Rigol NFP-3 - RF Near Field Probe Kit Frequency Range: 30MHz to 3GHz One set includes four types of probe, provides optimizing sensitivity and resolution Minimum resolution: 2mm; able to capture near field radiation of single circuit line Applicable for electromagnetic leakage testing inside the cableThe Rigol NFP-3 is used with RIGOL DSA series spectrum analyzer for the EMI tests of electronic products. It can be used to test the magnetic field strength and magnetic field coupling channels on the surface of the electronic components as well as the magnetic field environment near the electronic module so as to quickly locate the interference source. NFP-3 includes four models (NFP-3-P1, NFP-3-P2, NFP-3-P3 and NFP-3-P4).Connect the spectrum analyzerConnect the SMB (M) terminal of NFP-3 and the BNC (F) terminal of the N-BNC adaptor respectively via the BNC-SMB RF cable; connect the N (M) terminal of the N-BNC adaptor to the RF input terminal of the spectrum analyzer.Connect the device under testNFP-3 is used to perform short-distance noncontact measurement on the device under test. Pay attention to the direction of the probe during measuring.Typical ApplicationLocate the EMI radiation interference source.Determine the frequency and relative strength of the spectral component of the interference source.