a spectrum analyzer or a measuring receiver, the probes
can be used to locate and qualify EMI sources, as well
as evaluate EMC problems at the breadboard and proto-
type level. The power can be supplied either from batteries
(HZ530) or through a power cord directly connected to an
spectrum analyzer (HZ540). Signal feed is via a BNC-cable
or SMA/N-cable. They enable the user to evaluate radia-
ted fi elds and perform shield effectiveness comparisons.
The HZ530 or HZ540 probes – one magnetic field probe,
one electric field probe and one high impedance probe –
are all matched to the 50 Ω inputs of spectrum analyzers.
The technical specifications are described in the HZ530/
HZ540 manual on our homepage http://www.hameg.com/
downloads.
HAMEG probes are only used for so-called relative measure-
ments. Neither the frequency response nor a correction factor or
something similar is required for the measurement
13.5 Transient Limiter HZ560
Fig. 13.3: Transient Limiter HZ560
The transient limiter HZ560 protects the input circuit of
spectrum analyzers and measurement receivers, in par-
ticular in combination with the use of a Line Impedance
Stabilization Network (i.e. HAMEG LISN HM6050-2). The
technical specifications are decribed in the HZ560 manual
on www.hameg.com.
13.6 75/50-Ω-Converter HZ575
Fig. 13.4: 75/50-Ω-Converter HZ575
The converter HZ575 has a 75 Ω AC coupled input and a
50Ω DC coupled output. Using HZ575, spectrum analyzers
with 50 Ω input can be used for measurement in 75 Ω en-
vironment. HZ575 can be used reversed too. A 50 Ω signal
applied at the 50 Ω "output" is present at the 75 Ω BNC "in-
put" socket with an impedance of 75 Ω. The technical spe-
cifications are decribed in the HZ575 manual on www.ha-
meg.com.
Optional Hameg accessories
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