Diagnostic Data Logs Tab

Select information from drop-down menu.

• Position Dilution of Precision (PDOP)–Is a combination of vertical and horizontal error (or three dimensional). A lower PDOP value is better. A value below 2 is considered optimal.
• Satellites Used–Is the number of satellites receiver uses in current position solution. Satellites are not used in solution until they get above five degrees elevation mask for WAAS/EGNOS, SF1, or SF3. Satellites are used until they drop below five degrees elevation mask for WAAS/EGNOS, SF1, or SF3.
• Navigation Mode–Is represented as three different types; No Nav, 2D, and 3D. Navigation Mode helps determine if satellite signal has been dropped in last 60 minutes.
• Differential Mode–Displays level of differential signal received over past 60 minutes. Level of signal purchased on receiver determines highest point on bar graph.
• GPS Signal Quality–Shows quality of signals being received from global positioning system (GPS) satellites. Unlike GPS Accuracy Indicator, Signal Quality does not include WAAS/EGNOS, SF1, SF3, or amount of time signal is received.
• Differential Signal Quality–Is the strength of StarFire™ network signal (SF3 or SF1). Normal range is from 5 to 15, but maximum reading on indicator is 10. Numerical value is displayed to right of indicator. Any value above 5 is normal.
• GPS Accuracy–Is a relative indication of overall differential GPS performance.