Novatel SMART2 Installation And Operation User Manual page 32

Chapter 3 SMART2 Operation
After the measurement has been made, use the TILTFILTER command to set the height of the
SMART Antenna.
To set the height in meters, enter the following command:
TILTFILTER switch antennaheight
Where:
switch enables or disables Terrain Compensation
antennaheight is the height measurement in meters
For example, to enable Terrain Compensation and set the SMART Antenna height to 3.5 meters, enter the fol-
lowing command:
TILTFILTER ENABLE 3.5
For more information, refer to the TILTFILTER command.
Changes in tire pressure over time can potentially cause errors in Terrain Compensation. This is
because the height of vehicle can vary with tire pressure.
Leveling the Terrain Compensation Sensor
Two-stage zeroing should be used to level the Terrain Compensation sensor whenever possible.
Two-Stage Zeroing
Two-stage zeroing is the best way to level the Terrain Compensation sensor.
SMART2 Installation and Operation Manual v4
Figure 10: Antenna Height Measurement
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