R&S 1323.7600.02, Getting Started

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RF connections
R&S
®
ZCxxx
23 Getting Started 1177.5156.02 ─ 05
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Once the R&S ZNA firmware has registered a converter, the USB con-
nection is no longer required.
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Repeat step 4 whenever you are not sure whether a suitable converter
configuration is already active. Switching the VNA off and on preserves
the converter configuration.
Converter configurations can be saved and loaded via the graphical
user interface of software option R&S
ZNA-K8 (System – [Setup] key >
"Frequency Converter" tab > "Save Converter Topology"/"Load Con-
verter Topology").
5.2 Input connectors (RF IN, LO IN)
For the R&S ZNA standard setup, proceed as follows:
1. Connect test ports of the R&S ZNA to the RF IN ports of the converters.
2. Use a power splitter to connect the R&S ZNA-B8 Converter LO Out port of the
R&S ZNA to the LO IN ports of the converters.
High-quality cablings using R&S ZV-Z195 and R&S ZV-Z193 test cables are
shown in Figure 5-1 and Figure 5-2 . The adapters and splitters that are required
for this cabling, are offered as complementary adaption kits (see Chapter 5.4,
"Adaption kits R&S ZCAKN" , on page 24).
The required cable lengths depend on the desired converter arrangement. Always
use cables with low attenuation and excellent phase stability.
Input connectors (RF IN, LO IN)