Hameg Instruments HZ530 Manual Del Usuario página 48

What are the results if I surround the entire
equipment under test in a shielded housing?
Does the E-Field-Monopole of the HZ530 have
sufficient sensitivity for pre-compliance testing?
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load a spectrum analyzer's input circuitry, particularly on signals
with a very low PRF. In practice, few signals have such a low PRF
and therefore errors occur infrequently.
This question is often asked if a CE-Mark EMC test is failed. Unfor-
tunately, this question can not be answered in general because a
metallic housing is not always a good shield. No one wants to wait
until the next full-scale EMC test for the results. What if the EUT
fails again? What is needed is a simple measurement procedure
to determine the relative improvement of the radiated RFI. For
this purpose the highly sensitive E-Field probe is used, which is
used as broad bandwidth measurement antenna to help answer
the above questions.
First, before the E-field probe is used, determination must be made
if the probe has sufficient sensitivity and bandwidth. In general, all
passive probes are not usable since they have insufficient sensitivity.
The E-Field-Monopole is sensitive enough to be used as an antenna
for radio or TV reception. With this probe the entire radiation from
a circuit or an equipment can be measured.
Änderungen vorbehalten / Subject to change without notice