General Question re: moving the base station

I’m investigating getting a reach system for 2+ meshed mobile ground robots. A general question about the base station - how long does it need to be stationary to act as a “good” base station for the rover? Does it need to stay stationary while the rover is moving?
My thought is multiple robots driving around and meshed together wirelessly. Whichever one is not moving for some period of time acts as the base station for the others. Is this crazy or possible?

There is an option where you set base as a moving base. Never tried it my self but should give relative accurat position from base to rover.

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