The progress of satellite acquisition is shown in three stages:
•
No signal strength bars
—the receiver is searching for
satellites.
•
White signal strength bars
—the receiver has found the
satellite and is collecting data.
•
Green signal strength bars
—the receiver has collected the
necessary data for this satellite.
Receiver Status
The receiver status field displays one of the following conditions:
•
Searching the Sky
—the receiver is searching for satellites.
•
AutoLocate
—the receiver is searching for any satellite for
which an almanac was collected.
•
Acquiring Satellites
—the receiver is searching for, and
collecting data from, satellites visible at the last known or
initialized location, but has not acquired a fix.
•
2D GPS Location
—At least three satellites are acquired and
a two-dimensional position fix is calculated. “2D Differential”
appears if you are receiving DGPS corrections in 2D mode,
and a “D” appears on the strength bar of satellites being
corrected.
•
3D GPS Location
—At least four satellites are acquired and
a three-dimensional fix was calculated. “3D Differential”
appears if you are receiving DGPS corrections in 3D mode,
and a “D” appears on the strength bar of satellites being
corrected.
•
Lost Satellite Reception
—the receiver is no longer tracking
enough satellites for a 2D or 3D fix.
•
Receiver Not Usable
—the receiver is unusable, possibly due
to interference or abnormal satellite conditions. Restart the
unit to reset the receiver.
•
Simulating GPS
—the receiver is in Simulator Mode.
•
GPS Off
—the GPS receiver is turned off.
GPSMAP 580/585 Owner’s Manual
5
Getting Started