 This joystick had on-off switches rather than analogue sensors.Both the Hs 293 and Fritz-X used FuG 230 "Straßburg" radio receivers in them to send the "Kehl's" control signals to the ordnance's control surfaces.A comparable joystick unit was used for the contemporary American Azon steerable munition, strictly to laterally steer the munition in the yaw axis only.