Hi Matt and others,
I am supporting Steve's inquiries in Australia as a representative of the dealer Globalpos. I do not know your situation in the states other than what you have indicated above. What I can say is that we have, using the government CORS networks in Australia, successfully used RTK corrections using RTCM3 and wifi or bluetooth to a pc or controller that has a "mobile" connection to the web. To use WiFi -Sometimes the PC requires a small program to make an access point available from the PC. I use connectify at the moment (-although it doesn't work on a surface pro 3 at the moment). (about$10 or something like that off the web). We do not have any free SBAS in Australia. There are commercial L band suppliers or there are CORS networks that provide DGPS specific corrections over the internet at a reduced rate from the "normal" RTK corrections (approx. two thousand dollars per annum less) Our issue is the DGPS rover option is not available to purchase on a T2. It is available to purchase on a GISMore, we are just yet to test the connection to the specific network Steve wishes to use for these DGPS mapping corrections. A T2 might just have been a nice option if it could be used due to its higher overall capability to the GISMore.