The invention pertains to a method and apparatus for preparing a printing form from a precursor, particularly a method and apparatus for preparing the printing form by thermally treating a photosensitive precursor having a photopolymerizable layer. The antenna is capable of being mounted on a printed circuit board. The portable testing aid also includes a user interface that transmits data to the interface adapter and a display that communicates the testing and maintenance information to the user. Manufacturing tolerances often result in the obtained components having different performances.