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15-7190-01004-03 Rev. B
Garmin GTN 625/635/650 Pilot’s Guide
Foreword
Getting
Started
Xpdr Ctrl
Com/Nav
FPL
Direct-To
Proc
Wpt Info
Map
Traffic
Terrain
Weather
Nearest
Music
Utilities
System
Messages
Symbols
Appendix
Index
15.2 GPS Status
15.2.1 GPS Status Page
The GPS Status Page provides a visual reference of GPS receiver functions,
including current satellite coverage, GPS receiver status, position accuracy, and
displays your present position (in latitude and longitude) and altitude.
The Satellite Status Page is helpful in troubleshooting weak (or missing) signal
levels due to poor satellite coverage or installation problems. You may wish to
refer to this page occasionally to monitor GPS receiver performance and establish
a normal pattern for system operation. Should problems occur at a later date, you
may find it helpful to have an established baseline from which to compare.
1. While viewing the System page, touch GPS Status.
GPS Receiver Status
Sky View
of satellite
positions
Signal Strength
Bars
Satellite Numbers
Horizontal Figure
of Merit
Estimated Position
Uncertainty
Vertical Figure of
Merit
Horizontal Dilution
of Precision
Acquiring
Satellite, not
ready for use
Satellite
acquired
and used for
position fix
Satellite acquired,
used for position fix,
and has differential
corrections
Lat/Lon Position
Phase of Flight
Tracked
Satellite,
not used
Touch To Select
SBAS Provider
Figure 15-7 GPS Status Page
2. If desired, touch the SBAS key to select an SBAS provider. The
SBAS list is based on the Aviation database. See the
Satellite-
Based Augmentation System
section later in this section for
details.
3. Touch the Back key to return to the System Status page.