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The well-established R&S®CMW270 wireless connectivity tester with a bandwidth of 160 MHz emulates an IEEE 802.11ax access point to test the RF properties and performance of a WLAN station (STA) under realistic conditions – from development to production.

26-Mar-2024

Rohde & Schwarz offers comprehensive test and measurement solutions for embedded design challenges for today’s requirements for efficiency, safety, reliability and interoperability. The highlights will be showcased at the embedded world Exhibition & Conference 2024 in Nuremberg, Germany.

An automated test solution based on the R&S®CMW wideband radio communication tester fully supports the new test cases for real-time submeter positioning.

10-Jun-2022

R&S CMW Wideband Radio Communication Tester - Platform overview - Product Brochure

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R&S®CMW Wideband Radio Communication Tester - Platform overview - Product Brochure

R&S®CMW Wideband Radio Communication Tester - Platform overview - Product Brochure FR

CMW Support of WLAN 802.11ac

21-Oct-2013 | AN-No. 1CM101

08-Feb-2018

Mobile World Congress 2018: Rohde & Schwarz to present cutting-edge T&M equipment for 5G, LTE-A Pro, IoT and IP security

This document describes WLAN tests which rely on communication (signaling) between R&S CMW and device under test (DUT) and on transmission of packet data over WLAN. On the R&S CMW side the WLAN Signaling application is required, for some tests also the Data Application Unit (DAU). The test principles and the necessary settings are explained and background infor-mation is given. Step-by-step procedures are provided for the main configuration tasks.

08-Feb-2016 | AN-No. 1C107

Bluetooth® testing with Rohde & Schwarz devices

This document describes the critical parameters and provides step-by-step procedures for the configuration.

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

R&S®Forum for Instrument Remote Control

28-Jun-2018 | AN-No. 1MA196

This application note gives the guidance of how to perform the BLE 5.1 DF RF tests according to the RF test specification of BT 5.1 by using the Rohde & Schwarz test solutions.

30-Oct-2019 | AN-No. GFM327

This document describes the direct test mode mechanisms for testing Bluetooth Low Energy devices and explains how the direct test mode connection is established. The R&S CMW uses a USB port for the direct test mode connection while the Equipment under Test (EUT) may provide a USB port, a serial port or even a 2-wire UART interface for this purpose. Installing or assigning the right driver for the EUT is the main configuration task on the R&S CMW. For EUTs with USB port, the R&S CMW provides a Bluetooth Low Energy USB driver which has to be assigned to the connected EUT.

14-Dec-2016 | AN-No. 1C105

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.

26-May-2020 | AN-No. 1DC02

This document describes the adaptive frequency hopping mechanism for improved signaling performance in Bluetooth Basic Rate and Enhanced Data Rate devices.The R&S CMW provides this feature for remote operation in TX, Loopback and Connection test mode. Thereby the R&S CMW acts as a master, while the Equipment under Test (EUT) represents the slave(s) of the piconet.

14-Dec-2016 | AN-No. 1C108

This application note explains battery life tests using RT-ZVC in combination with CMWrun and CMW500, including example applications.

17-Feb-2017 | AN-No. 1MA281

Versatile Software Tool for Rohde & Schwarz Instruments

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.

24-Dec-2017 | AN-No. 1MA074

The R&S®CMW wireless communication tester are ideal for designing and verifying Bluetooth® Low Energy (LE) circuits and modules.

27-Jan-2017

R&S CMWrun Sequencer Software Tool

The Rohde & Schwarz Bluetooth RF test solution with the R&S CMW and R&S CMWrun is closely aligned to the Bluetooth RF Test Suite. This document describes common setups for these tests and the required configurations.

04-May-2015 | AN-No. 1MA261

My SW needs to validate its usage by means of a license available in a Dongle for testing with CMW 270/290/500, which are the requirements?

Bluetooth

05-Jun-2019 | AN-No. 1MA108

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

This application note describes how to use the R&S CMW platform to perform the measurements defined in Bluetooth test specification version 5.

19-Jun-2017 | AN-No. 1MA282

The document provides the technical specifications of the R&S®WinIQSIM2 simulation software.

This application note introduces the IVI High Speed LAN Instrument Protocol (HiSLIP) and outlines its features. HiSLIP is the successor to the VXI-11 LAN remote control protocol. This document also describes guidelines for using this protocol.

12-Nov-2014 | AN-No. 1MA208

This application note outlines two different approaches for remote-controlling Rohde & Schwarz instruments out of MathWorks MATLAB.

12-Jun-2017 | AN-No. 1MA171

Development Hints and Best Practices for Using Instrument Drivers

01-Jan-2013 | AN-No. 1MA153