Thank you. I do have the GPS type set to 5 (NMEA). I am getting very good accuracy and Mission Planner is showing a status of “RTK fixed”. I am getting the Bad Health message, however, which you explained above is because updates are not coming fast enough at 1 Hz.
The C94-M8P is a little bit of a strange beast, unfortunately. If you dig into the schematics, you see that there is one UART that has its transmit signal split to 3 ways and its receive signals "ored together 3 ways: (1) to a 3.3V logic level header, (2) through a typical RS-232 level shifter to a DB9 connector, and (3) to the radio that is used for RTK corrections. So, it is OK for up to 3 devices to be listening but only one device can transmit into the C94-M8P.
Since we are trying to use the built-in radio for the RTK corrections, the C94-M8P acting as rover can’t also receive setup info from the PixHawk. At least, that is my belief, because the two “transmitters” are not synchronized so data would be garbled and lost.
Also, according the the C94-M8P docs, the baud rate for the radio needs to be 19,200. That means we are stuck with that since we are sharing the UART as described above.
That is probably as clear as mud!
Anyway, I plan to try using Mission Planner for now as the RTK correction device to see how that goes.
I am fighting another issue with the compass being off. I will post that in its own thread, I guess, as I have already been accused (correctly, I might add) of highjacking someone elses post the other day!
Thank you all for the excellent work!