Rohde & Schwarz R&S ZNA Series - 4.7.31 Receiver step attenuators; 4.7.32 Internal pulse modulators; 4.7.33 Trigger board

Concepts and features
R&S
®
ZNA
309User Manual 1178.6462.02 ─ 29
On a R&S ZNA67EXT, this hardware option is preinstalled.
4.7.31 Receiver step attenuators
Options R&S ZNAxx-B3y
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.
Hardware option R&S ZNAxx-B3y provides a receiver step attenuator for physical port
y of a R&S ZNAxx. The attenuation values can be set between 0 dB and 35 dB (in 5
dB steps); see "Receiver Step Att." on page 527.
On a R&S ZNA67EXT, hardware options R&S ZNA67-B3y are preinstalled.
4.7.32 Internal pulse modulators
Option R&S ZNAxx-B4y
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.
4.7.33 Trigger board
Option R&S ZNA-B91
Hardware option R&S ZNA-B91 adds the following BNC connectors to the Chap-
ter 3.2.2, "Rear panel", on page 41 of the R&S 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