Centre county Pennsylvania, USA | Thanks for that clarification Chris, I think I understand now, need to be "fairly close" to a networked ground reference station (CORS or other) to get high quality RTK correction service from that network.
I'm puzzled by the posts from folks expecting to get RTK correction service from Iowa CORS network, soon. When I surf CORS website and click on map of the currently operating CORS ground reference stations, I can't find any in Iowa that are currently providing real time RTK corrections. Either CORS map of ground reference sites is not current for Iowa, or Iowa CORS RTK network will be using CORS ground reference stations in another state ?
Here (again) is link to CORS web site that has map of all currently operating CORS ground reference stations in USA:
http://www.ngs.noaa.gov/CORS/
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