This application note provides information how to perform noise figure measurements under pulsed or bursted conditions with spectrum analyzers and noise sources, and introduce the capabilities of the Rohde & Schwarz FSW signal and spectrum analyzer to perform this measurement.

28-Jun-2018 | AN-No. 1EF103

Automotive Infotainment Testing

19-Feb-2018

Two R&S®ETL TV analyzers or two R&S®ETC compact TV analyzers are used to measure the receive level of a car antenna against that of a reference antenna. The R&S®BCDRIVE broadcast drive test software exports measured data for display in Google Earth.

19-Feb-2015

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.

02-Jul-2009 | AN-No. 1MA142

The R&S®SMF100A microwave signal generator offers a remote emulation feature that makes it possible to control the instrument by commands other than the built-in native SCPI commands. This feature allows the user to replace signal generators, e.g. from other manufacturers, with the R&S®SMF100A without having to change the remote control code. This application note describes how to use the remote emulation feature in general. Furthermore, it describes in detail the remote emulation for each supported instrument, limitations of the individual emulations and the remaining differences between the emulated and the original commands.

11-Oct-2016 | AN-No. 1GP92

Digital pre-distortion (DPD) is a common method to linearize the output signal of a power amplifier (PA), which is being operated in its non-linear operating range.The R&S K18D application family offers a very easy-to-use method to pre-distort amplifiers without modelling the DUT.However, many engineers in PA design request a simple and easy-to-use tool that delivers a DPD model applicable to any real-world signal.This application note with the accompanying software tool allows engineers without in-depth knowledge of DPD or remote programming to generate a DPD model and verify it against the DUT, based on the results of the K18D application.

25-Mar-2019 | AN-No. 1EF105

Some of the new Rohde & Schwarz instruments, such as the R&S®OSP and R&S®FSC, only have a LAN interface. To be able to operate these instruments in a purely GPIB system, a converter must be connected between the instrument and the GPIB. Rohde & Schwarz now offers such a GPIB to LAN converter.

03-Aug-2010 | AN-No. 1SP30

The R&S MATLAB® Toolkit for R&S® NRP-Z Sensors provides routines for remote controlling these instruments via USB or the R&S® NRP Power Meter. This application note describes how to access the sensors using the R&S® VXI PnP driver. It also contains a set of scripts that perform commonly needed tasks, such as opening a sensor connection or performing measurements.

05-Mar-2011 | AN-No. 1GP61

The R&S®RTO6 oscilloscope has an in-depth tool for debugging custom and commercial off-the-shelf serial buses for the avionics and aerospace industries.

20-Dec-2023

This application notes describes remote operation or monitoring of the spectrum analyzers R&S® FSL3, R&S® FSL6, R&S® FSL18 through a standard web browser. The common cross-platform technology Virtual Network Computing (VNC) is used as a server on the instrument.

07-Jan-2009 | AN-No. 1EF66

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.

23-May-2007 | AN-No. 1EF58

This application note describes how to use two or more Arbitrary-/Function Generators R&S® AM300 to generate multi-phase-sychronized signals, which are required in some applications.

27-Jun-2007 | AN-No. RAC-0705-0038

Reflection measurements are a common way of assessing antenna system performance. When a minimum amount of the transmitted signal is reflected, it indicates that the transmission energy can reach the intended coverage. Undesired high reflection causes the system to be inefficient and can damage components. Reflection measurements can be expressed in terms of return loss, VSWR and reflection coefficient.

13-Nov-2017

This Application Note briefly explains the theoretical background regarding phase noise before describing the phase noise option for the R&S SFU. You will see how the phase noise profile creator application software can be used to generate specific phase noise curves and how to output them with the aid of the R&S SFU.

22-Aug-2007 | AN-No. 7BM63

For establishing a WLAN connection between R&S®CMW and device under test (DUT), the WLAN properties at the R&S®CMW have to be adapted to the test conditions. These can vary in several aspects, particularly due to the different WLAN standards and characteristics of the DUT. This document describes the critical parameters and provides step-by-step procedures for the configuration.

08-Dec-2015 | AN-No. 1C106

How I/Q noise cancellation can help significantly improve the EVM performance of your signal and spectrum analyzer.

16-Nov-2023

The Rohde & Schwarz power consumption analysis tool helps evaluate power consumption data collected with Rohde & Schwarz power supplies.

01-May-2023

The R&S®SMB100A RF and microwave signal generator offers a remote emulation feature that makes it possible to control the instrument by commands other than the built-in native SCPI commands. This feature allows the user to replace signal generators, e.g. from other manufacturers, with the R&S®SMB100A without having to change the remote control code. This application note describes how to use the remote emulation feature in general. Furthermore, it describes in detail the remote emulation for each supported instrument, limitations of the individual emulations and the remaining differences between the emulated and the original commands.

20-Mar-2012 | AN-No. 1GP89

When analyzing the signal integrity performance of DDR interfaces, separating read and write cycles has been a challenging task. Comprehensive trigger capabilities are required – especially when attempting to recreate the eye diagram in realtime.

26-Sep-2018

An operator of a network of terrestrial transmitter stations wants to have the most cost-effective means of monitoring the network's numerous transmitter sites from a main monitoring center. Modern error sensors such as the R&S DVM50/100 and the R&S ETX-T are used for diverse monitoring functions at the individual transmitter sites as well as to transmit monitoring status to the main monitoring center. These error sensors have a function-rich SNMP agent designed specifically for this purpose. Simple network management protocol (SNMP). Despite the 'simple' in the protocol name, some users are still afraid to use it for remote control and monitoring. This Application Note therefore provides a user-friendly and practical look at, for example, how the monitoring functions via SNMP can be used for the R&S DVM. The following sections provide a brief look at the SNMP protocol, the R&S DVM/ETX implementation, and useful tools for working with SNMP. A description of how SNMP can be linked to various development environments (C++, C#, Java) is also provided.

16-Mar-2007 | AN-No. 7BM65

While Mobile phones are allowed to require approximately 3 time slots for switching from transmission to reception, base stations must be able to transmit and receive at a new frequency in every time slot in the frequency hopping mode. This behaviour must of course be tested and measurements carried out on the base station transmitter and receiver. Since there is no signal generator which is able to settle at different frequencies from one to the next time slot with GSM modulation, a solution to this problem was found by linking two Signal Generators SME in such a way that they alternately provide signals at different frequencies.

01-Jul-1999 | AN-No. 1GPAN28

Most of the tests specified in standard TS 34.121 that 3GPP WCDMA user equipment (UE) has to fulfill can be performed solely by the Universal Radio Communication Tester CMU200 universal radio communication tester. Other tests, however, require additional instruments for generating one or more interfering signals, for fading setup or for high dynamic spectrum analysis. This application note shows how easy it is to perform these tests with the remote-control software CMUgo, using the CMU200 in combination with R&S signal generators and R&S spectrum analyzers.

09-Dec-2008 | AN-No. 1MA130

MobiDemo is an application software for controlling a combination of Generator SMIQ and Analyzer FSE/ FSE-B7 or FSIQ. MobiDemo offers a convenient user interface to facilitate testing of components used in digital mobile radio systems, for instance amplifiers or filters. The software can handle the GSM, PHS, IRIDIUM, IS-95 and W-CDMA standards. The corresponding test signals can be activated on SMIQ with a few keystrokes and mouse clicks. FSE/FSIQ is set up in accordance with SMIQ and analyzes signals in the modulation analysis or adjacent-channel power measurement mode. The settings for SMIQ and FSE/FSIQ are transferred via the IEC/IEEE bus.

09-Jul-1999 | AN-No. 1MA11

Automotive Infotainment Testing

21-Feb-2018

This application explains the setup and procedure to measure the exact time relationship between the CDMA RF signal and even-second clock. The accurate knowledge of this time relationship is e.g. necessary for test setups which require the synchronization of the R&S®CMU200’s CDMA2000 system with a GPS simulator.

09-Nov-2007 | AN-No. 1CM33

The IP connection security analysis solution for the R&S®CMW500 platform identifies IP connection vulnerabilities in telematics units at an early stage of development.

18-Jul-2017

End-to-end conformance testing of 4G and 5G next generation eCall (NG eCall) modules under controlled network conditions

13-May-2024

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).

05-Jan-2012 | AN-No. 1MA136

This application note describes how to connect a communication tester CMU200 with B-17 (IQ-IF interface option) to a ABFS fading simulator with B-49 dynamic fading option (3GPP) for generating signals under fading conditions. An additional program performs a semi automatic level correction of power fed to the user equipment.

25-Jun-2008 | AN-No. 1MA54

The R&S®SMW200A vector signal generator has the outstanding ability to simultaneously generate up to eight independent signals from a single instrument. The advanced multi-channel architecture allows realizing even complex applications like MSR, carrier aggregation, MIMO or enhanced interference scenarios with a minimum of effort.This application note gives an overview of common multi-channel application examples and how to equip the Rohde & Schwarz signal generator R&S®SMW200A appropriately.

12-Mar-2018 | AN-No. 1GP106