Garmin GPS 38 - Manual (Page 21)

Satellite Page
The GPS 38 Satellite 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 posi-
tion fix.
Sky View & 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
show’s 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; the inner circle is 45º above the
horizon; and the center point is a position directly over
your head.
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
38 has collected the necessary data to use the satellite for
positioning, the hollow bar will become solid.
Satellites in view but not
currently in use (03 & 17)
will be displayed in reverse
video, with the correspond-
ing signal strength bar “hol-
low”.
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.
R E F E R E N C E
Satellite Page
Overview
17
Status
Battery
Indicator
Satellite
Sky View
Horizontal
Accuracy
Signal Strength
Indicators
Satellite
Number
GPS 38 Man Rev B 7/23/98 4:32 PM Page 17