The RF-U 5-2 is a small and handy, passive near-field probe. For best coupling, the probe head should be positioned directly onto the component. Field lines from other sources entering the probe laterally or in a straight line are also detected. It has a current attenuating steath and its upper side is electrically shielded. It can be connected to a spectrum analyzer or an oscilloscope with a 50 Ω input. The H-field probe does not have an internal terminating resistance of 50 Ω.