Centro de descargas

This application note gives background information about the psychoacoustic measurements PESQ® (Perceptual Evaluation of Speech Quality) and PEAQ® (Perceptual Evaluation of Audio Quality). It also describes how to perform these measurements using the Rohde & Schwarz Audio Analyzer.

English - 3 Apr 2009

This application note describes how measurement results can be logged over time in the audio analyzer R&S® UPV. A Visual Basic.NET application program is included which stores results to ASCII files.

English - 29 Jun 2012

English - 28 Jun 2018

This application note is about measurement accuracy of the LCR-Meters R&S®LCX100 and R&S®LCX200. On the R&S®LCX100 and R&S®LCX200, the accuracy is calculated in real time, depending on the instrument settings and on the measured impedance. It is displayed on the lower part of the instrument display. If no test instrument is available, or information about the measurement accuracy at a certain measured impedance is sought without having a DUT at hand, this accuracy calculation tool provides the desired values.The document explains the background of the calculation and the prerequisites for installing and running the program. The installer provided installs the program on your PC.

English - 11 May 2023

This application note applies to DC power supplies R&S®NGL200, R&S®NGM200, R&S®NGP800, R&S®NGU201 and R&S®NGU401, as well as LCR meters R&S®LCX100 and R&S®LCX200. It provides an overview over ethernet-based remote services provided by the referenced R&S® instruments. These services comprise an instrument web page, VNC remote control and FTP file transfer between the instrument and a remote computer. The application note gives instructions on how to set up the instrument and the remote computer in order to be able to utilize these services.

English - 19 May 2022

This application note provides software and instructions for a simple check of the acoustic performance of mobile phones. It targets mainly service centers and repair workshops which have to perform incoming tests of defective mobile phones and final tests of repaired mobiles. A focus is set on short test times and ease of use, without compromising accuracy and repeatability of results.

English - 14 Dec 2017

This application note explains how to use the Audio Analyzer R&S UPV for measurements of maximum sound pressure level of headphones according to EN50332. It is possible to measure a combination of music player / FM receiver and headphones, the maximum output voltage of a player / FM receiver alone or the wideband characteristic voltage of headphones alone. An application program is available for download as installer file and as VB.NET project.

English - 16 Jun 2009

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 Dec 2017

The instrument setup provided in this application note allows to analyze a degraded speech signal stored into a wave file and to display its FFT spectrum and waveform.

English - 5 Sept 2014

A large variety of measurements is performed in audio engineering in order to ensure transmission quality of analog and digital devices. An audio analyzer suitable for all these tasks will, therefore, incorporate a multitude of functions, resulting in a correspondingly large number of settings.This application note is to help test engineers using the R&S®UPP and R&S®UPV audio analyzers. It presents setting examples for all basic audio measurements to be performed immediately. For each setup, information is given on the type of measurement, the underlying standards, and on how to modify the graphic display results.

English - 7 Jul 2014

This application note provides an application program for level alignment, test automation and reporting with PESQ, POLQA and delay measurements on the Audio Analyzer R&S®UPV or R&S®UPV66.

English - 8 May 2013

This application note provides an application program and instructions for performing speech quality tests and delay measurements in a live network, using the R&S®UPV audio analyzer.

English - 14 Dec 2017

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

This application program supports the logging and fast logging functionality of the power supplies R&S® NGM200, NGU201 and NGU401. Standard logging is also supported with power supply R&S® NGL200 and NGP800. Power supplies R&S® NGA100 and NGE100 are supported in the data collection mode. Charting functionality is available for logged voltage, current and power values.

English - 14 Nov 2019

Most application notes for audio analyzer R&S® UPV include an application program which runs locally using the universal sequence controller option UPV-K1. This application note explains how sequence control programs can be modified to run on a remote PC using remote control option UPV-K4.

English - 29 Jun 2012

This application note provides a program which allows to record total harmonic distortion, single harmonic distortion factors and level with one generator sweep. The executable may be installed and used without caring about programming. The source code is provided as basis for custom modifications.

English - 15 Jul 2011

Precision loss power measurement of sheet iron and ferrite cores with high signal frequency: exact, easy and in real-time! With the ZES ZIMMER – A Rohde & Schwarz Company – precision power analyzer LMG611 and other LMG models it is possible to obtain the magnetic characteristics of transformer-cores and coil materials besides a precise measurement of power loss.Those could be the peak values of the magnetic flux, the magnetic field strength and the permeability of a core which are determined at low and at high frequencies. For the quality control of magnetic materials completely wound cores can be used.Many measuring proceedings require sinusoidal field strength or flux which require expensive and complicated signal sources. Since the main point of interest is especially the saturation interval, there will be a high demand for the source in this range. It is more elegant and cheaper to use "intelligent" measuring equipment and allow arbitrary curve forms of the voltage and the current and to apply some mathematics. In doing so low-cost power sources can be used. Even the line voltage with its high harmonic distortion can be used.

English - 25 Sept 2026

The efficiency of power transformers is a key factor in reducing energy losses within the power distribution network, not to mention the increasing regulatory pressure from energy-consuming facilities such as data centers. Inefficiencies in power transmission result in financial losses and elevated greenhouse gas emissions, both of which must be avoided. As part of type and acceptance testing, power transformers are both specified with respect to their essential electrical parameters and subsequently tested and certified for compliance with these and other regulatory requirements. High efficiency and full conformity are the ultimate objectives. To achieve this, all relevant electrical performance parameters must be measured and analyzed with the highest precision. In addition, manufacturers are increasingly required to perform special tests tailored to advanced and application-specific requirements.

English - 25 Sept 2026

In today’s energy-conscious world, optimizing power efficiency in data centers has become a key focus for IT infrastructure. As the demand for data processing grows, data centers are consuming more energy, making energy efficiency in server operations a critical factor in evaluating server performance in the modern tech landscape. As a result, the need to effectively measure and benchmark power consumption to optimize server energy efficiency is more pressing than ever.

English - 25 Sept 2026