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Going to a Destination
GPS is all about marking positions as waypoints and navigating to them using
the receivers steering guidance and map displays. Weve already seen how to use
the
M
key to store our present position, so its time to move on to the fun
partgoing to a destination. The
G
key, located on the left side of the keypad
above the
Q
key, is the primary tool used to select a destination waypoint or a
route to navigate. The
G
key can be used in three primary ways:
Pressing
G
once displays a list of all waypoints in memory, from which
you can select a single destination waypoint.
Pressing
G
followed by the
O
key provides a list of GOTO options
that lets you start a TracBack
TM
route, select a destination waypoint from
the nearest waypoints list, select a stored route to navigate, or cancel the
current GOTO destination.
Pressing
G
twice allows you to graphically select an on-screen waypoint,
navaid or cursor position as a destination directly from the map display.
For our simulated trip, were going to select the pre-programmed tour route
[the second method], which will automatically place our vessel at the first route
waypoint. This will also give us an idea of how the
O
key is used throughout
the GPSMAP 185 Sounder system to provide context-sensitive options and func-
tions. Lets give it a try by activating the practice route stored in memory for navi-
gation:
1. Press
G
. The waypoint list page will appear. (If we were selecting a single waypoint
to navigate to rather than a route, we would highlight the waypoint and press
T
.)
2. Press
O
to display the context-sensitive options available for the GOTO function.
3. Use the
R
keypad to highlight the Select Route? option. Press
T
to confirm.
4. The select route page will appear, with the GPSMAP TOUR route highlighted.
5. Press
T
. The map page will reappear and display five waypoints chained together in
a simple route, with your boat at the first route waypoint.
12
GETTING STARTED
Using the GOTO Function
A
B
A. Pressing GOTO once displays a list of all way-
points stored in memory. To pick a destination,
select the desired waypoint and press
EDIT/ENTER.
B. The GOTO options page allows you to either
start a TracBack route back home, select a des-
tination from the nearest waypoints list, or
select a route to navigate.