Concepts and features
R&S
®
ZNA
274
User Manual 1178.6462.02 ─ 20
4.7.22
Internal 2nd source and 2nd LO generator for 2-port R&S
ZNA
Option R&S
ZNAxx-B52
Without additional HW options, a two-port R&S
ZNA is equipped with a single internal
source. This source can drive a single port at a time. Hardware option R&S
ZNAxx-B52
provides a second internal RF source
and
a second internal LO.
The frequency range of the second internal RF source corresponds to the frequency
range of the related R&S
ZNA. The frequency range of the LO generators (1st and
2nd) is 10
MHz to 26.5
GHz.
●
This option is only available for R&S
ZNA26 and R&S
ZNA50.
●
If the R&S
ZNA is equipped with a second internal LO and an
, then the
second internal LO is connected to the LO Out.
●
For 4-port R&S
ZNA, option R&S
ZNAxx-B5 offers a second internal LO.
Chapter 4.7.21, "Second internal LO generator for 4-port R&S
With two independent internal RF sources, the R&S
ZNA can generate two-tone stimuli
without the need for an additional generator. Using
Direct generator/receiver access
,
the upper-tone port can serve as receiving port in intermodulation and two-tone group
delay measurements. And, with two independent internal RF sources the R&S
ZNA
can generate
or
The additional second LO source enables measurements with two frequency convert-
ers, and many additional
Frequency conversion measurements
additional (external) generators. The LO Out (option R&S
ZNA-B8) can also serve as
additional source.
4.7.23
Memory extension for data streaming
R&S
ZNA-B7
Hardware option R&S
ZNA-B7 comprises an additional memory board, that is exclu-
sively used for buffering data of the measurement and reference receivers. Compared
to the standard memory, the buffering speed is twice as high.
This high-speed memory is particularly useful for
, because a
high time resolution requires a high IF bandwidth and hence a large amount of data to
be buffered. The "Pulse Profile" sweep type uses the R&S
ZNA-B7, if available.
The doubled memory speed also doubles the number of wave quantities that can be
measured simultaneously at a given bandwidth. The following table presents optimum
values.
Optional extensions and accessories