Conducted interference caused by RF field induction: In general, the size of the interfered equipment is much smaller than the wavelength of lower frequency interference waves (such as frequencies below 80MHz). In contrast, the length of equipment leads (including the extension of power lines and their overhead lines, communication lines, and interface cables, etc.) may reach several wavelengths (or longer) of the interference wave. In this way, the device lead becomes a passive antenna, receiving induction from the RF field, becoming a conductive interference that invades the device's interior, ultimately affecting the device's operation with the near-field electromagnetic field formed by RF voltage and current The conducted interference caused by radio frequency field induction and the electromagnetic interference radiated by radio frequency field are exactly a pair and complement each other, forming a 150khz-1000mhz full frequency band immunity test, where 150khz-80mhz is the conducted immunity test and 80-1000mhz is the radiated immunity test

RF Conducted Immunity Test Instrument: The following is the necessary test generator to complete the conducted interference immunity test caused by RF field induction. 1) RF Conducted Immunity Test System (bandwidth 150khz-230mhz, amplitude modulation function, manual or automatic scanning, scanning point dwell time can be set, and output signal amplitude can be automatically controlled) 2) RF Power Amplifier (Depending on the test method and severity level of the test) 3) Low pass and high pass filters (to avoid interference from signal harmonics on the test object) 4) Fixed attenuators (with a fixed attenuation of 6db and an output impedance of 50w. The purpose of using a fixed attenuator is to reduce the mismatch between the attack and the coupling network, and should be installed as close as possible to the coupling network)