What is the best way to hook up my new Emission Control filter?
Many times when a filter selection is based solely on insertion loss, the result is a lower level of performance than anticipated and at a higher cost. The extremely high insertion loss numbers are rarely achieved in actual installations compared to the data sheet measurements made under laboratory test conditions. Select a filter based on both the application and the EMI specification. To gain maximum benefit, pay attention to the installation of the filter by following these guidelines: 1.) Maintain a RF Ground: Mount the filter as close as possible to the EMI source. The filter and the EMI source must be mounted on a common ground plane in order for the filter to bypass the EMI currents to ground and return them to the source. It is imperative that this ground connection be a low impedance at RF frequencies. Grounding the filter case to the source equipment thru a two-foot length of 12-gauge wire is totally inadequate. Mounting both within inches of each other on a common metal plat
