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Secondary surveillance radar (SSR) bridges the gap between communications systems and classic radar systems. Despite the increasing capabilities of mobile communications, SSR remains a major component in airspace surveillance.

17-May-2021

For this video, we will be using a 2 GHz R&S®RTO oscilloscope, an 8 GHz R&S®ZND two-port VNA as well as the R&S®ScopeSuite automated test software. Webinar, Automotive, Ethernet This webinar will focus on 1000BASE-T1 automotive Ethernet compliance testing based on the Open Alliance (OA) TC8 specification for the physical layer.

The DUT operates in Test Mode 4 which is a PRBS sequence and it is exposed on a 125MHz disturber signal which comes out of theB6 signal generator which is integrated in the RTO6 oscilloscope. The ScopeSuite software provides a step by test foto guided test execution and reports the test results.

RTO2000, toolbar, measurement functions, fast access The toolbar at the top of the screen provides access to frequently used functions such as measurements, zoom and FFT. Configure measurement in a few seconds by simply activating the measurement setup in the toolbar and choosing the desired measurement function and source channel in the sidebar.

This document is divided in two parts and starts with an introduction in AC-DC conversion principles in general. It will present the most common circuits used for different power levels. The switching mode power supply (SMPS) converter will be the main focus as they are used everywhere in the electronics. Especially the flyback converter design in different flavors are highlighted. Nevertheless, all measurements are also applicable for other SMPS converter designs operating at higher power levels.In the second part of this document, most relevant testing methods and procedures of an AC-DC converter are highlighted. For each testing section, a fundamental part will be upfront discussed and it is followed by a presentation of a suitable measurement method. In this second part, the device under test (DUT) is considered as black box device and thus the structure is similar. Therefore, the testing parts consists of methods related to input tests, output tests and a combination of both like efficiency. Of course, some test performed at the output of the converter are also relevant for DC-DC converter, e.g. the validation of the output ripple.

14-Nov-2022 | AN-No. 1SL387

長さを計測するためには 正確な定規を頼りにします。同様に 適切なプローブを正しい方法で使用することで、測定確度は向上します。

12-Nov-2020 | Press Releases

Test and measurement specialist Rohde & Schwarz extends its support to the University of New Hampshire Interoperability Laboratory (UNH-IOL) with an extension to their compliance test services. As a result, UNH-IOL customers can now achieve compliance for automotive Ethernet cables and connectors (link segment) based on the OPEN Alliance TC9 working group test specification supporting both unshielded (UTP) and shielded twisted pair cables and connectors (STP).

The radio unit activity versus power consumption is monitored using the R&S RTO oscilloscope to detect short power pulses or spikes. The results make it easy to evaluate energy efficiency measures such as advanced sleep modes and provide ratings for radio units based on their power consumption.

In this demo, Rohde & Schwarz and VIAVI Solutions in collaboration with Analog Devices are showcasing how advanced energy saving features such as microsleep DTx or discontinuous transmit on an O-RU platform save energy under real-world traffic loads - measured and validated through the R&S®RTO6 oscilloscope, the R&S®NGT power supply and the VIAVI TM500 O-RU tester.

This results in minimal trigger jitter without postprocessing correction as well as high sensitivity that can be extended up to 16 bit in HD mode. 16-bit, low noise, RTO2000, high definition, precise measurement The unique digital trigger system from Rohde & Schwarz uses the sampling point of the A/D converter in the acquisition path so that the trigger system's input data is identical to the displayed

03-May-2023 | Press Releases

At IPAC’23 in Venice, Italy, Rohde & Schwarz demonstrates solutions that meet high precision particle accelerator requirements, address challenges in elementary particle research, particle therapy applications, material characterization, precise beam forming and monitoring as well as safe storage.

This Application Note gives 10 useful Tips & Tricks for the users of Rohde & Schwarz attribute-based instrument drivers.

30-Jan-2017 | AN-No. 1MA228

Rohde & Schwarz Drivers under VEE - Installation and Troubleshooting

20-Dec-2012 | AN-No. 1MA035

Efficient analysis of power and signal integrity and EMC - Flyer

In addition the RTO6 can be used to monitor the communication between the two automotive Ethernet devices and also check the frequency response and spectrum of the noise signal source coming from the SMW. 1000BASE-T1, Signal Quality Indicator (SQI) 1000BASE-T1 interoperability test

RTO2000, signal flow diagrams, dialog boxes, crosslinks Signal flow diagrams in the dialog boxes visualize the signal processing, making it easier to configure measurements. Crosslinks take you directly to logically related settings. Forward/back buttons help you navigate quickly between dialog boxes. Semi-transparent dialog boxes are an elegant way of keeping everything in view.

This paper describes the characterization of aluminum electrolytic capacitors specifically used in AC-DC power converter applications. It will be discussed why this capacitor technology is critical regarding lifetime and why it cannot be substituted simply by any another capacitor technology. Different aging effects of the capacitor will be discussed. Usage of the capacitor in different AC-DC converter topologies will be presented. Simulation circuits will be used to analyze the capacitor in more detail before suitable measurements will be performed to demonstrate a real example of a switching-mode power supply (SMPS).After the introduction into the aluminum electrolytic capacitor basics and theory, this paper will also present all important and possible measurements of capacitor parameters, like capacitance, equivalent series resistance (ESR) and ripple current. This includes in-circuit measurement which can be performed with an oscilloscope. An LCR-bridge is used to obtain high accuracy measurements in addition. A comparison between the two measurement methods will be presented. Furthermore, the required measurement hardware for the in-circuit measurements and the bridge measurement will be discussed and presented.Lastly, two different lifetime calculation methods are presented and a real example is used to compare the advantages and disadvantages of the different methods.Thanks to Mr. Frank Puhane from Würth eiSos GmbH & Co. KG who provided me with all aluminum electrolytic capacitor samples including the prepared capacitor with build-in temperature sensors to perform all measurements. Furthermore, his great expertise was very beneficial and helpful to create this premium application note.

07-Feb-2023 | AN-No. 1SL388

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.

30-Sep-2020

This white paper describes how a QAgent deployment might be handled to lessen the impact on production or lab environments.

27-Oct-2021 | Press Releases

Rohde & Schwarz is presenting its solutions live at productronica 2021, the leading global trade show for electronics development and production. The focus is on T&M equipment for latest technologies including automotive radar, satellite communications, Wi-Fi 7 and 5G. High throughput and low cost are essential in production environments, and Rohde & Schwarz solutions support exactly these goals. Trade show visitors will find the following Rohde & Schwarz highlights and more in hall A1, booth 375 at Messe München.

Generating models with a VNA and using these on an oscilloscope via the deembedding

23-May-2023 | AN-No. 1SL393

09-Nov-2022 | Press Releases

Rohde & Schwarz showcases at electronica 2022 (booth A3.307) the new R&S MXO 4 oscilloscope plus a wide range of test and measurement solutions tailored to developers and test engineers.

R&S VSE-K70x/FSx-K70x/FPx-K70x Vector Signal Analysis Application - Specifications

Comprehensive test solutions guide for production and R&D

Small cell is a compact base station with smaller form factor and lower transmission power in comparison to the conventional macro base station. It covers relatively small area and serves less users. Usually, small cell can be integrated into the existing mobile network. By the evolution of radio access technology, the role of small cell has been changing through the evolution path. In the 2G/3G time, its role was to provide coverage in corner cases. Later during LTE, networks are not just providing coverage but capacity too. Small cells were then used to provide the addition capacity where required without adding additional spectrum. Now in 5G era, network operators use densification as an important strategy to provide seamless 5G services which demand coverage, capacity and performance too. With use cases requiring the 5G millimeter wave (mmW) rollouts, it makes sense to use small cells for densification due to the propagation characteristics of mmW.In this application note, we will shed light on the testing aspects of a small cell throughout the product life cycle with particular focus on the production test solution for the small cell device under test (DUT) in FR2 (frequency range 2, mmW frequency band) in Over the Air (OTA) environment for option 6 split based on radio communication tester R&S®CMP200 and OTA chamber R&S®CMQ200. The document is complemented with more insights into test solutions used in typical R&D test applications towards the second half of the application note.

19-Jun-2023 | AN-No. 1SL395

This document provides the technical specifications of the R&S®RT-Zxx high voltage and current probes

Increasing demands on power distribution networks have resulted in smaller DC rails, as well as a proliferation of rails that ensure clean power reaches the pins of integrated circuits.

07-Mar-2017

Signal model based approach to joint jitter and noise decomposition - First published at DesignCon 2020 - White Paper

TC8 – OPEN Alliance - Flyer

This application note expands modulation bandwidth up to 2 GHz and covers both V- and E-band examples.

18-Jun-2015 | AN-No. 1MA257

This application note explains how to convert different Rohde&Schwarz I/Q file formats among each other using the supplied software tool.

23-Sep-2015 | AN-No. 1EF85