Langer EMV-Technik GmbH offers a workshop for the application of ESA1 emission development system. In the workshop fundamental mechanisms of interference emission are observed, the structure of typical electronic devices is analyzed and possibilities are derived to carry out measurements during development with the help of ESA1. The function of the ESA1 is demonstrated on the basis of circuit models or assemblies of the customer. Various modifications or EMC measures are directly examined for their effect.