Kara Company owns and operates ReIL-NET, Illinois' largest and most complete CORS RTK Network.

ReIL-NET operates using Spider reference station software provided by Leica Geosystems. This software simultaneously measures, records and computes a Geodetic Network Solution correction. An internet connection to our server at Kara Company allows roving GPS units to resolve their autonomous, ambiguous measurements in real time. Our GNSS reference stations provide differential corrections to most brands of modern RTK GPS units. 

We currently support 47 base stations across Chicagoland, Western, and Central Illinois, and are routinely working to expand and densify our coverage throughout the state. 

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Please fill out the form below, and a Kara Company representative will get in touch with you to finalize your subscription sign-up, and to assist with setup. If you have a preferred contact method, please specify below. 

NOTE: You can expedite your setup process by purchasing a monthly or yearly MAX Network subscription on our website.

Click here to purchase (you don't have to fill out this form if you purchase your subscription via our website)

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