Required Equipment
Software Utility
9
Getting Started 1331.3069.02 ─ 03
converters, if an external signal generator is used. On four-port instruments
R&S
ZVA67, an external signal generator is necessary to realize setups with 4 con-
verter ports.
The R&S
ZVT20 can be operated with up to four frequency converters (depending on
the number of installed ports). With an additional external signal generator, up to 6 fre-
quency converters are supported for frequency leveling.
The R&S
ZVA110 enables millimeter-wave measurements from 10 MHz to 110 GHz in
a continuous sweep. Converter ports of other R&S
ZVA or R&S
ZVT-based test sys-
tems only cover the frequency range of the converter, e.g. 75 GHz to 110 GHz for
R&S
ZVA-Z110(E).
Required Options
●
Option R&S
ZVA<n>-B16, "Direct Generator/Receiver Access" at each analyzer
port
●
Option R&S
ZVA-K8, "Converter Control"
●
Option R&S
ZVA-B8 (to establish the power control connection between the ana-
lyzer and the frequency converters with electronic attenuators)
Supported firmware versions
The present version of the Leveling Tool requires a or R&S
ZVT firmware version
V3.60 or higher. For the R&S
ZVA110 a firmware version 4.11 or higher is required.
Free firmware updates are available for download on the R&S
ZVA and R&S
ZVT
http://www.rohde-schwarz.com/product/zva
). Refer to the instrument's help system or operating manual
for installation instructions.
3.3
Frequency Converters
A test system comprises one or more frequency converters R&S
ZCxxx or R&S
ZVA-
Zxxx(E) plus all the necessary cabling to connect the frequency converters to the ana-
lyzer.
Best leveling results are obtained for frequency converters R&S
ZCxxx, R&S
ZVA-Z110
Var.03, and R&S
ZVA-Z90. For R&S
ZVA and R&S
ZVT with option R&S
ZVA-B8, also
frequency converters with electronic attenuators (R&S
ZVA-Z110E and R&S
ZVA-
Z90E) provide precise leveling results.
Other frequency converters have limited ability to control the RF output power via the
RF input power and therefore generally do not allow for effective power correction over
wide frequency and power ranges. However the Leveling Tool also performs the cali-
bration steps with these frequency converters.
Frequency Converters