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Seed Position Each time the Apollo GX is switched on, it must locate
satellites in the sky to acquire signals before determining
a position fix in a complex process involving lengthy
mathematical operations. Without a seed position and
the current UTC time and date, this process can take 10
minutes or more to complete. Enter a Seed Position to
allow the receiver to quickly locate and track available
satellites.
Note
The seed position and current time only
need to be entered the first time the receiver
is switched on. This information is stored in
memory and need not be entered again. If
you move about three hundred miles
without the Apollo GX turned on and
tracking its position, reenter the seed
position.
Entering a
Seed Position
After the start up tests, you will always have the choice
of entering a Seed Position. The Seed Position is a
starting reference point so the GPS receiver knows
what satellites to look for. If a Seed Position has been
previously entered, you do not need to select a new
Present Position or a Reference Waypoint. If you do
not make any selections, the Apollo GX will
automatically progress into the Navigation function.
You cannot enter a seed position in simulator mode.
1. The previous Seed Position will display with the
choice of
SEL to change the Seed Position or ENTER to
accept the previous position. If you don’t do anything,
the Apollo GX will continue normally. You can also
11-5
Start Up Displays