GPS Add-on > GPS Position Window

GPS Position Window

When SuperGIS Desktop receives GPS signals, users can read the current GPS position information with SuperGIS Desktop.

1.	Open "GPS" toolbar, click "GPS" drop-down menu and click "Position Window."

2.	"GPS Position" window opens and you can learn GPS current position information.

3.	"Position" records Latitude, Longitude, Altitude, speed and aspect.

4.	"Dilution of Precision" records three items of HDOP, VDOP, and PDOP.

5.	"UTC Time" is Universal Time and "UTC Date" is Universal date.

6.	"Satellite Count" records satellite number of which receives complete signal.

7.	"Status" records the GPS on or off and data receiving.

NOTE: Dilution of Precision: the quality of GPS receiving gets profoundly involved in the geometry shape formed by received satellites and user. The deviation value caused by the geometry shape is called precision value intensity. Smaller precision value refers to the better geometry shape formed by satellites concerned and user. Therefore it calculates greater quality result with those signals.

PDOP: 3D dilution of precision is the square root value of deviation square sum of Latitude, Longitude and Altitude.

HDOP: 2D dilution of precision is the square root value of deviation square sum of Latitude and Longitude.

VDOP: Dilution of precision of vertical coordinate is the deviation value of Altitude.