Pesquisa de Artigos e Documentos

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 de dez. de 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 de mai. de 2020

English - 20 de ago. de 2019

Describe how to configure a signal generator from Rohde & Schwarz to generate test signals for basic tests on Dual Cell HSDPA (DC-HSDPA) operation.

English - 28 de ago. de 2010

This Application Note describes measurements on RFID readers and chipcards according to ISO/IEC 14443 and similar standards, using a signal generator and a spectrum analyzer. Using a modern spectrum analyzer like the R&S®FSL not only increases accuracy and measurement speed, but also simplifies operation. Interoperability tests, in particular, are simplified by generating reader test signals with a signal generator. With software option R&S®SMx/AMU/AFQ-K6 chipcards can be tested without a reader

English - 25 de jan. de 2010

Rohde & Schwarz offers a complete test solution for WiMAX applications by combining its Signal Generator R&S SMU200A and Signal Analyzer R&S FSQ plus the appropriate options. This application note provides an overview of the differences between OFDM and OFDMA and demonstrates, how convenient it is to generate and analyze WiMAX OFDMA signals according to standard IEEE 802.16e-2005.

English - 23 de mai. de 2007

Recent mobile test methods could not evaluate the quality of data reduced speech signals with different coded and decoded signals. The Perceptual Evaluation of Speech Quality (PESQ) provides the solution for this measuring problem. WCDMA PESQ is an add-on tool for CMUgo for automatic measurement of the PESQ for WCDMA mobile phones according to recommendation ITU-T P.862.1 featuring selectable fading profiles and variable Additional White Gaussian Noise (AWGN).

English - 5 de jan. de 2012

Multiple Input Multiple Output (MIMO) is an integral part of LTE. Vector signal generators and signal & spectrum analyzers from Rohde & Schwarz support LTE measurements with up to 4 antennas. This Application Note covers 2x2 MIMO in the LTE downlink. Remote control programming is demonstrated by examples for a free-of-charge program.

English - 9 de out. de 2014

Most of the tests specified in the standard TIA-98 that a CDMA2000 mobile station has to fulfill can be performed by the Universal Radio Communication Tester R&S®CMU200 without further assistance. Other tests, however, require additional instruments, for instance for generating interfering signals. Some tests of the standard TIA-98 need features that a tester optimized for production cannot offer, for example high dynamic spectrum analysis up to 12.75 GHz. This Application Note shows how to perform these tests easily with the remote-control software CMUgo, using the R&S®CMU200 in combination with R&S®SMU, R&S®SMJ, R&S®SMIQ, or R&S®SML signal generators, and R&S®FSQ, R&S®FSU, R&S®FSP, or R&S®FSL spectrum analyzers. New test items and sequences will therefore be included in the CMUgo software v1.9.8 to remote-control the R&S®CMU200, as well as the signal generators and spectrum analyzers. They are presented in this Application Note.

English - 5 de jan. de 2012

Recent mobile test methods could not evaluate the quality of data reduced speech signals with different coded and decoded signals. The Perceptual Evaluation of Speech Quality (PESQ) provides the solution for this measuring problem. CDMA2000 PESQ is an add-on tool for CMUgo for automatic measurement of the PESQ for CDMA2000 mobile phones according to recommendation ITU-T P.862.1 featuring selectable fading profiles and variable Additional White Gaussian Noise (AWGN).

English - 5 de jan. de 2012

The aim of this application note is to provide information regarding Rohde & Schwarz instrument drivers. This paper shall help application engineers and software developers to easily get an understanding of advanced techniques to develop test and measurement (T&M) applications by utilizing Rohde & Schwarz instrument drivers. Furthermore the nomenclature used for Rohde & Schwarz instrument drivers will be explained.

English - 1 de jan. de 2013

This document describes how a Windows®-based R&S® T&M instrument is remotely operated by an Apple iPad as if working on it locally. Step-by-step procedures are provided for setting up and configuring the T&M instrument and the iPad. On the iPad, a special App implements the Windows® 'Remote Desktop' functionality. T&M instrument and iPad are connected via WLAN (also denoted as Wi-Fi network).

English - 28 de mar. de 2013

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

English - 22 de out. de 2009

English - 4 de set. de 2015

This Application Note describes signal generation with carrier aggregation for 802.16m based on 802.16e signals in practical important configurations using one or more Vector Signal Generators R&S SMU200A or R&S SMBV100A. Various examples illustrate how to analyze these signals using the Vector Signal Analyzer R&S FSQ, R&S FSG or R&S FSV.

English - 22 de mar. de 2010

Existing GSM mobile communication systems have the potential to double voice capacity by adding the “Voice services over Adaptive Multi-user channels on One Slot” (VAMOS) feature as specified in the 3rd Generation Partnership Project (3GPP) GSM/EDGE Radio Access Network (GERAN) Release 9 specifications. This application note describes the VAMOS feature from an air interface perspective in detail and specifically illustrates the VAMOS testing solution offered by Rohde & Schwarz test equipment.

English - 16 de ago. de 2011

During the design process of chipsets or modules, FPGA-based hardware emulators are utilized to perform early tests with real test and measurement instruments. These hardware emulators usually run at artificially reduced speed, but apart from that function like the finished design. In this application note we explain how to test FPGA-based hardware emulators using Rohde & Schwarz vector signal generators for creating suitable real-time test signals at reduced sample rates. We further explain how to correctly adapt AWGN signal generation and fading simulation for “slow I/Q”.

English - 10 de dez. de 2012

Multiple antenna systems, known as MIMO systems, form an essential part of today’s wireless communications standards. The multi-antenna technology efficiently boosts the data throughput without requiring additional bandwidth or transmit power and has thus become a key technology. Rohde & Schwarz offers compact and versatile MIMO test solutions with realtime fading including simulation of channel correlations.This application note explains how to set up Rohde & Schwarz signal generators for 2x2, 4x2 and 2x4 MIMO tests with a focus on signal routing, synchronization of the generators, and leveling. Please note that there is a successor application note available: 1GP97. It explains how to use the R&S®SMW200A vector signal generator for testing higher order MIMO systems such as 3x3 and 4x4.

English - 14 de out. de 2009

TETRA, the TErrestrial Trunked RAdio, is the professional mobile radio standard (PMR) used world wide by governmental safety and security authorities and organizations, as well as by private utilities from energy suppliers through to transport. Rohde & Schwarz provide test instruments idealy suited for both the development and production of TETRA base stations and user equipment, as well as for network planning, network coverage and quality of service, network monitoring and optimization, maintenance, and service. This Application Note shows examples for measurements with R&S instruments covering the entire range of TETRA test requirements.

English - 25 de abr. de 2013

Modern radio communication systems have to provide higher and higher data rates. As conventional methods like using more bandwidth or higher order modulation types are limited, new methods of using the transmission channel have to be used. Multiple antenna systems (Multiple Input, Multiple Output – MIMO) gives a significant enhancement to data rate and channel capacity. This application note gives an introduction to basic MIMO concepts and terminology and explains how MIMO is implemented in different radio communications standards.

English - 2 de jul. de 2009

LTE-Advanced comprises multiple features enhancing the basic LTE technology firstly specified in 3GPP Release 8. LTE including the LTEAdvanced improvements was approved by ITU to comply with IMT-Advanced requirements and thus being a true 4G mobile communication system. The different technology components of LTE-Advanced have different market priorities and require different testing strategies. This application note summarizes the Rohde &Schwarz test solutions for LTE-Advanced (Release 10) using Vector Signal Generators, Signal and Spectrum Analyzers and the Wideband Radio Communication Tester.

English - 3 de set. de 2014

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

English - 28 de jan. de 2016

The foregoing application note is intended for everyone who desires to become more familiar with the use and upload of custom data in ARB, digital modulation and RF list mode. Particularly, this note describes the instruments R&S® SMW200A, R&S® SGT100A, R&S® SMBV100A, R&S® SMU200A, R&S® SMJ100A and R&S® SMATE200A and provides an overview of already available solutions as well as it gives hints for the writing of own applications. Please also see the application note 1GP88 for the ARB Toolbox software and the application note 1GP96 for the CDM-Toolbox software.

English - 21 de dez. de 2010

Multiple antenna systems, known as MIMO systems, form an essential part of today’s wireless communications standards. This multi-antenna technology efficiently boosts the data throughput without requiring additional bandwidth, and has thus become a key technology. Rohde & Schwarz offers high-performance MIMO test solutions which provide static conditions without fading as well as simulation of complex fading scenarios.This application note explains how to set up 4x4 and 8x8 MIMO systems using the R&S®SMBV100A signal generator for measurements under static conditions without fading.For simulation of complex fading scenarios please refer to application note 1GP97.

English - 10 de mar. de 2010

3GPP TS36.141 defines conformance tests for EUTRA base stations (eNodeB). Release 14 added several tests, especially for enhanced License Assisted Accsess (eLAA).This application note describes how all required transmitter (Tx) tests (TS36.141 Chapter 6) can be performed quickly and easily by using signal and spectrum analyzers from Rohde & Schwarz. A few tests additionally require signal generators from Rohde & Schwarz.Examples illustrate the manual operation. A free software program enables and demonstrates remote operation.The LTE base station receiver (Rx) tests (TS36.141 Chapter 7) are described in Application Note 1MA195.The LTE base station performance (Px) tests (TS36.141 Chapter 8) are described in Application Note 1MA162.

English - 11 de mai. de 2016

DVB-T Bursted Noise is a tool for generation of DVB-T compatible noise signals. The IQ data can tranferred to WinIQSIM™ / WinIQSIM2™ for further processing and transmission to an AMU, AFQ, AMIQ, SMU, SMIQ.

English - 8 de jul. de 2009

This application note outlines two different approaches for remote-controlling Rohde & Schwarz instruments out of MathWorks MATLAB:The first one uses VISA connection and direct SCPI commands.The second approach takes advantage of Rohde & Schwarz VXI plug&play instrument drivers and MATLAB Instrument Control Toolbox.

English - 12 de jun. de 2017

The use of Rohde & Schwarz device drivers under VEE software is not complicated. However, a number of factors are involved, the errors that occur are often difficult to diagnose. This application provides easy and detailed support for installation and troubleshooting using National Instruments or Agilent GPIB boards.

English - 20 de dez. de 2012

Describes the specific functions of the application.

English - 4 de fev. de 2016

The user manuals describe the digital standards supported by the signal generators R&S®SMU200A, R&S®SMATE200A, R&S®SMJ100A and R&S®AMU200A.

English - 28 de jan. de 2016