Concepts and features
R&S
®
ZNA
302User Manual 1178.6462.02 ─ 29
Reference information for both protocols is available on the R&S ZNA at the address
http://<instrument>/api/hums/v1/documents?name=<interface>.
For <instrument>, enter the hostname or the IP address of your instrument, as for
access to the GUI.
For <interface> = snmp, you get a .zip file containing the MIB files for SNMP. For
<interface> = rest, you get a web page with the OpenAPI specification of the REST
API.
For further information about the HUMS service itself, see the R&S HUMS user man-
ual.
4.7.20 Internal 3rd and 4th source for 4-port R&S ZNA
R&S ZNAxx-B3
A four-port R&S ZNA has at least two internal sources. With two internal sources
(default), the physical ports of a four-port VNA are split into groups P1 = {1,2} and P2 =
{3,4} such that source 1 can only drive ports in P1 and source 2 can only drive ports in
P2. Independent signals require the source ports to reside in different port groups. For
example, you cannot use VNA ports 1 and 2 as independent source ports.
Hardware option R&S ZNAxx-B3 expands a four-port network analyzer R&S ZNAxx
with a third and fourth internal source. With four independent internal sources, a wide
range of Frequency conversion measurements can be performed, without the need for
additional (external) generators.
Optional extensions and accessories
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