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Heading accuracy
The heading accuracy that can be achieved by the dual antenna system in the RTs in
Table 7 is 0.2° 1σ per metre of separation in ideal, open sky conditions. The system can
provide these accuracies in static and dynamic conditions. A four metre separation is
required to reach the accuracy listed in Table 7. The maximum recommended separation
is five metre, at which it may be possible to achieve better than accuracy than that listed
in Table 7 if the structure is rigid, including temperature variation.
For single antenna systems, the heading is calculated from the inertial measurements.
The accuracies listed in Table 6 are achievable under dynamic conditions. Under static
conditions the heading accuracy of single antenna systems will degrade.
Non-ideal mounting of the GNSS antennas will reduce the heading accuracy, particularly
for dual antenna systems.
Environmental protection
The RT3000 and RT4000 products are rated to IP65. To achieve IP65 it is necessary to
have connectors fitted to both TNC antenna connectors and to use self-amalgamating
tape over the TNC connectors.
The RT2000 products have no environmental protection rating.
GNSS antenna operating temperature
The GNSS antennas have a much wider operating temperature range, from –55°C to
85°C, allowing them to be used on the outside of vehicles.
Safety information
RT2000 products have been tested to safety standard EN60950-1:2006 and A11:2009.
These safety standards will only apply when the RT2000 is used with the cables supplied
or with the RT-UPS.
Please note: if the equipment is used in a manner not specified by OxTS, the protection
provided by the equipment may be impaired.
Export control classification number
Export control regulations change, and so the classification number of the RT may also
change. The information presented here was correct when the manual was published. RT
products can fall under two different export control categories depending on the type of
accelerometer fitted internally. The type of accelerometer does not affect the
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