Why you should be using the Trimble SPS85x Series base station - Positioning Solutions
Trimble AgGPS 542 RTK base station
GPS Receivers
Trimble R8 Model 2 RTK GNSS Base Rover
Trimble's New GNSS Base Station Gives Users Improved Satellite Tracking and Remote Operation for Civil Construction, Geospatial and Agriculture Applications | Trimble, Inc.
Trimble 4700/5700/R7 - How to execute a real-time kinematic (RTK) survey from start to finish