User's Guide

2.4.2 Accuracy

Users can compare a true coordinate with RTAP2U’s high-precision coordinate in

real-time. The comparison is visible through a graph and numerical data on

DEVIATION PLOT in the RTAP2U Viewer.

① Click Info on the RTAP2U Viewer bottom bar and select DEVIATION PLOT on

the top bar.

② Choose the Input Type of the Reference Position. Click ENTER and type in the

coordinate needed to calculate the accuracy. Then click SET to apply.

 XYZ: ECEF

X, Y, Z coordinate (meter)

 LLH: latitude/longitude (degree), height (meter)

③ Instead of manually typing in the coordinates, users can also click CURRENT

POSITION to use the current RTAP2U coordinate for the Reference Position.

④ Click ▶ to start calculating the accuracy in comparison to the Reference Position.

⑤ Click ■ to pause the calculation.

Use the icons below the graph for tracking, zooming in and out, and more.

 : Zoom in and out

 : Start and pause the comparison recording

 : Set the recent comparison point as the center

 : Move to the origin of the graph

 : Restart the comparison recording

3) ECEF: Earth-Centered Earth-Fixed