Focus on Test

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from Rohde & Schwarz

Testing is key to any electronics activity. It is necessary to test an item to ensure that it operates correctly. The test equipment is also key as it provides the functionality to be able to make the tests that are needed - having the right test equipment and knowing how to use it of great importance. In this area, discover some important insights into testing, test equipment and some useful techniques that can be used.

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R&S®RTM3000 oscilloscope

Designed as daily problem-solving tool, the R&S®RTM3000 combines the power of ten (10-bit ADC, 10 times the memory and 10.1" touchscreen) with a Rohde & Schwarz probe interface for all Rohde & Schwarz probes. The R&S RTM3000 has four times more vertical resolution than scopes using standard 8-bit ADCs, it maintains fast sampling rates at all times, and it also has a 10.1" touchscreen with gesture support. Read more . . .

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Faster debugging using specialized triggers

When a circuit is works incorrectly, there is often little time to correct the problem; design and development results must be delivered quickly. Correction can be difficult with conventional edge triggers because the error state cannot be precisely selected. Solutions tailored to the specific problem are required in this situation. This application note looks at the ways in which specialised triggering methods can be used to identify problems and issues quickly

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Fast analysis of sporadic errors with segmented memory and history function

This interesting free white-paper looks at sporadic errors in measurements. Sporadic errors cost valuable time during the development of new products. Debugging protocol-based buses is especially difficult and time-consuming because the communications pauses between the individual data packets can be very long. For example, a sensor will send a value over an I2C bus only once per minute. The oscilloscope memory typically limits the record length for analyzing errors and their history to a few milliseconds.

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Measuring with oscilloscopes

This very informative educational note covers the theory and practice oscilloscopes based on concrete measurement examples that address authentic everyday tasks.

The theoretical portion of this paper begins with an explanation of the basic operating concepts for oscilloscopes, followed by a discussion of the most important parameters to be considered when setting up and performing the exercise measurements.

The practical portion of the educational note contains detailed measurement tasks that can be performed by small groups in the university lab. These exercises are intended to demonstrate and reinforce the knowledge gained in the theoretical portion. The exercises build upon one another and demonstrate measurement tasks that are frequently encountered by engineers in daily work.

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Demystifying 5G - Ready for testing 5G NR sub-6 GHz devices in production with the R&S CMW100

The 5G NR, New Radio involves many new concepts and techniques. It will support frequency ranges up to 52.6 GHz, but initial 5G designs will use frequencies below 6 GHz with focus on 3.5 GHz. For sub-6 GHz carrier frequencies, 3GPP currently discusses a maximum bandwidth per component carrier of 100 MHz. The R&S®CMW100 communications manufacturing test set with a supported bandwidth of 160 MHz is ready for testing initial 5G NR sub-6 GHz wireless devices in production. Find out more in this webinar

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Demystifying 5G – Numerology and Initial Access Concept for 5G NR

This webinar provide an overview on the current discussions within the standardisation organisation, summarise recent decisions and explain the initial access concept while comparing it with LTE. In addition to this, the webinar shows how to generate 5G NR-like waveforms to test the performance of RF frontend modules (RFEM) and RF components such as amplifiers and filters. Find out more . . .

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The challenge of testing 5G antenna performance

Antenna testing for 5G mobile communications will present some new and interesting challenges. The wide frequency range, the greater number of antenna elements and the lack of conventional external RF connectors make 5G antenna characterisation challenging. To assess the complete performance of 5G over-the-air (OTA), e.g. beam characteristics, coexistence testing and near-field and far-field measurements, fast and accurate pattern measurements are essential. Find out more about 5G antenna testing.

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Pre-5G-NR Signal Generation and Analysis

This application note shows how to use Rohde & Schwarz signal generators and analyzers for testing early 5G New Radio components, chipsets and devices. Methods for easy creation and analysis of custom OFDM are explained. The solution provides

  • a single user interface for signal generation and analysis configuration

  • Flexible OFDM configuration and signal generation incl. flexible pilot and data allocation

  • User defined modulation schemes including complex scenarios, e.g. 5G NR PSS

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Characterization of SIGFOX Devices

SIGFOX is a low power Wireless standard for M2M applications that is being increasingly deployed. The application note guides developers and manufactures of SIGFOX Devices to perform the required and recommended measurements with test solutions from Rohde & Schwarz. The note will help bring ultranarrowband IoT devices and applications using SIGFOX technology to the market as fast as possible and help ensure the desired quality and performance.

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Increase the IP connection security of your IoT device

With M2M communications for the Internet of Things becoming more widespread and many low cost devices being deployed that are all connected via the Internet, one of the major issues is that of security. Even low cost devices must have high levels of security so they don't become highjacked and used for DNS attacks, etc. Security is also naturally very important when the data being transmitted is more important. The term IP connection security originates from the IT world and describes the procedure used to secure the communications channels between two devices, typically by using authentication and encryption. Authentication and encryption are required for all communications channels to the Internet in order to secure the information exchanged. Find out more about security for the IOT. . . .

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Characterization of LoRa Devices

LoRa or Long Range is a form of low power low data rate communications aimed at M2M communications for the IoT. It is able to offer long distance coverage using low power as a result of the modulation scheme and receiver characteristics. However, before devices can be used in a LoRaWAN network, they must among other things meet country-specific wireless communications regulations. 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. It also describes how important receiver characteristics can be verified by metrological means. In this context, battery life in particular plays a key role in IoT applications. A further chapter describes how current consumption of LoRa wireless modules can be measured reliably.

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Bluetooth Low Energy (V5.0) RF-Test for Internet of Things Applications

One of the most important standards now being used with many IoT applications is Bluetooth and in particular Bluetooth Low Energy. Before a new product with Bluetooth functionality can be launched, the qualification process defined by the Bluetooth SIG must be successfully completed. To save time and money, performance tests need to be performed in the development stage. This application note describes how to use the R&S CMW platform to perform the measurements defined in Bluetooth test specification version 5.

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Battery life measurements in the connected car

Battery life is a major concern for any portable or mobile device. Automotive applications are now different. As complex applications are added to the connected car, it becomes increasingly important to understand how cellular and non-cellular wireless connections consume power. For example, modules such as those defined for eCall/ERA-Glonass are expected to continue transmitting after a crash for a defined period of time, and telematics units need to regularly attach to the cellular network and may even be required to download a large firmware update over a cellular connection when the car’s engine isn’t running. Find out more . . .

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Testing the IP connection security of telematics units

The security of any item on a vehicle is key to its overall security. On device on the vehicle that lets in a hacker is of huge concern and as a result security testing is very important. A considerable number of vehicles will be connected to the Internet using non-cellular technology such as WLAN or a cellular network such as LTE/LTE-A. Whatever route is provided for external connectivity, the security must be rigorously tested. Find out more . . .

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RF Testing on Automotive Infotainment Devices

Automotive infotainment has come a very long way in recent years. What used to be the car radio has evolved from adding a cassette player to state of the art entertainment on the move. Now infotainment is far more complicated enabling mobile phones to be connected, music devices, SatNav and many more items. The RF testing these can present a real challenge. Find out how to effectively test these systems . . .

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Automotive Radar Sensors - RF Signal Analysis and Inference Tests

Road safety is a global challenge at present and will be in the future. Automotive radar has become a keyword in this area and pushes again a step forward to increase driving comfort, crash prevention and even automated driving. To ensure that any radar systems perform to the required standard they must be tested thoroughly before they are used. Find out more . . . .

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USB power delivery compliance testing with Rohde & Schwarz digital oscilloscopes

Digital oscilloscopes are able to provide new levels of fault-finding functionality. They are able to provide much higher levels of insight into the operation of digital circuits which can prove invaluable in many instances. One of the key advantages of USB power delivery (USB PD) supported by USB Type-C™ connectors is the capability to transmit power up to 100 W. Using low speed signalling, the devices negotiate a USB PD profile. Suppliers of USB Type-C components and device vendors utilising the USB PD standard need to ensure interoperability in terms of protocol handshake and signal integrity. Raed more . . .

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Quick and efficient troubleshooting with the R&S®Scope Rider

Robust and portable oscilloscopes are very important for field service and many other applications. Signal faults and anomalies can cause electrical and electronic systems to fail and they may be located anywhere. Especially in the field, these errors can lead to system downtimes and produce high costs. Consequently, finding them quickly and efficiently as well as identifying their source are crucial. Find out how to achieve fast effective fault finding . . .

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Testing IoT designs with the R&S®RTO2000 - Focus EMI Debugging

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. Since developers are very familiar with using an oscilloscope for voltage and time measurements, they also want to use it to for all other necessary measurements. And now they can – with the R&S®RTO2000 multi-domain oscilloscope. Find out more . . .

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Comparison of jitter measurements in the time and frequency domain

Jitter on a signal is of major importance for systems transmitting data. It is recommended to use jitter measurement instruments for both the time and frequency domain in order to differentiate between fast and slow moving artifacts. Read more . . .

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5G Waveform Candidates

5G mobile communications is ow being standardised and development activities have also started. One of the key issues is that of the waveforms to be used. Find out all about the 5G candidate waveforms for transmitting data over 5G networks.

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Display Readability –resolution and viewing angle Mike Logan | AndersDX
Display Readability: resolution and viewing angle
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