R&S
®
ZVL
System Overview
Optional R&S ZVL Extensions
Quick Start Guide 1303.6538.62-01
100
3.4.1 Distance-to-Fault (R&S ZVL-K2)
The network analyzer measures and displays complex S-parameters and other
quantities as a function of the frequency. The measurement results can be filtered and
mathematically transformed in order to obtain the impulse response, which often gives
a clearer insight into the characteristics of the DUT.
The impulse response is special type of a time-domain representation. A fault
(discontinuity) on a transmission line causing reflection results in a spike on the
impulse response trace of the reflection coefficient. With option R&S ZVL-K2, the
analyzer can display the impulse response trace and calculate the distance between
the reference plane and the fault from the propagation time, taking into account the
electrical properties of the transmission line (Cable Type). Moreover it is possible to
define which of the peaks will be considered as being due to a fault, and to draw up
and export a list of the detected peaks.
3.4.2 Time Domain (R&S ZVL-K3)
The network analyzer measures and displays complex S-parameters and other
quantities as a function of the frequency. The measurement results can be filtered and
mathematically transformed in order to obtain the time domain representation, which
often gives a clearer insight into the characteristics of the DUT.
Time domain transforms can be calculated in band pass or low pass mode. For the
latter the analyzer offers the impulse and step response as two alternative
transformation types. A wide selection of windows can be used to optimize the time
domain response and suppress sidelobes due to the finite sweep range. Moreover, it is
possible to eliminate unwanted responses by means of a time gate and transform the
gated result back into the frequency domain.
3.4.3 Spectrum Analysis (R&S ZVL-K1)
The spectrum analysis option provides the basic functionality for measuring an
arbitrary RF signal in the frequency domain. Evaluation tools such as markers and limit
lines allow a refined analysis of the measurement results. A wide range of predefined
power measurements cover typical RF measurement tasks, in particular:
E
Zero span power measurements
E
Channel and adjacent channel power measurement
E
Measurement of occupied bandwidth
E
CCDF measurement (amplitude statistics of signals)
Option R&S ZVL-K1 is a prerequisite for all supplementary spectrum analyzer (SAN)
options; see table and figure above.
For operation see the R&S ZVL-K1 Software Manual.
