I'm working in a DGPS system, using a TRIMBLE netr9 as a base station and a u-blox LEA-6T as a rover. I've configured the base station to broadcast over tcp/ip RTCM correction and e put this correction on the usb port of my rover. I was expecting for something nearst to 0,5m of accuracy on my rover bus i've got something about 2m. Could you help me on this? Just to make you know, i need positioning in real-time and better accuracy.