Accessing Base Station Position Data via RTK2go Without Rover Connection

[MatteoMariani99]

Is it possible to read the streaming data from a base station through RTK2go, without any physical connection to the rover receiver, only to obtain information about the base station position?

[semuadmin]

Hi @MatteoMariani99

Yes, absolutely. The NTRIP Client operates independently of any connected GNSS receiver.

Simply open the NTRIP Configuration panel, enter the server address rtk2go.com, port 2101, and select the required mountpoint. The approximate base station position can be found in the mountpoint's sourcetable entry e.g. in the following example, I've selected mountpoint HOST_H7 (Straslund) and, if I scroll a little to the right, I am able to see that the base station location is roughly 54.34, 13.08:

If you connect to this mountpoint, the exact location is contained in the RTCM3 1005 or 1006 (Antenna Reference Point Data) message, e.g. in the following message from HOST_H7, the DF025, DF026 and DF027 attributes represent the ECEF X,Y,Z coordinates of the base station:

<RTCM(1005, DF002=1005, DF003=0, DF021=0, DF022=1, DF023=1, DF024=1, DF141=0, DF025=3629975.4848, DF142=1, DF001_1=0, DF026=843134.12, DF364=0, DF027=5158868.4438000005)>

FYI pynmeagps provides a utility for converting ECEF coordinates to Lat/Lon/Height:

from pynmeagps import ecef2llh
llh = ecef2llh(3629975.4848, 843134.12, 5158868.4438000005)
print(llh)

(54.33930445994695, 13.07622566773284, 19.839985971804932)

Hope this helps