Data Source configuration

I am an RTK with one F9P.
Data Source configuration?
Tab fix:
I selected GGA or RMC is possible?
Tab cap gps:
Fix or GPS (vtg/rmc)?

thank you for these clarifications

For a single F9P you need:

Fix from GGA
Heading from: fix to fix (or you can try VTG but with only f9p use fix to fix.
Fix to fix means AoG calculates the current heading between two fixes.
RMC is not much used but possible