Garmin GTN 750 Pilot's Manual page 346

Foreword
Getting
Started
As the GPS receiver locks onto satellites, a signal strength bar appears for each
Audio & satellite in view, with the appropriate satellite number (01-32, SBAS satellites will
Xpdr Ctrl
have higher numbers) underneath each bar. The progress of satellite acquisition
is shown in three stages:
Com/Nav
Graph Symbol
FPL
No signal strength bars
Direct-To
Grey signal strength bars
Proc
Yellow signal strength bars
Charts
Cross-hatch cyan signal
Wpt Info
strength bars
Map
Solid cyan signal strength
bars
Traffic
Solid green signal strength
bars
Terrain
Weather
Nearest
The Time and other data may not be displayed until the unit has acquired
Music
enough satellites for a fix.
Utilities The sky view display at the left of the page shows the satellites currently in view
as well as their respective positions. The outer circle of the sky view represents
System
the horizon (with north at the top of the circle); the inner circle represents 45°
above the horizon and the center point shows the position directly overhead.
Messages
Each satellite has a 30-second data transmission that must be collected
(hollow signal strength bar) before the satellite may be used for navigation (solid
Symbols
signal strength bar). Once the GPS receiver has determined your position, the
GTN unit indicates your position, altitude, track and ground speed. The GPS
Appendix
16-8
Index
3. Touch the key for the desired SBAS provider.
4. Touch the Back key to return to the System Status page.
The receiver is looking for the satellites indicated.
The receiver has found the satellite(s) and is collecting
data.
The receiver has collected the necessary data but the
satellite is not being used in the position solution as it
has been excluded.
The receiver has found the satellite(s) but it has been
excluded by the FDE program as a faulty satellite.
The receiver has collected the necessary data, but is
not using the satellite in the position solution.
The receiver has collected the necessary data and the
satellite is being used in the position solution.
The "D" character inside the bars indicates differential
D corrections (e.g. WAAS) are being used for that
satellite.
Table 16-2 Signal Strength Bar Graph Description
Garmin GTN 725/750 Pilot's Guide
Description
190-01007-03 Rev. B