GNSS Module Series
L26-DR EVB User Guide
L26-DR_EVB_User_Guide 25 / 28
6.2. L26-DR (UDR) EVB
The installation of L26-DR (UDR) EVB is relatively more demanding, one of the X, Y and Z axis, shown in
the following figure, should be perpendicular to the horizontal plane, and the deviation should be less than
20°. In this case, there is no limit to the placement direction on the plane formed by the other two axes.
For instance, if axis Z is perpendicular to the horizontal plane, there is no limit to the mounting direction of
the EVB on the plane formed by axes X and Y.
Y
X
Z
Figure 21: Axis of L26-DR (UDR) EVB
6.2.1. Calibration Procedure
Step 1:
Install the EVB on a vehicle and connect the antenna.
Step 2:
Power on the EVB.
Step 3:
Keep the vehicle unmoved for 30s~60s.
Step 4:
Then start the vehicle and drive under strong GNSS signals, with speed changed for 2 times.
