Chapter 5 – System Setup
31
Correction sources
Correction
Source
Description
Autonomous Let the receiver find any free available satellites. Will
not use any correction. Precision: 2 - 5 m.
Automatic Let the receiver select the best available correction
source.
WAAS Use Wide Area Augmentation System. North America
only. Precision: sub-meter.
EGNOS Use the European Geostationary Navigation Overlay
Service. Europe only.
Precision: sub-meter.
MSAS Use Multi-functional Satellite Augmentation System.
East Asia only. Precision: sub-meter.
OmniSTAR
VBS
Use OmniSTAR Virtual Base Station (VBS) correction.
Precision: sub-meter.
RTK Use Real Time Kinematic navigation. Precision: 2 cm.
RTK
(External
Modem)
Use external modem connected to GPS receiver for
RTK corrections. Precision: 2 cm.
RTK
(NTRIP)
Use a cellular delivered RTK correction source from a
network provider.
Precision: 2 cm.
DGPS
(External
Modem)
Use an external modem to import DGPS corrections
from a network provider. Precision: sub-meter.
DGPS
(NTRIP)
Use a cellular delivered DGPS correction source from a
network provider.
Precision: sub-meter.
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