Overview of R&S
ZVAX24 Options
R&S
®
ZVAX24
29
Quick Start Guide 1312.7985.62 ─ 03
4 Overview of R&S
ZVAX24 Options
The following table lists the options to be installed in the extension unit and possible
applications.
Option
Type
Application
Low Noise Preampli-
fier
R&S ZVAX-B203
Amplifies the input signal at port 2 of the network analyzer.
This reduces the noise figure of the NWA receiver and thus improves the accuracy
of a noise figure measurement with option R&S ZVAB-K30.
Port 2 Receiver Moni-
tor Output
R&S ZVAX-B210
The measured test signal at port 2 is fed to the MONITOR connector on the
R&S
ZVAX24 front panel.
An external device (e.g. a spectrum analyzer) can be connected to monitor the signal.
Combiner
R&S ZVAX-B211
Combines the source signals from ports 1 and 3.
With different port frequencies, the combiner provides a two-tone signal, e.g. for
intermodulation or mixer delay measurements.
Harmonic Filter
Source Port 1
R&S ZVAX-B251
Provides an RF source signal with excellent harmonic suppression at port 1.
To be used for accurate harmonics measurements.
Harmonic Filter
Receiver Port 2
R&S ZVAX-B252
Suppresses the fundamental wave in the received signal at port 2 and therefore pre-
vents the generation of additional harmonics in the NWA receiver.
To be used for accurate harmonics measurements.
Harmonic Filter
Source Port 3
R&S ZVAX-B253
Provides an RF source signal with excellent harmonic suppression at port 3.
Harmonic filters for two independent source signals can be used for differential
measurements and mixer measurements which require RF and LO signals with a
high spectral purity.
Pulse Modulator
Source Port 1
R&S ZVAX-B271
Provides pulsed signals at port 1.
To be used for pulsed measurements on unidirectional DUTs (e.g. power amplifiers),
where the reverse stimulus signal can be continuous.
Pulse Modulator
Receiver Port 2
R&S ZVAX-B272
Modifies the pulsed received wave at port 2.
Used to protect the NWA receiver from excess input levels (e.g. in T/R module
measurements) and for the chopped pulse profile measurement mode.
Pulse Modulator
Source Port 3
R&S ZVAX-B273
Provides pulsed signals at port 3.
Pulsed signals at two source ports are used for pulsed measurements on DUTs which
require pulsed stimulus signals in forward and reverse direction (e.g. bidirectional
DUTs like T/R modules for phased-array pulse radar).
High Power Coupler
Port 1
R&S ZVAX-B291
Extends the source power range at port 1 to values up to +43 dBm.
Used for measurements on DUTs that require high stimulus powers.
High Power Coupler
Port 2
R&S ZVAX-B292
Extends the receiver power range at port 2 to values up to +43 dBm.
Used for measurements on DUTs that provide high output powers.
