Garmin GPSMAP 168 Sounder - Manual (Page 16)

5
Getting Started
Initializing the Receiver
,
To graphically initialize the GPSMAP 168 Sounder:
1. From the Status Page, press the MENU key. The Status Page options menu window will appear.
2. Using the ARROW KEYPAD, highlight ‘Initialize Position’ and press ENTER/MARK to initialize the
receiver from the built-in worldwide map. The Initialize Position Page will appear, prompting you to
select your approximate location with the map cursor.
3. Use the ARROW KEYPAD to move the map cursor and point to your approximate location within
100 miles. If you have diffi culty identifying your position, press and release the IN key to zoom in
to see the next lower map scale.
4. Once you have determined your approximate location on the map, press the ENTER/MARK key.
This does not “calibrate” the unit in any way, but rather helps to speed up the initial
satellite acquisition. If the unit switches to the Map Page or displays ‘2D’ or ‘3D
Navigation’ during this process, it is not necessary to initialize the unit.
The GPSMAP 168 Sounder will now begin searching for the appropriate satellites for your region
and should acquire a fi x within a few minutes. A signal strength bar for each satellite in view will appear
on the top middle of the page, with the appropriate satellite number under each bar. The progress of
satellite acquisition is shown in three stages:
• No signal strength bars— the receiver is looking for the satellites indicated.
• Hollow signal strength bars— the receiver has found the indicated satellite(s) and is collecting data.
• Solid signal strength bars— the receiver has collected the necessary data and the satellite(s) are
ready for use.
Once the receiver has collected information from at least three satellites, the top of the screen will
display either ‘2D’ or ‘3D Navigation’, and the GPSMAP 168 Sounder is ready for use.
Point to your approximate location
and press ENTER/MARK.
A satellite’s strength bars will turn
black when it’s ready for use.
168 Manual Part 1.indd 5 11/18/2002, 3:36:21 PM