How does DJI Mavic 3M use network RTK services without a 4G network card (including a SIM card)?

You can connect to the network RTK by using Wi-Fi on the remote controller.

Related Questions

Are Network RTK services of DJI Matrice 400 bound to the remote controller or the aircraft?

Remote Controller

Without 4G dongle (SIM card included), how can I use Network RTK services with DJI Matrice 400?

You can connect to Network RTK via Wi-Fi on the remote controller.

Are Network RTK services of DJI Matrice 4 Series bound to the remote controller or the aircraft?

The Network RTK services of DJI Matrice 4 Series are bound to the Remote controller.