HZ550L HZ540L EMI has a near field probe (3G) HZ540L

The Hz540 and HZ550 are active near field probe kits, designed to provide diagnostic help when resolving radiation issues. These kits are composed of three or five different handheld probes, respectively. They have different sensitivity and reception characteristics that can be used in combination with various spectrum analyzers, EMI receivers or oscilloscopes. These probes help quickly identify the signal source. It can be used to diagnose radiation from board, integrated circuit, PC board edge, ground layer current, strip cable, angular seam, and similar interference sources. The kit includes a magnetic field probe and a probe for measuring the electric field signal. These probes cover the frequency range of 30 MHz to 3 GHz and provide near-field related readings. The probe can be powered directly from the HAMEG spectrum analyzer or powered by any 6VDC power. The H field probe provides a signal proportional to the magnetic field strength so that the position of the interference source can be determined relatively high. The E field probe is the highest in these probes, which can be used to assess the overall shielding effect on the measured circuit. High impedance probes can be used to measure signals on contacts without degradation of signal performance due to probe capacity.

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