In the product page, there is this statement " Keep providing accurate positioning in environments that are out of reach of GNSS signals (tunnels, parking garages, urban canyons with bridges) with additional inputs from inertial sensors (based on dead reckoning algorithms)." Does the RTK module have an IMU built in as well?
The ZED-F9P doesn’t contain a complete IMU, you can fuse sensors in your own implementation. The Sirius RTK GNSS Rover has an RM3100 mag sensor embedded.
With the F9P modules, you can set up your own external Dead-Reckoning system by integrating an external micro-controller with all the data from external inertial sensors, building algorithms that combine the sensor and navigation data and adapt to the dynamics of the vehicle.