That was about the lock in part. Most of the mavic footage I’ve seen seems to be digital at least, though I recall something about them changing the RF frequencies constantly to avoid jamming.
I don’t think I’ve ever seen one of those “American style” ground units in Europe. They all look like the one in the picture and are predominantly wall or roof mounted.
What they do here for (a good amount of) home car chargers is read out the electricity meter using their serial port and dynamically adjust the charge current to never take more than those 3x25A.
That was about the lock in part. Most of the mavic footage I’ve seen seems to be digital at least, though I recall something about them changing the RF frequencies constantly to avoid jamming.