Garmin GPS Receiver nüvi User Manual

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To change the DOP/EPE field:
1. Press
N
and rotate
O
to display the satellite status page.
2. If the desired field (EPE or DOP) is not displayed, press
C
twice.
3. Use
K
to change between ‘epe’ and ‘dop’. Press
C
to finish.
The receiver status field, located at the top left of the page, can display the fol-
lowing messages under various conditions:
Search sky - The GNC 250 is searching the sky for visible satellites. You
will be informed with the message ‘Searching the Sky’.
Acquiring - The GNC 250 is acquiring satellites for navigation.
2D Nav - The GNC 250 is in 2D navigation mode. If your installation
does not include an altitude serializer, you must enter the
altitude manually (see page 2).
3D Nav - The GNC 250 is in 3D navigation mode and will compute
altitude.
Simulator - The GNC 250 is in simulator mode, which should only be
used for practice and trip planning. Never use simulator
mode for actual navigation.
Poor cvrg - The GNC 250 cannot acquire sufficient satellites for naviga-
tion.
Need alt - The GNC 250 needs altitude in order to start/continue navi-
gation. Go to the position page and enter the altitude.
Not usable - The GNC 250 is unusable due to incorrect initialization or
abnormal satellite conditions. Turn the unit off and on again.
17
REFERENCE
Density Altitude/
True Air Speed
Acquiring satellites for navigation.
Searching the Sky.
SECTION
1
NAV KEY
Receiver
Status Field
250 real 7/14/98 9:32 AM Page 17

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