Hi,
I have a NEO-6M bare module which I attach to the host PC with a FTDI serial to USB cable.
Starting gpsd in debug mode with -N -D 5 shows me that gpsd starts. Starting cgps shows a lot of debug messages, and I see that gpsd switches NEO-6M into UBX mode. Using a program like foxtrotgps shows me that I am getting correct positions from the module outside in my garden.
Now, I have applied for a username and a password for experimental use of NTRIP in Europe. I apply the most close mountpoint (baseline 130km) to the command line and start gpsd again. In the log, I can see that gpsd contacts the NTRIP server (or is it caster) and get data from it. However, I am not able to tell if the NEO-6M module is reacting to whatever RTCM messages is being sent to it. The lattitude, longitude and altitude error indicators in cgps does not change to the better or worse with or without RTCM messages from NTRIP.
I have used the NTRIP inspecting features of RTKLIB to inspect which sattelites the mountpoint at the "base" station sees, and the bird numbers in the base correspond to the bird numbers indicated in xgps. I know the base line is a tad long, but I was hoping to see at least a bit more accuracy than EGNOS which I think (but not know for sure) the NEO-6M is using automatically
This became TL;DR; but core question is: Where in the log can I see if a GPS module react to RTCM messages?