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This paper reviews the classical spectrum analyzer measurement of L(f) and its shortcomings and discusses how modern phase noise test sets measure phase noise and avoid the limitations imposed by direct spectrum measurements.

English - 31 mar 2020

The ARB Toolbox is an easy-to-use, feature packed software package that is used for many ARB waveform related tasks. Use this software for creating ARB waveform files from custom IQ data; import data from MATLAB .mat files; evaluate waveform content graphically; resample or filter waveforms; create analog modulated signals as ARB files; edit marker data in waveform files; use the composer for the creation of complex multi carrier scanarios.

English - 13 dic 2018

English - 28 jun 2018

Provides the information required to prepare the instrument for use and start working.

English - 10 feb 2026

Provides the basic information required for remote control connections via SCPI.

English - 16 jul 2025

RSCommander is a versatile software tool for a wide range of Rohde & Schwarz spectrum-, network analyzers, signal generators and oscilloscopes. It allows for automatic instrument discovery, making screenshots, reading traces, file transfer and simple script creation.

English - 24 dic 2017

R&S®VISA is a standardized software library that allows fast communications over diverse interfaces with a wide variety of T&M instruments that are detected on the network from PC applications. R&S®VISA also includes a trace tool that simultaneously monitors communications between multiple applications and T&M instruments, and permits targeted analysis with the aid of efficient filters.

English - 26 may 2020

Describes the specific functions of the application, including the remote control commands with programming examples.

English - 10 feb 2026

Describes the specific functions of the application, including the remote control commands with programming examples.

English - 10 feb 2026

Describes the specific functions of the application, including the remote control commands with programming examples.

English - 10 feb 2026

Describes all instrument functions and remote control commands, including measurement and programming examples, for the base unit.

English - 10 feb 2026

Describes the concept and specific functions of the multi-standard radio analyzer operating mode, including the remote control commands with programming examples.

English - 10 feb 2026

This application note provides basic information about frequency and phase settling time measurements and how the measurement is implemented inside modern phase noise analyzers.Measurement examples show the possibilities of this measurement feature and help the user to understand and use this method.

English - 28 jun 2018

Increasing data rates in high-speed digital designs and wireless communications require SerDes PLLs and clock synthesizers with low additive phase noise and high jitter attenuation. Modern designs often follow a two-stage architecture, consisting of a jitter-attenuator and a frequency-synthesizer stage. Due to their high phase noise sensitivity, phase noise analyzers are the instruments of choice for these tests. To stimulate the PLL, an additional signal source with ultra low phase noise is required.

English - 1 ago 2018

This paper describes the measurement of additive/residual phase noise of power amplifiers or multipliers for example for automotive RADAR sensors at 80 GHz using the interferometric measurement approach in combination with a phase noise and VCO tester R&S FSWP. The setup provides a way to characterize the additive/residual phase noise of amplifiers down to -150 dBc/Hz at 100 kHz offset even in the microwave range at 80 GHz.

English - 11 sept 2024

Timing components such as low jitter oscillators and clocks are necessary to facilitate increasing data rates in high speed digital designs. As part of the overall system design, the components also have to perform in the system’s non-ideal power integrity environment and limit the power supply induced phase noise and jitter from power rail disturbances. Measuring the power supply noise rejection (PSNR) requires accurate generation and leveling of artificial, sinusoidal disturbances and measurement of resulting phase-noise and jitter impairments.

English - 30 sept 2020

For automated test applications, measurement time is often as important as the quality of the measurement. As with many situations, time is money. In practice, phase noise measurements are generally not considered fast, but test engineers still desire to save as much test time as possible. The Rohde & Schwarz®FSWP (FSWP) is a modern, digital signal processing based, phase-noise test set that performs many tasks in parallel in an effort to improve measurements speed. However, several measurement settings drastically affect measurement speed. This paper will discuss these settings and provide suggestions on improving overall measurement speed.The three key instrument parameters that affect FSWP measurement speed are:1. Number of cross correlations2. Resolution bandwidth (RBW)3. Offset frequency span

English - 8 oct 2020

Spanish - 24 feb 2026

The R&S®FSWP phase noise analyzer and VCO tester is a high-end instrument that accurately analyzes noise in key radar and communications system components. Phase noise measurements are used to derive the large-signal noise figure for a device under real-world operating conditions.

English - 16 may 2025

Describes the specific functions of the application, including the remote control commands with programming examples.

English - 10 feb 2026

Describes the specific functions of the application, including the remote control commands with programming examples.

English - 10 feb 2026

Describes the specific functions of the application, including the remote control commands with programming examples.

English - 10 feb 2026

With advances in digital signal processing techniques modern wireless communications systems and radar systems have become increasingly digital and more constraints have been placed on packing more information into less and less bandwidth. On the wireless side, modulation formats have become more complicated with less margin for symbol error. On the radar side, modern radar systems are trying to extract more information about the targets they track and provide the ability to track slow moving targets such as automobiles and personnel in the presence of clutter.For both communications and radar systems one of the key RF parameters that limits system performance is phase noise. As systems engineers develop new and more advanced RF systems, phase noise of oscillators and transmitters can no longer be overlooked.This application note will focus on phase noise measurements for pulsed RF carriers such as those used for radar systems. We will address some of the physical limitations relating to pulsed phase noise measurement and introduce the capabilities of the new Rohde & Schwarz FSWP phase noise analyzer.

English - 18 may 2016

With recent enhancements in semiconductor technology the microwave frequency range beyond 50 GHz becomes more and more attractive especially for wideband communication applications like 802.11ad, microwave links or automotive RADAR. Low phase noise is essential for these applications to work properly. Accurate measurement of phase noise is needed to improve the performance. However, test setups at these frequencies become difficult, especially when cross correlation of two receive paths is needed to suppress additional phase noise added by the local oscillators or mixer stages. Two external harmonic mixers in combination with a commercially available phase noise tester are used for phase noise analysis. Signal sources with frequencies up to 325 GHz can theoretically be measured with this setup.

English - 5 feb 2018

English - 16 feb 2026