Unable to use RTKRCV for precise single point positioning of BDS

[Loose-zhang]

dear developer：
Real-time PPP with RTKRCV cannot be achieved using only BDS, and BDS is not included in multi-constellation scenarios.
I am currently using the HKWS station and the SSR source SSRA00CNE0.
How can I resolve this issue?

[ourairquality]

Was able to get both a PPP solution and a RTK fix using just BDS or BDS along with G,E,J and with the current demo5 branch, and using another IGS base station not HKWS. Perhaps it is an issue with the signals being used, try 'pos1-frequency=4' and have a look at the observation data using the 'obs -4 1' command and check that there is data, and check all frequencies with 'sat -4 1'.

[Loose-zhang]

Was able to get both a PPP solution and a RTK fix using just BDS or BDS along with G,E,J and with the current demo5 branch, and using another IGS base station not HKWS. Perhaps it is an issue with the signals being used, try 'pos1-frequency=4' and have a look at the observation data using the 'obs -4 1' command and check that there is data, and check all frequencies with 'sat -4 1'.

I replaced 5FRC00AUS0, GMSD00JPN0, and TKBG00JPN0, and changed SSR to SSRA00CAS0. I modified pos1-frequency to l1+12+15+l6 (4), and used obs -4 1 and sat -4 1 as shown in the figure below. However, I found that BDS satellites were not parsed in the sat output.