• A coil connected to a RF generator, and another connected to an oscilloscope are on separate carts.
  • At low frequency, the only signal that can be detected is the near field (inductive) signal when the coils are close together.  The wave field signal cannot be detected.
  • At high frequency as the carts are moved apart, the near field signal fades but the wave field signal remains fairly constant.
        (use 80 MHz generator and 100 MHz scope)