There is no braking or "Parking" feature on Furuno open array radars but they are timed as Taniwani said. Sometimes the wind or something moves them off so you might have to do what I call the "Broomstick" adjustment (using a broomstick to reach up and straighten it). Winds, hitting the breakers before it has been put to standby and many other things can cause it not to be squared up but most of the time; it stops in a good location. (keep the broom handy when needed) :cool