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Rino
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120 Owner’s Manual 7
GETTING STARTED > UNDERSTANDING GPS
Understanding GPS
The Global Positioning System (GPS) consists of 24
satellites that circle the earth twice a day in a very precise
orbit and transmit information to Earth. The Rino 120
must continuously “see” at least three of these satellites
to calculate your location and track your movement. If
some of the satellites in view get blocked or “shaded,” the
receiver simply uses an alternate satellite to maintain the
location fix.
Because the Rino 120 relies on satellite signals to provide
you with navigation guidance, the receiver needs to
have an unobstructed, clear view of the sky for best
performance. In a nutshell, the GPS receiver’s view of the
sky generally determines how fast you get a location fix
or if you get a fix at all. GPS signals are relatively weak
and do not travel through rocks, buildings, people, or
metal: So, remember to keep a clear view of the sky at all
times for best performance.
Your Rino 120 needs to be given the opportunity to find
or AutoLocate itself: This is also called initializing the
receiver or unit.
Longer initialization (AutoLocate) is only necessary:
• The first time you use your Rino 120 (new from the
factory).
• After the receiver has been moved over 500 miles
with the power off from the last time you used it.
Once you initialize the unit to a location, it typically
computes a fix within a couple minutes.
Visit the Garmin Web site at www.garmin.co
m for more
information on GPS.