System tour
R&S
®
ZNA67EXT
28
Getting Started 1179.6295.02 ─ 02
●
With a single external test set, you can generate a stimulus signal and mea-
sure the reflected response signal.
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With n = 2, 3, 4 external test sets, a full n-port measurement is possible.
Maximum input level, mechanical damage
Do not exceed the damage level at the test port according to the data
sheet, especially when using active DUTs or external amplifiers.
To avoid mechanical damage when connecting devices to the 1
mm con-
nector, always use the torque wrench supplied with the R&S
ZNA67EXT.
See
6.3.2
H/L SWITCH
The H/L SWITCH connectors on the top side of each diplexer are
input connectors for the User Port signals from the R&S
ZNA67; see
Chapter 8.3, "Diplexer control"
on page 38. They allow the VNA
firmware to switch the diplexer from low to high frequency mode and
vice versa.
A suitable cable is shipped with the VNA system.
6.3.3
Connector panel
The connector panel of the diplexer provides input and output connectors for RF
signals and a DC input. Connectors labeled Low are used in low frequency mode
only; see
"Operation with external test sets"
Figure 6-8: Connector panel of R&S
ZVA-ZD110 Var 18
Diplexers