About the Extension Unit
R&S
®
ZVAX-TRM
5
User Manual 1325.1268.02 ─ 04
1 About the Extension Unit
1.1 Features
The R&S
ZVAX-TRM is a configurable extension unit for the R&S
ZVA and R&S
ZVT
families of vector network analyzers, enabling enhanced measurements with high sig-
nal power, pulsed stimuli, two-tone stimuli or a combination thereof. The focus is on
performing measurements on active devices such as T/R modules, receivers or power
amplifiers without the need to reconnect the DUT ("single connection measurement").
Once the RF connections between network analyzer and extension unit are estab-
lished, the R&S
ZVAX-TRM allows to condition the RF signals generated by the ana-
lyzer by looping internal pulse modulators, amplifiers and combiners into the related
source paths. Ports 1 and 2 on the extension unit replace the respective ports on the
network analyzer. They provide direct access to the source and measurement paths,
which can be used to loop user-specific external components (filters, attenuators, isola-
tors, amplifiers etc.) into the related paths. To optimize the measurement performance,
the a-wave (reference signal) can be monitored at different points on the source path.
Features
