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Concepts and Features
R&S
®
ZNA
226
User Manual 1178.6462.02 ─ 12
5.7.21
Receiver Step Attenuators
Options R&S
ZNAff-B3x
Receiver step attenuators are used to adjust the received signal levels to the input
level range of the analyzer to avoid damage to the instrument, e.g. if the DUT is a
power amplifier.
The attenuation values can be set between 0 dB and 35 dB (in 5 dB steps); see
on page 405. The following step attenuators are available:
Table 5-21: R&S
ZNA
Analyzer type
Port 1
Port 2
Port 3
Port 4
R&S
ZNA26
R&S
ZNA26-B31
R&S
ZNA26-B32
R&S
ZNA26-B33
R&S
ZNA26-B33
R&S
ZNA43
R&S
ZNA43-B31
R&S
ZNA43-B32
R&S
ZNA43-B33
R&S
ZNA43-B33
5.7.22
Internal Pulse Modulators
Option R&S
ZNAxx-B41|B42|B43|B44
Software-enabled hardware option R&S
ZNAxx-B4y provides an internal pulse modula-
tor for physical port y of a R&S
ZNAxx.
Switch times are limited to 1
μs or higher.
5.7.23
Trigger Board
Option R&S
ZNA-B91
Hardware option R&S
ZNA-B91 adds the following BNC connectors to the
ZNA:
●
3 trigger in, 4 trigger out
●
4 external pulse modulator control signals (I/O switchable)
●
busy and ready for trigger indication
●
+28 V noise source control
●
RF OFF control input
All logic levels are LV-TTL 3.3
V, 5
V tolerant.
Optional Extensions and Accessories