Concepts and Features
R&S
®
ZNA
229
User Manual 1178.6462.02 ─ 12
●
For a 2-port R&S
ZNA, an internal combiner is not available.
●
Option R&S
ZNAxx-B213 requires hardware options R&S
ZNAxx-B21 and -B23
(see
Chapter 5.7.19, "Source Step Attenuators"
●
To retrofit the internal combiner, the R&S
ZNA must be sent to Rohde & Schwarz
service.
5.7.26
USB-to-IEC/IEEE Adapter
R&S ZVAB-B44
Hardware option R&S ZVAB-B44 (order no. 1302.5544.03) comprises an adapter and
driver software for controlling external devices via IEEE 488 / IEC 625 (GPIB). The
driver software is installed on the network analyzer. Connect the USB port of the
adapter to any of the master USB connectors on the front or rear panel of the analyzer.
Connect the GPIB port of the adapter to the external device.
This hardware option is required, if you want to use GPIB for two purposes at the same
time:
●
to control the R&S
ZNA from an external controller
(via the built-in GPIB bus connector)
●
to control external devices from the R&S
ZNA
(via the adapter)
To get the adapter to work, you have to install the NI VISA library on the R&S
ZNA.
5.7.27
External Power Meters
The connection of an external power meter to the R&S
ZNA can serve different purpo-
ses.
●
Extended measurement functionality: Each external power meter represents an
additional receive port. External power meters increase the number of RF input sig-
nals of a DUT that the analyzer can measure simultaneously. They can also pro-
vide accurate results for signals at inaccurate or unknown frequencies. A typical
example is a mixer measurement with an unknown LO signal (and therefore
unknown IF output frequency).
Optional Extensions and Accessories
