D 12 Glossary
CenterPoint™ RTX™
Positioning correction service for satellite communication systems. Delivers GPS or GNSS enabled
corrections via satellite directly to your receiver. Does not require a base station or cellular data
plan. CenterPoint RTX corrections are provided on as subscription basis.
CenterPoint™ RTX™ for cellular
Positioning correction service for cellular communications. Delivers corrections via cellular network
directly to your receiver. Requires a cellular data plan.
CenterPoint™ VRS™
Virtual reference station. Positioning correction service for cellular communication systems. Enables
RTK (Real-Time Kinetic) corrections over a large geographic area where robust cellular data coverage
is available. Provides high accuracy for guidance applications throughout the whole coverage area.
Requires a cellular data plan. Uses a cellular communication modem, such as the DCM-300 or
Ag3000. Relies on CORS.
Client
The customer for whom the work is being done.
Controller orientation
Correctly associate the outputs of the Autopilot controller sensors with the direction of the vehicle.
Correction service
A service which provides corrections to create a higher GPS accuracy.
CORS (Continuously Operating Reference Station) network
A network of GPS/GNSS reference stations situated within the coverage area to transmit RTK (Real-
Time Kinetic) corrections to the cellular modem. The distance between the reference stations and
the modem on the vehicle does not affect accuracy. CORS works well in areas with spotty RTK radio
tower coverage.
Curved line
A guidance line you define on your field. You begin recording and drive until you are at the end of
the curved line or segment, then stop recording. Guidance lines are for use with automated
steering.
D
DGNSS
Differential GNSS positioning. The GNSS receiver uses corrections from WAAS/EGNOS satellites or
from OmniSTAR HP, XP, G2, or VBS satellites. These differential systems use special algorithms to
provide differential corrections that allow the rover receiver to calculate its position more
accurately. Not all corrections services support the use of GLONASS satellites in their solution.
DGPS
Differentially corrected Global Positioning System (GPS).
Version 1.075, Revision C TMX-2050 Display User Guide 331
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