Slingshot® RTK

 

Conventional RTKClosed Real-time Kinematic systems utilize a radio antenna to transmit differentialClosed Differential Global Positioning System is an enhancement to standard GNSS/GPS messages to provide better position accuracy. information from the base station to the rover. These systems may perform very well when the range between the base station and rover (baselineClosed In RTK correction systems, the baseline is the range between the base and rover. A maximum baseline defines the range between the base and the rover before RTK corrections begin to lose precision. Alternatively in some Raven field computers, a baseline is a segment of a boundary that can be used to create guidance lines and application zones.) remains fairly short, and when the rover maintains a direct line of sight to the base station. However, if the rover is operating too far from the base station, or if the line of sight is obstructed (e.g., a tree line, hills, buildings, etc.), the "sub-inch" accuracy of traditional RTK systems will begin to degrade or will require "repeater" stations to boost the correction information to the rover.

The Slingshot® RTK system utilizes cellular communication networks to transmit differential information from the base station to the rover via a Slingshot® Field Hub. This eliminates the line-of-sight concerns when using RTK systems in hilly terrain, around building sites, or in between tree lines or around tree groves.

The Field Hub is able to receive RTK corrections via a cellular data connection. Contact a local Slingshot® dealer for availability and subscription information.

To begin utilizing RTK corrections with a Slingshot® Field Hub:

  1. Connect your GNSSClosed Global Navigation Satellite System receiver to the serial port on the Field Hub using the appropriate Raven serial cable.

    Note:  Use only Raven approved serial cables designed specifically for your GNSS receiver or data overages may result. Contact a Slingshot® dealer for appropriate cable part number and ordering information.

  2. Set the receiver baud rate to 115200.
  3. Set the receiver to accept corrections.

    Note:  Depending on your receiver, this may require an unlock code. Contact a receiver dealer or manufacturer for more information.

Last Revised: Sep 2024