Lowrance electronic 4900M GPS Receiver User Manual


 
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4. Press
EXIT to turn off the steering and speed boxes. The unit will now
automatically "steer" along the trail or route. When you arrive at your
"destination," cancel navigation as you normally do.
Tip:
You can pick any spot on the map to begin your simulation session
by using the Initialize GPS command. This makes your unit think
it's located at the position you select. See the following entry.
Initialize GPS
This command is handy when you are practicing in simulator mode.
(See the entry in this section for GPS Simulator.) In simulator mode,
this command makes the unit operate as if it is sitting someplace other
than its actual location. So, you and your unit could be located in Kan-
sas City, but practice navigating in the ocean off Islamorada, Florida.
1. Press
MENU|MENU| to GPS SETUP|ENT|ENT.
2. A message appears, telling you to move the cursor near the desired
location and press
ENT. When the message automatically clears, follow
the message instructions.
3. In a moment, your present position marker arrow appears on the
map in the location you selected with the cursor. The unit will consider
that spot as it's last known position until changed by either a live sat-
ellite lock-on or a new simulator location.
Map Auto Zoom
This receiver has an auto zoom feature that eliminates much of the but-
ton pushing that other brands of GPS receivers force you to make. It
works in conjunction with the navigation features.
First, start navigation to a waypoint. (See the waypoint section for
more information on navigating to a waypoint.) Then, with the auto
zoom mode on, the unit zooms out until the entire course shows, from
the present position to the destination waypoint. As you travel toward
the destination, the unit automatically begins zooming in — one zoom
range at a time — always keeping the destination on the screen.
To turn this feature on, from the
MAP PAGE, press MENU| to AUTO
ZOOM|ENT|EXIT. Repeat these steps to turn it off.
Map Data
This menu lets you turn the map off, if desired (which turns the map
screen into a GPS plotter); turn off or on the pop-up map info boxes;
draw the map boundaries or boxes around the areas of high detail; or
fill land areas with gray. You can also turn on or off Map Overlays,
which display latitude and longitude grid lines or range rings on the