WCA January 2012

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Technologynews
From the FFT data, the Structural
Return Loss (SRL) is determined and
gives information about the expected
attenuation of the RF signal during
data transmission.
The long measuring zone measures
with high precision the average value
of the capacitance.
The avoidance of periodical changes
of the cable is a precondition for an
optimum attenuation characteristic,
whereas the critical interval of the
periods is the shorter the higher the
targeted data transmission rate for the
cable increases.
These periodical changes are
determined by the multizone
technology of the Capacitance 2000,
as all parameters that influence quality
(eg conductor diameter, foaming, outer
diameter) are reflected in the
capacitance.
The accuracy is 0.1 pF per metre. At
line speeds of up to 2,400m/min
predictions of the Structural Return
Loss of 3GHz, respectively 8GHz up to
1,300m/min are possible. In this way,
the defined impedance of the cable
can be reproduced accurately.
The detection of periodical capacitance
variations and the prediction of the
Structural Return Loss (FFT and SRL)
are available as special features directly
at the measuring tube via a diagnosis
interface.
For displaying the measuring values
Sikora offers the processor systems
Remote 2000 as well as the
Ecocontrol 600/1000/2000. The
presentation of FFT and SRL is
possible via the Ecocontrol 1000 or
2000.
Sikora AG – Germany
Fax: +49 421 489 0090
Email:
Website:
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