I bought ardu’s simpleRTK3B Heading. I connected it to my computer via USB and started agopengps, but I can’t get gga and vtg data. For some reason, the ntrip data connected with agopengps is input to the rtk3b board via USB. In the browser it is rtkfix. I set the browser to send nmea data via USB, but I haven’t sent the data from rtk3b to my computer. USB1 is specified for the output of nmea data. Is this wrong? I also tried the output from the serial port, but it’s the same.