RT User Manual
Revision: 190902
11
RT product family
The RT product family is split into three device types (one of which is the RT1003
which has its own manual, available to download at support.oxts.com). The other two
product device types are:
•
RT500s (v1)
Fitted with lower-cost GNSS receivers. The RT500 is a dual antenna model and is
GLONASS enabled. 100 Hz and 250 Hz versions are available. An optional BeiDou
upgrade is available.
•
RT3000s (v3)
Survey-grade GNSS receivers provide high-precision position and velocity
measurements even in high multipath environments. Can be GLONASS and BeiDou
enabled. The RT3000 L1 only mode is single antenna only and does not provide RTK
position accuracy. The RT3000 with RTK support is dual antenna. 100 Hz and 250 Hz
versions are available. The RT3000 is also able to run the OxTS RT-Range Hunter
feature codes for ADAS testing.
The options contained within each device type are listed in the “Specification” section
on page 16.
Single antenna
An advanced algorithm in the RT software means most road vehicle customers are able
to use a single antenna system. The Heading lock and Advanced slip features allow RT
devices to maintain an accurate heading while stationary and while driving with low
vehicle dynamics.
Single antenna systems can experience reduced heading accuracy on aircraft, boats or
in low-speed land vehicles.
Dual antenna
Dual antenna systems provide high accuracy heading information and almost constant
heading performance under all conditions.
For aircraft or marine applications, or road vehicle applications on low-friction surfaces
(e.g. ice), a dual antenna system is recommended to maintain high accuracy heading.
Advanced processing in the RT allows relock to occur after five seconds of a sky-
obstruction – unlike GNSS-only systems which can take several minutes; in this time
the RT’s heading will not have significantly degraded. The fast relock time is made
possible because the RT’s own heading is used to resolve the ambiguities in the GNSS
measurements. Resolution of these ambiguities is what normally takes several minutes.