Connecting the external test sets
R&S
®
ZNA67EXT
38
Getting Started 1179.6295.02 ─ 02
Connection
Cable type
# in
Var
02
# in Var
04
R&S
ZNA67 Conv LO Out to LO
power divider
R&S
ZV-Z195 26.5
GHz
2.92
mm
(m) / 2.92
mm
(m),
91
cm
x 1
LO power divider (+ Adapters
R&S
ZV-Z1218) to converter
p
LO IN
R&S
ZV-Z193, 26.5
GHz
3.5
mm
(m) / 3.5
mm
(m),
152
cm
x 2
p
= 1, 2
x 4
p
= 1, ..., 4
Tightening RF cables
Tightening RF cables too strongly, can damage cables and connectors. Loose
tightening can result in inaccurate measurement results.
Therefore always use an appropriate torque wrench, suitable for the type of con-
nector. Rohde & Schwarz offers an optional 5/16” torque wrench that fits for SMA,
3.5 mm, 2.92 mm and 1.85 mm connectors (R&S
ZN-ZTW variant 35). Similar
wrenches are available for other sizes of spanner, too. For ordering information,
see the R&S
ZN-ZTW data sheet or product brochure.
8.3
Diplexer control
Switchover between low frequency and high frequency mode is automatically
controlled from the R&S
ZNA67EXT network analyzer unit. Use the "H/L Switch"
cable to connect the User Port connector on the rear panel of the analyzer to the
H/L SWITCH connectors on the top side of the diplexers.
Figure 8-4: H/L SWITCH cable for 4 test sets
Diplexer control