HZ530 / HZ540 / HZ550: Electromagnetic fields (ID #634)
The H-field probe sends a voltage that is proportional to the magnetic field strength to the spectrum analyzer. This makes it possible to localize sources of interference with relatively high precision.
The high-impedance probe is a high-ohm unit used to determine radio frequency interference levels on individual contacts or printed circuit board conductors.
The E-field probe is the most sensitive of the three probes. It can be used to assess the total effect of shielding and filtering in a tested unit.