During the development phase the P12t mini burst field generator can be used to detect weak spots on assemblies. Fast transient magnetic field flows from the tip that follows the principle of a coupling clamp. The mini burst field generator has a TLL trigger input. Signals from out of the device under test or an external control logic can be used to synchronize the magnetic disturbance field. This allows for a precise noise immumnity analysis of complex circuits during certain operating conditions.