The 218 was in a lot of ways different from the 217. The 218 had the posibility to switch between 6 frequencies in flight by the operator. The display was driven with a a motor switch in the so called A/N way. A modeof electrically switch the direction of the radar beam from side to side or up and down, giving two imigies on the CRT.
The single tube crt was switched by the operator to show the horisontal view or the vertical. The picture was looking like the FuG 220, only the 220 showed both horisontal and vertical at the same time, the 218 was switched by the operator.