Thales Navigation gps receiver CGRS Manual

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Thales Navigation gps receiver CGRS
104 Promark2 Users Guide
The
Satellite Status screen provides you the status of GPS satellite acquisition and
tracking by the receiver. Upon entry to this screen, satellites available for tracking are
displayed on the sky plot. Once a satellite is acquired, its number is displayed in
reverse video (black box with white numbers) and a bar appears in the table below
representing signal strength. When 4 healthy satellites above a 10º elevation are
acquired, storage of GPS satellite data is ready to begin. The display then
automatically changes to the Survey Status screen. You can return to the
Satellite
Status
screen by pressing the Nav/Surv button.
At the bottom of the
Satellite Status screen are two status indicators: power, on the
left, and memory, on the right. The memory status indicator shows, both graphically
and numerically, the percentage of memory free for data storage. Once data storage
begins, the percent number will flash, giving a visual cue that data collection has
begun.
The power status indicator shows a fuel-gauge like graphic of remaining power when
internal batteries are in use. If an external power source is connected to the receiver,
an icon that looks like an electrical power plug appears on the display.
To determine the impact of obstructions at the survey site, use the sky plot to visualize
which satellites will be blocked by the obstructions. This will help to determine if the
site is suitable for GPS observation.
14. From the
Satellite Status screen, press the Nav/Surv button.
While displaying the
Satellite Status screen, press the Nav/Surv button to bring up
Figure 3.67 Satellite Status Screen
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