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18
Cold vs. Warm Start. When the eXplorist is turned on, one of the first things it does is to find out what
satellites are overhead, along with their relative position. It does this by using a built-in satellite almanac.
This almanac, when given the current date, time and approximate position, can provide the eXplorist with
information on what satellites are overhead and their approximate relationship to the eXplorist. Now with
information on satellite availability, the eXplorist can begin setting its internal satellite channels to receive
satellite transmission.
Cold Start. Cold start is defined as when the eXplorist does not have an approximate position to use when
referring to its almanac. This can occur when:
• The eXplorist is turned on for the first time after purchase. The memory is cleared prior to shipping so
any position that may have been in the eXplorist is set to a null value.
• If you have cleared the eXplorist's memory, (found in Preferences) all of the memory will be cleared
and the last computed position will be set to a null value.
• If you have traveled with your eXplorist with it turned off, the last position saved may be so far away
that when the eXplorist begins looking for satellites, the ones it is expecting to find, are not there. (As
a rule of thumb, any time you move for more then 500 mi [804.7 km] with the eXplorist turned off,
there is a good chance it will start up using a cold start.
A cold start should take no more then 2-3 minutes to compute the initial position fix.
Warm Start. Warm starts are when the last position calculated before the eXplorist was turned off is still in
memory and you are in the same approximate position. Most of the time the eXplorist is turned on, it will be
in its warm start mode. With a clear view of the sky, the eXplorist should compute its position in a matter of
seconds.
This concludes the initial startup procedure for the Magellan eXplorist 210. Once the Map screen is
displayed, you have successfully initialized the eXplorist and are ready to go.
Now would be a good time to familiarize yourself with the different navigation screens (using the NAV button)
and to set any preferences that may be different from the factory defaults.
Conclusion