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Operating Manual 1145.1084.12 – 30 416
Extension Unit R&S ZVAX-TRM (for R&S ZVA and R&S ZVT)
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 signal 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 output amplifiers without the need to reconnect the DUT ("single connection
measurement"). The extension unit is fully controlled by the analyzer firmware (V3.30 or higher); the
management connection is established via USB.
This documentation gives a rough overview of the extension unit and describes the operation from the
analyzer firmware. For a general introduction to the extension unit including setup instructions and an
overview of the available models and options refer to the "R&S ZVAX-TRM User Manual", stock no.
1325.1268.02, also available for download in the product section of the R&S web site.
The figure below illustrates the RF connections between the NWA and the extension unit: Connect the
SOURCE/REF/MEAS OUT connectors in the upper part of extension unit's front panel to the
corresponding IN direct access connectors of the NWA, and vice versa.
To establish the management link, connect the USB FROM NWA port, located at the back panel of the
R&S ZVAX-TRM, to one of the USB ports (on the rear panel) of the analyzer. The required "USB type A to
USB type B" cable is delivered with the extension unit.
To perform pulsed measurements with the pulse generator of the R&S ZVA/ZVT controlling the pulse
modulator(s) of the extension unit, connect the CASCADE OUT of the analyzer to the CASCADE IN
located on the back panel of the R&S ZVAX-TRM; the required RJ45 cable is delivered with the extension
unit.
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