Chapter 3
16 Phoenix 300 Installation & Operation Manual
Dilution of Precision (DOP) Information
Press the key to display the PDOP, HDOP, VDOP, and TDOP values currently observed by the receiver.
The term “DOP” (Dilution of Precision) is an estimation of error caused by spacing between the satellites being
tracked and used in the GPS solution. Smaller values denote better accuracy. A value of 9.9 is displayed when
there are not enough satellites being tracked to provide a usable GPS solution.
TABLE 2. Dilution of Precision Abbreviations
Position Information
Press the key to display the Latitude and Longitude Coordinate screen.
These values indicate the current vehicle position in geographic coordinates.
DOP Definition
H (HDOP) Horizontal
V (VDOP) Vertical
T (TDOP) Time
P (PDOP) Position
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