33 Results
Logging and charting tool for DC power supplies.
14-Nov-2019 | AN-No. 1GP122
Increase the IP connection security of your IoT device
04-Apr-2017
The need for Internet of Things (IoT) solutions can arise fast. In most cases, wireless communications modules are added to an embedded design. When designing and debugging IoT systems, many different measurements need to be performed.
03-Nov-2016
High dynamic range current measurements on IoT devices
01-Oct-2019
Integrated end-to-end data solution with IP traffic analysis and protocol statistics allows detailed analysis of data traffic generated by IoT and mobile devices.
06-Jun-2017
5G NR Reduced Capabilities (RedCap) network scanning
A deeper look into 5G RedCap technology and its verification with field measurements avoid potential coexistence issues.
23-Apr-2024 | AN-No. 8NT13
A simple concept with Azure IoT
This document describes an approach how to establish a remote connection between the instrument and the cloud using an IoT broker.
15-Dec-2020 | AN-No. GFM319
Developers can now use an oscilloscope for all necessary measurements with the R&S®RTO2000 multi-domain oscilloscope.
16-Jul-2018
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
This application note provides and overview of the technology, the details of the standard and summarizes the R&S®TSMx scanner features for LTE-M measurements.
26-Jul-2019 | AN-No. 8NT04
This application note describes Battery Life Measurements with the R&S®RT-ZVC02/04 Multi-Channel Probe. The measurements are described with the use of an oscilloscope.
17-Jan-2019 | AN-No. 1TD07
The application note guides developers and manufactures of Sigfox Devices to perform the required and recommended measurements with test solutions from Rohde & Schwarz.
15-Nov-2017 | AN-No. 1MA294
The measurements are straightforward and easily accomplished with off-the-shelf Rohde & Schwarz signal generators and signal and spectrum analyzers.
15-Nov-2018
The R&S®FPC1500 measures antenna reflection performance in order to achieve the best user experience in terms of battery life and signal coverage or reception.
05-Mar-2020
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
To ensure connectivity and trouble-free operation, each Bluetooth® enabled device has to be tested for conformance with Bluetooth SIG standards and regulatory requirements.
23-Nov-2017
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
Verifying RF ports is crucial for minimizing lost power and maximizing battery life. The R&S®FPC1500 is an easy-to-use and costeffective tool for this type of verification.
05-Mar-2020
This application note gives a short introduction to NB-IoT (Internet of things) and shows the easy measurements with Rohde & Schwarz instruments like transmitters and test receivers.
30-Jun-2017 | AN-No. 1MA296
This application note shows developers and manufacturers of devices with LoRa wireless technology how transmitter measurements are conducted in line with FCC Part 15.247.
29-Nov-2017 | AN-No. 1MA295
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
In this whitepaper we introduce the NB-IoT technology with an emphasis on the tight connection to LTE.
08-Aug-2016 | AN-No. 1MA266
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 aims to explain test procedures and characterization of the relevant parameters for active phased array antennas.
04-Jul-2016 | AN-No. 1MA248
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
NB-IoT field-tolab testing with R&S®CMWcards
19-Feb-2019
Rohde & Schwarz mobile network testing provides a unique combined test solution that accurately measures the DL coverage using network scanners.
20-Feb-2018
Rohde & Schwarz offers the R&S®CMW500 radio communication tester and the R&S®CMW290 functional radio communication tester to meet different testing needs; R&S®CMWcards for C-IoT
15-Oct-2018
This application note describes how all required performance tests can be performed quickly and easily by using vector signal generators.
11-May-2016 | AN-No. 1MA162