| The ETSi4334 is an EMC Board Analysis system capable of
mapping and analysing emissions from printed circuit board assemblies and
cables. The ETSi4334 is probably the first board level system to be developed
by EMC engineers out of the need to have an efficient tool for tracing faults
in non-compliant equipment. Emissions can be traced to component or even
track level. Board susceptibility can be as assessed by analysing injected RF
currents. Analysing EMC problems with the
ETSi4334 is a two stage process; Identifying the problem frequencies and then
locating the source of emissions at those frequencies.
The problem frequencies may already be known
from the results of OATS testing. If not then the Frequency Scan feature of
the ETSi4334 provides a number of options to help pin down the frequencies with
the greatest levels of emissions. In addition to the main probe, the frequency
source can be the board loop probe, one of several cable clamp probes or a hand
probe.
Once the frequency of interest has been
established an XY-Plot of the board can be
carried out.
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