Initialization - Lowrance GlobalNav 310 Installation And Operation Instructions Manual

Once it locks on to the satellites and finds your position, it stores the
satellite data in its memory. The next time you use the unit, it should take
much less time to lock on.
To use your GlobalNav 310, first make certain you have a clear view of
the sky, free from any obstructions such as trees, carport, or a covered
boat dock.
Press the PWR key. Read the message
on the screen, then press the EXIT key
to erase the message. A screen similar
to the one at right appears.
This is windows group "A". Your track
(TRK), or direction of travel is shown in
the upper right corner of this screen.
Bearing to a waypoint (BRG), Course
over ground (CRS), and cross track er-
ror (XTK) are all shown on this screen. You must recall a waypoint to use
the bearing, course, and cross track error windows. As you wait for it to
find your position, you'll see numbers flashing on the display. Anytime
you see flashing numbers, it means the GlobalNav 310 does not have a
position! Do not rely on any data that is flashing! When the numbers stop
flashing, the unit has locked on to the satellites and the position is good.
That's all you have to do to find your position. All time displays may not be
correct when the cold start method is used. See the initialization section
for details on changing the time.
Finding Your Position

Initialization

A cold-start as described above can take over 5 minutes to find your
position. A faster method is to initialize the GlobalNav 310 manually. To
do this, first press the PWR key. Next,
read the messages on the screen and
press the EXIT key to erase them. Now
press the MENU key.
Press the up or down arrow keys until
the "GPS SETUP" menu is highlighted
as shown at right. Now press the right
arrow key. The screen shown at the top
of the next page appears.
9