We have a GPS-RTK2 board we intend to use as a rover. Following the GPS-RTK2 hookup guide (https://learn.sparkfun.com/tutorials/gp … ng-further), we purchased a SparkFun Serial Basic Breakout - CH340C and USB-C to connect to the UART2/RTCM Correction pins to receive our corrections on. That board is connected by serial to a radio modem which receives locally broadcast RTCM 3.X corrections from a local base station. We have verified that the radio modem hardware works, as other receivers have been able to receive and process the RTCM corrections from it, and sniffing the serial cable in Tera Term shows data is being broadcast on it. We have also configured the device in u-center2 to set the baud rate of the UART2 port to match the 9600 baud of the radio modem. What else could we be missing for our receiver to get an RTK fix?
Check that the UART2 port is configured correctly. It’s good that you’ve got the baud correct, but be sure the port is set to accept RTCM3. I think it’s default on, so I doubt that’s the issue.
You can use u-center to inspect RTCM packets with the UBX-RXM-RTCM message. See: https://user-images.githubusercontent.c … 124a18.png
Also, UBX-MON-COMMS will give you insight into whether the ZED is throwing out all the incoming data, or if it’s parsing some of it.