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The Normal vibration level is adequate for most circumstances. The RT is very tolerant
of vibration and has been used successfully in environments with more than 2 g RMS
using the Normal setting. If the velocity innovations are very high, and many GNSS
packets are being dropped, then this setting can be changed.
Typical situations where the High vibration setting should be used include those where
vibration mounts have been used, or where the RT and the antenna are mounted on
different sprung parts of the vehicle (e.g. the cab/chassis of a truck).
GNSS environment
Adjustment: select a predefined value from the drop down list.
If the system is used predominantly in open-sky, then the Open sky setting should be
used. In environments with a lot of GNSS multipath then Some obstructions or
Frequent obstructions can be used depending on the environment. This will allow less
accurate GNSS measurements to update the system and it also places more reliance on
the inertial sensors compared to the GNSS.
Unless the open-sky setting is used, the RT will not report accuracies that meet its
specifications.
Differential correction
Adjustment: click … button to open properties window.
An RT can be configured to use several different differential correction message types
on connector J3. Figure 28 shows the Differential corrections properties window and
Table 31 gives details on the correction types available.
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