I work in automotive testing using GPS and wanted some thoughts on using some of our equipment in the agricultural area especially for RTK correction. My local farmer friend spends a fortune with John Deere and I think I may help him save some money. So I have a 10Hz RTK GPS receiver unit with a built in modem (data sim required) with a CAN and RS232 serial output and positional accuracy <2cm. This is happy to conect to pretty much all the regular RTK correction services and also NTRIP services provided through the SNIP software program. Where I need technical help is whether this would be suitable to replace a Starfire3 or indeed work with the JD system, how it would be connected etc.etc. Obviously the local JD man is not very helpful so I thought I would put a note on here to see what your collective thoughts are. This item is about £2000 depending on exactly what is required. If you want to see more about it search for VBOX Sigma using your favorite search engine. Thanks in advance.