System Overview
R&S
®
ZVA
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Getting Started 1145.1090.62 ─ 13
Compared to conventional measurement methods, the mixer delay measurement
offers several additional advantages.
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No external mixers are needed.
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A network analyzer with standard functionality is sufficient.
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Easy calibration using a calibration mixer.
3.5.9 Long Distance Mixer Delay (R&S ZVA-K10)
The mixer delay measurement can be performed with two different R&S ZVA or R&S
ZVT network analyzers, one providing the source ports, the other the receive port. The
two instruments can communicate with each other via LAN using LXI event messages.
This can be advantageous e.g. for measurements on DUTs with large dimensions
where the connection to a single instrument would require very long RF cables.
3.5.10 Internal Pulse Generators (R&S ZVA-K27)
Provides two independent control signals at the CASCADE output connector on the
rear panel of the network analyzer. The signals can be used to control an R&S ZVAXxx
Extension Unit equipped with a pulse modulator option.
3.5.11 Noise Figure Measurement (R&S ZVAB-K30)
Provides the noise figure of a DUT which operates in its linear range. The noise figure
of a device is the ratio of the output signal-to-noise ratio (SNR) to the input SNR, provi-
ded that a thermal noise signal is fed to the input. It is a measure of the degradation of
the SNR caused by the device.
The method of measurement offers several advantages:
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No additional noise source is required.
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The result can be obtained in a single sweep.
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The test setup is as simple as for a basic transmission measurement: The DUT
must be connected only once. Moreover, it is possible to perform S-parameter
measurements in parallel to the noise figure measurement.
3.5.12 Frequency Converting Noise Figure Measurement (R&S ZVA-K31)
Provides the noise figure of a frequency-converting DUT, e.g. a mixer or a system of
two mixer stages. The measurement is performed in analogy to noise figure measure-
ments on non-frequency-converting DUTs.
Mixer noise figure measurements also require options R&S ZVAB-K30 and R&S ZVA-
K4.
Optional R&S
ZVA Extensions
