The multiple chopping gap is used to chop  lightning impulses on the front and/or on the tail.

The multiple chopping gap serves  simultaneously as a load capacitor for the impulse generator and allows  excellent reproducibility of the chopping time and does not distort the wave  shape until the chopping point.

The sphere distance is automatically  adjusted and operated by the controls of SG2010 and SG2011. A manual control  box is available as well.