Garmin GPS 90, Руководство пользователя и справочник

Страница: 42 / 92

The GPS 90 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.
The sky view and signal strength bars give you an
indication of what satellites are visible to the re c e i v e r,
whether or not they are being tracked, and the signal
quality. When a satellite is visible but not being tracked,
the signal strength bar will remain blank and the sky
view indicator will remain highlighted in reverse video.
If you are losing coverage or having trouble acquiring a
position, use the sky view and signal strength bars to ver-
ify proper antenna and receiver installation. If you have
lost coverage and the unit has trouble reacquiring satel-
lites, try shutting the unit off momentarily to reset the unit.
For more information on installation, acquiring satellites
and using the GPS 90 in other applications (hunting, fish-
ing, hiking, etc.), please see Appendix A & D.
Receiver status is indicated at the top left of
the screen, with the current horizontal accuracy (in feet
or meters) at the top right. The status will show one of
the following conditions:
Acquiring— the first status you’ll see in normal oper-
ation. The GPS 90 is looking for satellites to track
based on its last known p o s i t i o n .
34
Status Page
Overview
The satellite sky view
shows a bird’s eye
view of the position of
each satellite relative
to the receiver’s last
known position.
The outer circle rep-
resents the horizon
(north up); the inner
circle 45º above the
horizon; and the cen-
ter point a position
directly over your
head. Use the sky
view to help deter-
mine if there are
obstructions shading
your reception of
satellite signals.
⌃
Signal strength
indicator bars
Operating
mode
Battery level
indicator
Satellite
sky view
Estimated
position error
Satellite numbers
gps 90 manual 8/6/98 9:59 AM Page 34