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Test and Measurement Channel

Test and measurement related articles

ARTICLES

Keysight's New PXIe Chassis Help Engineers Make Best Choices for PXI Applications

Keysight Technologies Inc.  announced three new PXIe chassis with different sizes and performance characteristics. The new chassis include 1) Keysight’s industry-leading 10-slot Gen 3 chassis, designed for high-performance, benchtop and R&D applications; 2) Keysight’s cost-effective 5-slot Gen 1 chassis; and 3) Keysight’s redesigned 18-slot Gen 2 chassis, with improved power supply and new features which improve system integration.


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ART-Fi Announces Precision 300 GHz Compact Range with Roll-Edged Reflector

The time of 5G is coming soon. Characterization of OTA performance is going to be a challenge as wireless communications move towards higher frequency ranges. ART-Fi decided to expand their precision engineering to tackle that challenge, together with their partner WavePro, by releasing a cutting-edge compact range that can be used to characterize the world’s latest technologies, up to 300 GHz.


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Modular PXIe Digitizers for Wideband Applications from Spectrum Instrumentation

Spectrum Instrumentation has expanded its line of PXIe-based (PXI Express) high-speed digitizers with nine new cards. The new M4x.22xx series includes modules that offer one, two or four fully synchronous channels. Each channel is equipped with its own analog-to-digital converter (ADC), with real-time signal sampling at rates from 1.25 GS/s to 5 GS/s, and scope-like signal conditioning circuitry that allows programming of parameters such as input gain, signal offset and coupling.


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Anritsu Co. Introduces PIM Hunter Test Probe

Anritsu Co. expands its field test portfolio with the introduction of PIM Hunter,™ a passive intermodulation test probe that helps field technicians more quickly discover the precise location of external PIM sources at cell sites. Designed for use with Anritsu’s PIM Master,™ Spectrum Master™ and BTS Master™ handheld analyzers, the PIM Hunter test probe enables field professionals to use traditional interference hunting techniques to accurately locate external PIM sources for optimum wireless network performance.


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Microsemi Launches Cost-Effective, High Performance Plastic Packaged PIN Diode Control Devices

Microsemi Corp. announced the availability of a series of new plastic packaged PIN diode control products, leveraging the company's 50-year history supplying PIN diode products for challenging RF power, small-signal switching and receiver power limiting functions. The new devices are cost competitive and provide higher RF functionality, helping defense, aerospace and medical customers reduce BOM costs with low risk and little sacrifice to performance.


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New Probe for Rohde & Schwarz Oscilloscopes Measures Voltages in the Millivolt Range

The new R&S RT-ZP1X passive 1:1 probe from Rohde & Schwarz broadens the application range of its R&S RTO and R&S RTE series oscilloscopes. Both the probe and the oscilloscopes' front-end are extremely low noise, making this combination ideal for measuring the smallest of signals down to 1 mV/div, e.g., for power integrity measurements on integrated circuits and components.


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Anritsu Introduces Industry’s First 4x4 MIMO 256 QAM Measurement Software

Anritsu Co. introduced new software for its Radio Communications Analyzer MT8821C that creates the industry’s first test solution that supports evaluation of 4x4 MIMO 256 QAM RF Rx performance for all DL 3CC CA band combinations with no restrictions on frequency and signal bandwidth combinations. The new software provides wireless chipset and UE manufacturers, as well as mobile operators with a solution to conduct efficient, highly accurate carrier acceptance tests to ensure performance.


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DOCUMENTS AND FILES

Optimizing IP3 and ACPR Measurements

Learn techniques to improve your instrument’s ability to measure intermodulation distortion, third-order intercept, and adjacent channel power ratio.

Achieving Accurate RF and Microwave Power Measurements for Satellite Thermal Vacuum Test

This application note compares the commonly-implemented power measurement test setups for TVAC with a new test method that uses TVAC-qualified LAN power sensors. The paper explains how this new test method provides a simplified test setup, and more accurate and reliable microwave power measurements for TVAC testing of satellite equipment.

Noise Figure Measurements: Theory and Applications

Learn about the fundamentals of noise and noise figure measurements, including the Y-factor technique and methods to calculate measurement uncertainty.

Overcoming High-speed Interconnect Challenges

Cloud computing, smart phones, and LTE services are causing a large increase in network traffic. Instantaneous traffic rates at internet data centers have reached 1 Tbit/s. Supporting this increased traffic, speed of IT equipment used in high-end services in data centers must be increased. This white paper discusses challenges introduced at these higher data rates and how Vector Network Analyzers can help meet these.

Calculating VNA Measurement Accuracy

Vector Network Analyzers (VNA) are your primary resource when analyzing and characterizing systems and components for RF and Microwave measurements. They are regarded as accurate measuring instruments, however, quantifying the accuracy performance of a VNA in a specific application can be challenging. VNA specifications are a starting point; but, they are based upon very specific calibration and measurement conditions, which are not applicable for many applications.

Synchronization for Next Generation Networks - The PTP Telecom Profile

This paper is designed to help network engineers, network planners, and network operations understand how to deploy Precision Time Protocol (PTP, or IEEE 1588). PTP is a next generation, packetbased timing protocol targeted for use in asynchronous network infrastructures based on packet transport technologies.

Advanced VNA Cable Measurements

This field brief will discuss phase-matching cables, S-parameter definitions as they apply to cable characterization and other cable parameters such as Phase Shift and Group Delay. Advanced Time-Domain measurements will also be presented as enhancements to the well-known Distance-to-Fault (DTF) techniques. In addition, diagnostic tools like the Smith Chart will be briefly described.

Oscilloscope Fundamentals

The oscilloscope is arguably one of the most useful tools ever created for use by electronic engineers. In the more than five decades since the modern analog oscilloscope was created, hundreds of useful documents and thousands of articles have been written about what it is, how it works, how to use it, and application-specific examples of the oscilloscope in action. It is the purpose of this primer to instead describe digital oscilloscopes, which have for practical purposes replaced their analog predecessors in the vast majority of applications.

Accurate System Level Design with Low Noise Amplifier's BlackBox Models

To amplify weak signals received by the antenna in communication systems, low noise amplifiers (LNAs) are deployed. LNAs are used in various applications such as GPS receivers, wireless data systems, satellite communications, cellular handsets, radio systems, etc.

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