Using Special Utilities 6-23
Message Log
The lower left portion of the GPS Status tab shows a summary of raw data
string received from satellites which can only be viewed but not editable.
The Message Log window is auto-scrollable and will be cleared as soon as
GPS signal is disconnected.
Satellite Map
The upper right portion of the GPS Status tab shows the satellites
discovered and are placed on the satellite map according to their
parsed latitude and longitude. Satellites in use are displayed in yellow color
with their PRN number while satellites in view but not in use are displayed
in blue color.
Signal Indicator
The lower right portion of the GPS Status tab shows the 12 satellites’ signal
indicator. The length of the green bar underneath each satellite changes
dynamically, the stronger the signal the longer the bar shown. Beneath
each signal bar is the PRN number of each discovered satellite (“00” is
shown when GPS module is not functioning or satellite was not
discovered).
Open/Close GPS
This button allows you to test the GPS module. Upon clicking on Open GPS,
the following three conditions may be shown:
z GPS module has successfully connected –
The button changes from “Opening . . . “ to “Close GPS.” The item
Acquisition Status under the Data Summary portion of the GPS Status
tab will change from “Inactive” to “Acquiring . . . “ and begin the
positioning process. It will then change to “Acquired” when GPS
module has successfully been positioned.
z GPS COM port is not available –
When other GPS program is running, a warning window pops-up and
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