Chapter 3 SMART7 Operation
SMART7 Installation and Operation User Manual v6
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RTK ASSIST will report the RTK solution type that was present before RTK corrections were lost, unless the
estimated solution standard deviation exceeds the threshold set by the
RTKINTEGERCRITERIA
command. If
this occurs, then integer RTK solutions will be downgraded to their float RTK equivalent.
RTK ASSIST is enabled by default, but can be disabled using the
RTKASSIST
command. To monitor the status
of RTK ASSIST, view the
RTKASSISTSTATUS
log.
Refer to the
Agriculture Commands and Logs Reference Manual
for log and command details.
RTK ASSIST typically provides 4 cm accuracy. However, if the RTK outage occurs during the first 30
minutes of receiver operation, the position accuracy provided by RTK ASSIST may be lower.
Additional information about enabling and using RTK ASSIST is available in the RTK ASSIST Applic-
ation Note (available from our website:
www.novatel.com/assets/Documents/Bulletins/APN-073-RTK-
).
3.10 Terrain Compensation
The Terrain Compensation feature corrects for errors in position caused by the roll and pitch of the vehicle. The
SMART Antenna senses the vehicle’s roll and pitch angle and, with the user-entered “height above ground”, com-
pensates the position output to give the position under the vehicle rather than at the antenna.
Vehicle motion is required to compute and obtain terrain-compensated positions.
As shown in
Figure 12: Terrain Compensation – Roll
on the next page and
Figure 13: Terrain Compensation –
on the next page, if a vehicle is operating on sloped terrain, the position will be in error by an amount pro-
portional to the roll or pitch angles.
