Concepts and Features
R&S
®
ZNB/ZNBT
227User Manual 1173.9163.02 ─ 53
5.7.6 Frequency Resolution 1 mHz
Option R&S ZNB/ZNBT-K19
This software option improves the frequency resolution of a R&S ZNB/ZNBT to 1 mHz.
5.7.7 Bias Tees (R&S ZNB only)
Option R&S ZNB-B1 for R&S ZNB4|8
The hardware option R&S ZNB-B1 provides additional BNC inputs (labeled BIAS 1,
2,...), which can be used to apply an external DC voltage (bias) to the analyzer ports:
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Bias Tees for Two-Port R&S ZNB4|8, Order No. 1316.1700.02
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Bias Tees for Four-Port R&S ZNB4|8, Order No. 1316.1700.04
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R&S ZNB20|40 are always equipped with bias tees.
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Bias Tees are not available for the R&S ZNBT.
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The optional bias tees have an impact on the start frequency of R&S ZNB4 and
R&S ZNB8 network analyzers; for details refer to the data sheet and to
[SENSe:]FREQuency... commands.
5.7.8 Internal Second Source
Options R&S ZNB-B2, R&S ZNB20-B2, R&S ZNB40-B2 (and R&S ZNBTx-B112)
The hardware options
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R&S ZNB-B2 "Internal Second Source for R&S ZNB4, R&S ZNB8 (4-Port)" and
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R&S ZNB20-B2, "Second Internal Generator for R&S ZNB20 (4-Port)"
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R&S ZNB40-B2, "Second Internal Generator for R&S ZNB40 (4-Port)"
expand four-port network analyzers R&S ZNB with a second internal generator, which
can be used as an additional stimulus signal, e.g for mixer measurements; see Chap-
ter 5.7.4, "Frequency Conversion Measurements", on page 217.
For the R&S ZNBT, an internal second source is automatically added with option
R&S ZNBTx-B112 (x=8,20), i.e. if the analyzer is equipped with 12 ports or more; see
Chapter 5.7.1, "Additional Test Ports (R&S ZNBT only)", on page 203.
Optional Extensions and Accessories
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