EMI test labs must insure repeatable electromagnetic Interference (EMI) measurements. This is often accomplished by calibrating the EMI test site at regular intervals using published test methods. These methods although accurate, are elaborate and time consuming and are not practical to be performed before each EMI test. Com-Power CG or CGO series Comb Generator is a solution to this problem. The Comb Generator is a reference radiating EMI source for quick radiated EMI site verification. It can be used to identify potential measurement errors that can be cause by malfunctioning instrumentation or changes to the test setup.