R&S ZVA-Z75 Manual De Instrucciones página 43

®
R&S ZVA-Z75, -Z90, -Z110, -Z140, -Z170, -Z220, -Z325, -Z500
rear. Usually, a suitable start setup for instrument alignment is as follows: Screw the
front feet into the instrument as far as possible and use the rear foot to align the instru-
ment parallel to the surface of the bench top. When you mount a DUT to two instru-
ments (see
alignment.
Figure 2-5: Setup with three feet (left) and four feet (right)
2.4.4 Selecting and Mounting a Test Port Adapter
Depending on the instrument model, one or two test port adapters are available (see
Chapter 2.1, "Test Port Adapter (Waveguide
ate adapter depending on the DUTs to be measured:
●
Standard adapter (R&S ZVA-Z110, R&S ZVA-Z140, R&S ZVA-Z170, R&S ZVA-
Z220, R&S ZVA-Z325, R&S ZVA-Z500):
Use this adapter if you want to measure DUTs with thin pins only.
●
HP/Agilent compatible adapter (R&S ZVA-Z75, R&S ZVA-Z90 and R&S ZVA-Z110):
Use this adapter if you want to measure DUTs with thick pins.
DUTs with thin pins can also be connected to the HP/A adapter (useful if you have both
types of DUT). But the connection of DUTs with small pins is more accurate if the stan-
dard adapter is used. The reduced alignment condition can typically be compensated
using two additional pins above and below the waveguide cross-section.
Mount the selected adapter to the waveguide flange of the instrument using the deliv-
ered screws and the included hex ball driver. A tight and accurate connection is essen-
tial for precise calibration and measurement results.
2.4.5 Connecting RF Cables
The connectors RF IN, LO IN, MEAS OUT and REF OUT have to be connected to the
NWA; LO IN can alternatively be connected to an external generator.
Getting Started 1307.7039.62 ─ 11
Chapter 2.4.8, "Mounting a
Putting the Converter into Operation
DUT", on page 16), use the feet for further
Flange)", on page 6). Select the appropri-
Preparing for Use
12