Satellite Status Page - Garmin GPS 40 Owner's Manual & Reference

Satellite Status Page

Status
Battery
Indicator
Satellite
Number
The GPS 40 satellite status page displays the status of
various receiver functions. The status information will help
you understand what the GPS is doing at any given time,
and tell you whether or not the receiver has calculated a
position fix.
Sky View and Signal Strength Bars
The sky view and signal strength bars give you an indi-
cation of what satellites are visible to the receiver, whether
or not they are being used to calculate a position fix, and
the signal quality. The sky view in the center of the page
shows a bird's-eye view of the position of each satellite rela-
tive to the receiver's last known position. The outer circle
represents the horizon (north up); the inner circle 45º
above the horizon; and the center point a position directly
overhead.
When the receiver is looking for a particular satellite,
the corresponding signal strength bar will be blank and the
sky view indicator will remain highlighted in reverse video.
Once the receiver has found the satellite, a hollow signal
strength bar will appear, indicating that the satellite has
been found and the receiver is collecting data from it. The
satellite number in the sky view will also change from
reverse video to normal presentation. As soon as the GPS
40 has collected the necessary data to use the satellite for
positioning, the hollow bar will become solid.
Horizontal
Accuracy
Satellite
Sky View
Signal Strength
Indicators
Reference
Satellite
Status Page
Satellites in view but not
currently in use (03 & 17)
will be displayed in reverse
video, with the correspond-
ing signal strength bar
'hollow'.
Once a satellite in view is
usable for positioning, the
satellite number will change
from reverse video and the
signal strength bar will
become solid.
17