Electrical test and measurement equipment provider Megger has released its VAX020 high-voltage amplifier for the reliable assessment of insulation conditions using dynamic frequency response (DFR) techniques, even in extreme high-interference environments such as HVDC substations. In addition, the amplifier also eliminates the difficulties associated with testing … [Read more...]
Digital Predistortion Option Shortens Test Time and Simplifies Amplifier Evaluation
Rohde & Schwarz has announced the new R&S SMW-K541 digital predistortion option for its R&S SMW200A high-end vector signal generator. Predistortion can extend the operating range of amplifiers, says the company, but determining the right correction factors has always been a time-consuming process. The new R&S SMW-K541 digital predistortion option allows users … [Read more...]
LCL Filters for Recuperative Frequency Converter Systems
TDK Corporation has released a new series of EPCOS LCL filters for recuperative frequency converter systems. Consisting of a power choke, a capacitor bank with damping resistors and a robust choke, these new high-performance filters satisfy IEC / TS 62578 recommendations for EMI emissions between 9 kHz and 150 kHz. In combination with in combination with a recuperative … [Read more...]
Flexible Ferrites Offer EMI Shielding and Noise Suppression
Fair-Rite Products Corporation has announced the availability of new flexible ferrites. Available in four thicknesses and six material grades, the RoHS-compliant flexible sheets block noise at lower frequencies and absorb it at higher frequencies. The NiZn ferrite is placed between a 0.01 mm layer of PET film and 0.02 mm adhesive tape. Each sheet can be cut to size enabling it … [Read more...]
Medium and High Power RF Loads Protect Equipment from Power Surges
RF and microwave products manufacturer Pasternack Enterprises, Inc. has released new lines of medium and high power RF loads. These new RF loads, also known as RF terminations, are often used in aerospace, military/defense and test and measurement applications in order to protect radios and amplifiers under test from excess power in the system. A total of 24 new RF loads are … [Read more...]
CISPR 16-4-2:2011+A1:2014: Specification for Radio Disturbance and Immunity Measuring Apparatus and Methods – Part 4-2: Uncertainties, Statistics and Limit Modeling – Measurement Instrumentation Uncertainty
From the International Electrotechnical Commission webstore: "CISPR 16-4-2:2011+A1:2014 is a basic EMC publication. It specifies the method of applying Measurement Instrumentation Uncertainty (MIU) when determining compliance with CISPR disturbance limits. The material is also relevant to any EMC test when interpretation of the results and conclusions reached will be impacted … [Read more...]
Near-Field Probes for EMC Analysis of Electronics Modules, Components and IC Pins
Langer EMV-Technik GmbH has released new SX near-field probes with a frequency range up to 10 GHz enable EMC analysis of interference emitted by electronic boards, components and IC pins with high internal frequencies. High clock rates of 2 GHz, says the company, may result in fifth order harmonics of up to 10 GHz. These harmonics are coupled out by RF sources on the board … [Read more...]
The Linearization of EMC Amplifiers Continued & Introduction to Elephant in the Test Room #2
Read other posts in the "Elephant in the Test Room" series here.As promised in the last post, here is the start of the next elephant! Elephant #2 - Disharmony in Harmonic LimitsThe Room: RF immunity testingThe Elephant: The curbing of the contribution made by harmonics to a calibrated test-field varies wildly from standard to standard, and within standardsThe Culprit: Harmonic … [Read more...]
Network Analyzer for Tests RF Passive Components and Dielectric Materials
Agilent Technologies has announced the availability of the E5063A ENA Series network analyzer offering optimized performance and functionality for testing simple RF passive components, such as handset/BTS antennas, RF cables and filters. It can also be used in R&D for evaluation of RF passive devices and dielectric materials. The Agilent E5063A provides excellent RF … [Read more...]
Dutch Cable Companies Blame 4G for TV Interference
Cable companies in the Netherlands are claiming 4G wireless networks may be affecting their television broadcast signals. Certain frequencies used by the fourth generation mobile network technology are also employed by television broadcasters to deliver content over cable, the Netherlands Broadcasting Foundation (NOS) said this week. There have been complaints in some cities … [Read more...]
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