GSSI UtilityScan, Быстрый старт

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UtilityScan Quick Start Guide Page 34
Once you tap On you will see information populate the GPS status pane. You will see small dots appear in the crosshair
plot at the right. These represent location fixes. The more tightly clustered they are, the better your overall location
information. On the left you will see:
Lat/Long (or UTM):
Location coordinates displayed in the style you selected in GPS format.
Fix Quality:
This is a descriptor which is included in the NMEA-0183 data stream read from the satellites.
•
0: Fix not valid
•
1: GPS fix
•
2: Differential GPS fix.
•
4: Real-Time Kinematic, fixed integers.
•
5: Real-Time Kinematic, float integers.
Satellites:
The number of satellites from which the GPS is receiving signal. The more, the better.
HDOP:
Stands for Horizontal Dilution of Precision. This is a descriptive value of the quality of your GPS fix. The lower
the number, the better the precision. Typically, HDOPs less than 2 are considered excellent. Usually you will have a lower
HDOP with more satellites however it is possible to have many satellites and high HDOP if those satellites are clustered
together and not spread out. The GPS status icon at the lower-left corner will change color to reflect the HDOP. It will be
white for HDOP < 2, yellow for HDOP > 2, and gray for no GPS connectivity.
Note:
For external GPS you must connect your GPS to the tablet before starting the UtilityScan app. This will typically
be done though the Bluetooth pairing function on the tablet.