
Central Illinois Ag is THE source for Precision Farming and Auto Guidance knowledge, sales
and support.
Precision Agriculture
Central Illinois Ag is your one-stop dealership for all your precision farming needs. We are the third
largest Case IH dealer of precision farming products in North America, and we will continue to be an industry
leader in the years ahead.
In 2007. Central Illinois Ag established an RTK network to meet customer demand for
precision ag technology. Central Illinois Ag is dedicated to providing today's producers with the most
up-to-date precision ag equipment. We proudly offer precision ag products from Case IH, Ag Leader, Trimble,
Rawson, and Rinex. We also sell True Count planter clutches for customers wishing to optimize their planters.
What is an RTK Network?
RTK is a process where GPS signal corrections are transmitted in real time from a reference receiver at a
known location to one or more remote rover receivers. The use of an RTK capable GPS system can compensate
for atmospheric delay, orbital errors and other variables in GPS geometry, increasing positioning accuracy
up to within a centimeter. Used by engineers, topographers, surveyors and other professionals, RTK is a
technique employed in applications where precision is paramount.
RTK is used, not only as a precision
positioning instrument, but also as a core for navigation systems or automatic machine guidance, in
applications such as civil engineering and dredging. It provides advantages over other traditional
positioning and tracking methods, increasing productivity and accuracy. Using the code phase of GPS
signals, as well as the carrier phase, which delivers the most accurate GPS information, RTK provides
differential corrections to produce the most precise GPS positioning.
Central Illinois Ag RTK Network Coverage Area:
We currently have over 500,000 acres covered by our towers and are adding more on a regular basis.
We also work with surrounding dealers that have adjoining networks to provide a seamless transition when moving
from one area to another. Please contact any of our salesman or
precision farming specialists to find out if you are covered, or if we are coming
to your area soon.
Precision Agriculture Products
We have the experience to help producers capture the competitive
advantages offered by precision farming technology and the staying
power of an established dealership to continue to support our
customers.