2-7
When four or more satellites with good geometry are available, the GPS 95
will automatically operate in the 3D mode in which latitude, longitude and
altitude are computed. If only three satellites are available, the unit will
operate in 2D mode in which only latitude and longitude are computed. When
operating in the 2D mode, the unit will use the last computed altitude or your
last entered altitude. (Section 5.4 describes how you may enter the altitude.)
Your GPS 95 will automatically update satellite orbital data as it operates. If
you have not operated your unit for a period of six months or longer, it will take
approximately 15 minutes to search the sky and collect new orbital data. You
will be informed when your unit is searching the sky with the message
“Searching the Sky.” Once satellite orbital data is collected, it will be stored
in memory. The memory is maintained by an internal battery, therefore the
data will not be lost when you turn your GPS 95 off or remove the battery
pack.
If the GPS 95 cannot acquire enough satellites for 2D or 3D navigation, you
will be informed with the message “Poor GPS coverage”. If this situation
occurs, make sure the antenna is properly connected and not obstructed by
nearby buildings or other structures.
2.8 TURNING THE GPS 95 OFF
To turn the GPS 95 off, press and hold
the PWR/STAT key.
The Off Page will be displayed, the GPS
95 will perform a countdown and, after a
brief delay, will shut off. All user
waypoints, routes, and setup information
that you have entered will be maintained
while the unit is off - even if the battery
pack is removed.
2.9 LEARNING TO USE THE GPS
95
If you are using the GPS 95 for the first time, you are encouraged to read
Chapter 3 which introduces the GPS 95's waypoint and database features,
Chapter 4 on the use of the GOTO key, and Chapter 5 for navigating to a
waypoint. A sample trip is included in Chapter 5 to get you started on the use
of the GOTO key and the various navigation pages available on your GPS
95. You may also want to read Chapter 8 on custom setups to configure the
GPS 95 to your preferences. Afterward, you may want to read through the
rest of this manual and make further use of the built-in simulator to practice
with the advanced features.
