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Level Error Calculation for Spectrum Analyzers

13-Jan-1998 | AN-No. 1EF36

This white paper provides an overview of test solutions addressing current and future requirements for antenna verification.

11-Nov-2016 | AN-No. 1MA286

MIPI D-PHY is a low-power, cost-effective physical layer interface, essential in mobile devices and advanced technology systems. It's a high-speed, source-synchronous interface used in smartphone cameras, smartwatch displays, drones, in-car entertainment, automobile cameras, and radar sensors. This application note explores MIPI D-PHY's features, functionality, and testing practices for device compliance, addressing common issues. It highlights Rohde & Schwarz's equipment for ensuring compatibility and solving issues with MIPI D-PHY, aligned with MIPI D-PHY specification version 2.5.Developed by the MIPI Alliance, D-PHY connects cameras and displays to a host processor via CSI-2 or DSI protocols. It features a master-slave, asymmetrical design for reduced link complexity. Key aspects include a unidirectional clock, optional data signal directions, different data rates for half-duplex operation, point-to-point communication, and high-speed (HS) and low-power (LP) modes for data transfer and battery preservation. In HS mode, D-PHY uses differential signaling with specific impedance, while in LP mode, it operates in a single-ended manner with high impedance termination.The application note from Rohde & Schwarz provides insights into characterizing and debugging MIPI D-PHY, offering conformance verification with MIPI Alliance standards and protocol decoding options.

31-Jan-2024 | AN-No. 1SL410

The R&S®Pulse Sequencer software offers an easy way to simulate moving radar emitters and a moving receiver for EW receiver tests.The software together with the R&S®SMW200A vector signal generator is a powerful radar simulator

18-Sep-2018

The R&S®SMA100B offers outputs for the analog input signal of the ADC as well as the clock input signal in one single instrument - both with outstanding signal purity.

11-Jan-2021 | AN-No. 1GP66

Distance-To-Fault (DTF) Measurement in 75 Ohm Systems with the R&S FSH3-TV

21-Sep-2006 | AN-No. 7BM60

This application note explains how to use the SMW for testing higher order MIMO systems by presenting different key applications.

24-Feb-2016 | AN-No. 1GP97

R&S®CMWcards is an intuitive and user-friendly software application that makes NB-IoT OTDOA positioning design verification easier than ever.

26-Nov-2018

R&S SFQ to R&S SFU SCPI Transcription + Cross-Reference List

23-Jun-2006 | AN-No. 7BM56

An error in DVB-T2 signal feed to the transmitter can cause failure of the entire DVB-T2 network. For this reason, the established ETSI TR 101 290 DVB measurement guidelines have been expanded to include measurements for the new T2-MI interface. The instruments of the R&S DVMS family monitor T2-MI signals by performing these newly defined measurements and even provide in-depth analysis of these signals.

01-Sep-2011

Reliable testing of HARQ feedback and UL timing adjustment on LTE eNBs with the R&S®SMW200A simplifies eNB performance testing and eliminates the need for test UEs

01-Jun-2016

Automatic Measuring in Standard M/PAL using a M/NTSC Video Analyzer UAF or Video Measurement System VSA

02-Nov-2009 | AN-No. 7BM14

Today’s infotainment units offer a wide range of features to truly embody the concept of the connected car.

14-Jun-2018

DOCSIS has become the established standard for return channels when it comes to implementing interactive services in broadband cable networks. The quality of these signals is essential to network efficiency. The analysis can be done using the highprecision R&S®ETL, R&S®EFA and R&S®FSH3-TV TV test receivers that have proven themselves in the downstream. These T & M instruments can be quickly and easily configured for measuring the upstream.

13-Jul-2012

It is extremely important to test the application level functional performance of home automation products in the presence of interference.

11-May-2020

T-Check Accuracy Test for Vector Network Analyzers utilizing a Tee-junction

04-Aug-1998 | AN-No. 1EZ43

A step by step HOW TO guide to perform manual and automated wireless coexistence testing

At the end of the year 2020, there were over 20 Billion internet of things (IoT) products in the world operating using the licensed and unlicensed frequency bands. This growth trend is projected to keep steady over the coming years as more and more people adopt to a smarter and more connected lifestyle. This will result in a much busier and challenging RF environment than the one we have today. In order to understand the complexity of the RF spectrum, a white paper was published in 2021 from Rohde & Schwarz, which featured RF spectrum activity at multiple locations observed at different times of the day. The locations were selected based on population densities and the amount of known RF transmitters & their frequencies at those locations. It was also concluded that the ISM bands on average have higher channel utilization since most IoT devices take advantage of the unlicensed spectrum. The paper recommended, that while performing wireless coexistence testing, the test conditions should reflect the operational RF environment that the device is intended to operate in. Otherwise, the characterization of RF performance would only reflect ideal case which doesn’t exist in real world operation. Since it is not always possible to test all devices in the real world, relevant test methodologies need to be setup to replicate the real world as much as possible.This will help us get a better understanding of how the receiver of the RF device will behave under different RF conditions. It is also recommended to perform measurements in order to understand the behavior of the device in the future when the spectrum will get even more challenging. Therefore, a through characterization of the capability of the RF receiver to handle in-band and out-of-band interference signals in also of interest.In terms of regulatory compliance requirements for ensuring wireless coexistence performance, the ANSI C63.27 is currently the only published test standard that provides guidance on how to perform coexistence testing on devices. The test complexity is based up on risk imposed on the user’s health in the event of a failure caused by an or a plurality of interference signal. The standard also gives device manufacturers guidance regarding test setups, measurement environments, interference signal types and strategy, performance quality measurement parameters for physical layer using key performance indicator (KPI) and application layer parameters for end-to-end functional wireless performance (FWP).In this application note, the guidance provided by the ANSI C63.27-2021 version regarding test setup, measurement parameter and interference signal have been followed. It will give the reader a clear idea on how to configure standardized test instruments from R&S in order to generate the wanted signal as well as unintended interference signals and conduct measurement to monitor device performance in terms of PER, ping latency and data throughput.This application note provides step-by-step instruction on how to perform measurements using conducted and radiated methodology. Both manual and automated instrument configuration approach is explained in this document.The automation scripts are written using python scripting language and are available for download with this application note, free of charge. Official required to run the scripts are available on the PYPI database.

10-Nov-2022 | AN-No. 1SL392

Best practices for mobile network testing for business-critical applications

A best practice set of tests, KPIs and limits verify the performance of a business-critical private network for communicating machines.

13-Aug-2024 | AN-No. 8NT17

The numerous supply voltages of FPGAs, CPUs and DSPs need to be powered-up in a specific order to ensure reliable operation.

08-Oct-2018

How To Demonstrate Improved ACLR Dynamic Range With FSU and Noise Correction

16-May-2002 | AN-No. 1EF49

This application note describes remote operation or monitoring of the signal and spectrum analyzers R&S® FSV3, R&S® FSV7, R&S® FSV13, R&S® FSV30 through a standard web browser.

15-Jan-2009 | AN-No. 1EF67

Program for Measurement Uncertainty Analysis with Rohde & Schwarz Power Meters

26-Jul-2001 | AN-No. 1GP43

CDMA2000 1xEV-DO Rel. B Non-Signaling Testing

29-Jun-2009 | AN-No. 1CM74

This application note presents a solution for testing the complete radar system by generating any kind of radar echo signals.

01-Aug-2016 | AN-No. 1MA283

This paper will discuss several measurement settings which affect measurement speed and provide suggestions on improving this overall speed.

08-Oct-2020 | AN-No. GFM354

WiMAX - Generating and analyzing 802.16-2004 and 802.16e-2005 signals

10-Jul-2006 | AN-No. 1MA97

Early wafer-level qualification of RF components ensures quality and saves money

14-Jul-2022

Description of 20 MHz demodulation bandwidth for level measurement with the R&S®EB500 monitoring receiver.

09-Oct-2012

Easy power sequencing and ripple noise analysis with MXO oscilloscopes

22-Apr-2024

CDMA2000^® Base Station Tests With the R&S^®SMU200A Vector Signal Generator and Rohde & Schwarz Spectrum Analyzers

15-Sep-2009 | AN-No. 1MA109