Garmin GPS 400 Pilot's Manual And Reference page 42

1 5
PROCEDURES
NAV PAGES
Approach Examples
Satellite Status Page
Satellite Status Page
The satellite status page (the fifth NAV page) provides a visual reference of GPS
receiver functions, including current satellite coverage, GPS receiver status and
position accuracy. The satellite status page is helpful in troubleshooting weak (or
missing) signal levels due to poor satellite coverage or installation problems.
Sky View
Signal
Strength Bars
Satellite
Numbers
As the GPS receiver locks onto satellites, a signal strength bar will appear for
each satellite in view, with the appropriate satellite number (01-32) underneath
each bar. The progress of satellite acquisition is shown in three stages:
• No signal strength bars—the receiver is looking for the satellites indicated.
• Hollow signal strength bars—the receiver has found the satellite(s) and is col-
lecting data (see illustration at center left).
• Solid signal strength bars—the receiver has collected the necessary data and
the satellite(s) is ready for use (see illustration at bottom left).
The sky view display (at top left corner of the page) shows which satellites are
currently in view, and where they are. The outer circle of the sky view represents
the horizon (with north at top of the page); the inner circle 45° above the horizon;
and the center point directly overhead.
GPS Receiver
Status
Estimated
Position Error
(EPE) and DOP
Fifth Page
in NAV group