Garmin GPS 72 - Manual (Page 44)

42
Introduction
42
Reference
Setup Menu — ‘General’ Tab
The ‘General’ Tab contains settings for the Receiver Mode, WAAS, Backlight Time Out,
Beeper, and Language. To change a setting, highlight the fi eld then press ENTER. Make
your selection then press ENTER to activate the selection.
Mode — The Mode selections are ‘Normal’, ‘Battery Saver’ and ‘Simulator’.
‘Normal’ — This is the default mode set from the factory. Use this setting for best
performance.
‘ Battery Saver’ — When ‘Battery Saver’ is selected, the receiver is optimized to save
battery power. You may experience slower screen updates, but should notice a signif-
icant increase in battery life. While in Battery Saver mode, the unit will not receive
WAAS satellite signals.
‘ Simulator’ — When in ‘Simulator’ mode the GPS receiver is turned off and the unit
simulates satellite reception. Use the Simulator mode when the unit is indoors and
you wish to practice with the unit.
‘ WAAS’ — WAAS is an acronym for “Wide Area Augmentation System”. You can use
the WAAS capability of the GPS 72 to increase the accuracy to approximately 3 meters.
When enabled the GPS receiver searches for a WAAS satellite, then receives data that
will help correct differentials in the GPS signal. When the unit is using WAAS data, a
“D” will be displayed in the Satellite Strength Indicators on the GPS Information Page,
and the receiver status will indicate a 2D or 3D Differential Location.
Currently the WAAS system is not fully operational. There are two WAAS satellites in
place, one over the Pacifi c Ocean and one over the Atlantic Ocean. You must have a
clear unobstructed view of the sky to receive a WAAS signal, even then, at times it may
not be possible to receive a WAAS signal.
For more information on the WAAS system visit the Federal Aviation Administration
Web Site at (gps.faa.gov).
Setup Menu — ‘General’ Tab
Main Menu
General Tab
190-00294-00_0B.indd 42 9/25/2002, 2:37:29 PM