Garmin GPS 90 - Manual (Page 77)

It’s important to note that unless your GPS fails internally, you should
never experience complete loss of data. To avoid losing data by battery
failure or an inadvertent keystrokes, take the following precautions:
• Always store your unit with a fresh set of alkaline batteries installed to
preserve waypoint & satellite data. A rechargeable lithium battery will
retain memory while batteries are being changed for a few months.
• Always store your GPS 90 in a position where it’s not possible for multi-
ple keys to be pressed simultaneously by accident.
My GPS 90 comes on in AutoLocate mode (Searching the Sky without
losing data). What does this mean?
The GPS 90’s AutoLocate mode is an advanced software feature that
allows the GPS to find itself anywhere in the world, without knowing its
present position or time. Even though the GPS may not know position or
time, the satellite data stored in memory can help the unit obtain a posi-
tion fix without going through the satellite constellation sequentially.
Your unit is shipped in AutoLocate mode to help provide you with the
fastest initialization possible without entering your present position.
Once you’ve obtained an initial position, AutoLocate mode will only be
necessary when you’ve moved several hundred miles from the receiver’s
last known position. Because AutoLocate mode is a manual selection in
the GPS 90, you should only encounter it under the following conditions:
• When you’ve selected it from the operation setup page
• First time use initialization
• The POWER and PAGE keys have been pressed simultaneously
• After a master reset has been performed
If your unit has powered up in AutoLocate mode, you can cancel the
mode by manually entering your lat/lon (see page 36) or changing the
mode from the setup page (see page 43).
69
Appendix D
Troubleshooting
gps 90 manual 8/6/98 10:01 AM Page 69