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LOG REAL-TIME KINEMATIC (RTK) POSITIONING
Corrections can be transmitted from a base station to a rover station to improve position accuracy to
centimetre level. The base station is the GNSS receiver that is acting as the stationary reference. It has a
known position and transmits correction messages to the rover station. The rover station is the GNSS
receiver that does not know its exact position but which can receive correction messages from a base
station to calculate differential GNSS positions.
In most cases, a data link between the base station and rover station (two NovAtel receivers) is required in
order to receive corrections. It is also possible to receive and use RTK corrections from established
networks. SBAS and L-Band corrections can be acquired with one receiver and are exceptions to the
base/rover concept, although neither are considered RTK positioning. Generally a link capable of data
throughput at a rate of 19200 bits per second, and less than 4.0 s latency, is recommended.
Once the base and rover are set up, configure them for RTCA, RTCM, RTCMV3, CMR+, CMR or
NOVATELX corrections. Below is a NOVATELX example (replace the latitude, longitude and height
coordinates shown with those of the base):
Base
serialconfig com2 115200 n 8 1 n on
fix position [latitude] [longitude] [height] (enter your own lat, long and hgt values)
generatertkcorrections novatelx com2
Rover
serialconfig com2 115200 n 8 1 n on
interfacemode com2 novatelx none off
NovAtel CORRECT with RTK (RT-2®), are real-time kinematic software products developed by NovAtel.
Optimal RTK performance is achieved when both the base and rovers are NovAtel products; however,
NovAtel CORRECT with RTK will operate with equipment from other manufacturers when using RTCM,
RTCMV3 and CMR messaging.
Refer to ProPak6 User Manual (OM-20000148) for additional information.
SECURITY
By default, minimal network/port security is set. It is the responsibility of the user to assess security
requirements and configure the ProPak6 as necessary. Refer to the security section of the ProPak6 User
Manual (OM-20000148) for security settings.
Additional Functionality
Refer to the ProPak6 User Manual (OM-20000148) for set up and installation instructions for CAN,
External Oscillator and other functionality.