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Getting-Started Tour
Now that your GPS receiver has been initialized, it’s
time to take a tour through its basic features and functions.
The tour assumes that you have initialized the receiver and
have not changed any of the factory settings (units of mea-
sure, selectable fields, etc.). If you have changed any of the
default settings, the pictures and descriptions may not
match your unit’s configuration.
Powering Up and Taking a Fix
Take the GPS 45XL outside and find an open area
where the receiver will have a clear view of the sky. Hold
the receiver at a comfortable height, at arm’s length from
your body, with the external antenna turned perpendicular
to the receiver.
To turn the unit on:
1. Press and hold
B
until the receiver turns on.
A welcome page will be displayed while the unit con-
ducts a self test. Once testing is complete, the welcome
page will be replaced by the satellite status page and the
GPS 45XL will begin acquiring satellites.
Satellite Status Page
The GPS 45XL’s satellite status page provides a visual
reference of satellite acquisition and position. As the receiv-
er locks onto satellites, a signal strength bar will appear for
each satellite in view, with the appropriate satellite number
(1-32) underneath each bar. The progress of satellite acqui-
sition is shown in three stages:
• No signal strength bars— the GPS 45XL is look-
ing for the satellites indicated.
• Hollow signal strength bars— the GPS 45XL has
found the satellite(s) and is collecting data.
• Solid signal strength bars— the GPS 45XL has
collected the necessary data and the satellite(s) is
ready for use.
Note that each satellite has a 30-second data transmis-
sion that must be collected (hollow bar status) before the
satellite may be used for navigation (solid bar status). Once
a fix has been calculated, the GPS 45XL will then update
your position, track and speed by selecting and using the
best satellites in view.
Getting Started
Power On/
Satellite Status
9
Welcome Page
Status Page
The signal strength bars at
the bottom of the page will
not appear until the GPS
45XL has found the
satellites indicated at the
bottom of the screen.
GPS 45XL Manual C 8/4/98 3:05 PM Page 9