RTK or real-time kinematic technology uses additional stations on the ground to correct errors in the GPS data and therefore make location positioning more accurate. While a conventional GPS receiver simply captures signals from satellites in space and uses that data to determine its location, speed, and time, RTK systems use two components (a base station and a receiver) to determine location very precisely. First, an RTK station receives and processes a satellite signal, correcting for errors, and then sends the corrected signal to the receiver.
In some areas, you will be able to use RTK receivers
without needing to purchase a separate base station. This is because these areas are covered by publicly available RTK signal networks that can be used for a fee or free of charge. If your area is not covered by an existing RTK network, you will need to purchase and install a separate RTK base station on your property.