
1. Highlight the name field and press ENTER.
2.  Use the ARROW KEYPAD to select the first letter of 
the name. 
3.  Move to the RIGHT and enter the second letter if you do 
not see it on the list below. 
4.  Repeat this until the name appears. Press ENTER when 
you see the name. 
5.  Highlight the name on the list and press ENTER again 
to review the waypoint. When done, highlight ‘OK’ and 
press ENTER.
Once a waypoint is deleted from the list, it cannot be recovered from the unit. It is 
advisable to backup important waypoints to a computer using an optional PC cable 
and interface software, save them to a data card, or write them down by hand.
To delete an individual waypoint from the ‘User’ list:
1.   Use the ARROW KEYPAD to highlight the waypoint to be deleted. 
2.   Press MENU, highlight ‘Delete Waypoint’ and press ENTER. 
  
OR, press ENTER, highlight ‘Delete’ and press ENTER
3.   Press the ENTER key to confirm the deletion warning.
To delete waypoints by symbol:
1.   From the ‘User’ tab, highlight the waypoint to be deleted and press MENU, then select ‘Delete By 
Symbol’ and press ENTER.
2.   Use the ARROW KEYPAD to highlight the symbol of the waypoint(s) to be deleted and press 
ENTER.
3.   Press ENTER to confirm. Choose ‘Cancel’ or press QUIT to stop the deletion.
To delete all user waypoints:
1.   Press the MENU key to select the options window.
2.   Use the ARROW KEYPAD to highlight ‘Delete All’ and then press ENTER.
3.   Highlight the ‘OK’ prompt and press 
ENTER to confirm.
Proximity Waypoint List
The ‘Proximity’ submenu of the Points tab lets you define an alarm circle around a stored waypoint 
position, and can be used to help you avoid reefs, rocks, or restricted waters. Up to ten waypoints may 
be listed, with a maximum alarm radius of 99.99 nautical or statute miles or kilometers. If a proximity 
alarm circle overlaps with an existing alarm circle, the message ‘Proximity Overlaps Another Proximity 
Waypoint’ appears. Since the unit only alerts for one of the overlap points, use caution when navigat-
ing in these areas. If you enter an alarm circle overlap, you are only alerted to the closest proximity 
waypoint.
Name
Field
Waypoint
List