Back 40 Precision designs and manufactures their own line of precision equipment including the RTKonnect and industry exclusive NTRIP client device that utilizes Wifi via serial cable for ease of secure in cab connectivity. In most cases this replaces the use of a modem and data plan. No need for an expensive static IP. Back 40s caster program uses a proprietary algorithm to calculate multi frequency code and phase measurements to create an accurate model of the current ionospheric layer. The majority of the systems in ag. only calculate to the first order. Back 40 stands out as being the ONLY company that has integrated 2nd and 3rd order error terms. This innovative breakthrough significantly reduces range error during high solar activity. During average solar activity 2nd and 3rd order terms are negligible and account for less than a few millimeters of error. However, during solar flares the second and third order terms, when left unaccounted for, can add up to 25 cm additional error. When other networks report outages Back 40 will still be working. Back 40 uses our proprietary model to create correction messages directly for BINR and NCT formats as well as RTCM 3.1 master auxiliary conceptual networked data. We eliminate the need to integer level phase ambiguity between reference stations by simply removing the ambiguity entirely. Our reference stations exclusively use the most up to date technology. This facilitates measured carrier phase distance to satellite at 1 mm.