Running an engineering house and dealing with emission/immunity issues all the time. Also have a small precompliance capability in house. This is a very good su

Running an engineering house and dealing with emission/immunity issues all the time. Also have a small precompliance capability in house. This is a very good summary to the topic! I really like the pointers to the pitfails like "notice the vertical ground plane next to the LISN". One thing to remember: if you see external EMC measures (shielding fingers, extra ferrites, copper tape, line filters) on the final product you can be sure the development has been too agile and regulatory compliance an aferthought. Happens way too often. One thing with precompliance in the office environment to keep in mind. The "magic environmental noise substraction" on EMI receivers does not work that well if noise is stronger than the signal. Just pure statistics at play.