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Martin Rowe

Signal Hound claims first 40 GHz USB VNA

April 9, 2025 By Martin Rowe Leave a Comment

RF components such as connectors, cables, antennas, and PCB traces need characterizing so you know how they will perform. That’s where a vector network analyzer (VNA) can help. Signal Hound, well known for its USB spectrum analyzers, has introduced the VNA400, a 40 GHz VNA that connects to and gets power from its single USB-C […]

Filed Under: Analyzer, vector network analyzer, vector network analyzers Tagged With: signalhound

Modular system combines DMM with DAQ

March 27, 2025 By Martin Rowe Leave a Comment

DAQ3120

The DAQ3120 from B+K Precision lets you install up to three measurement modules to create a custom system for your bench. Most engineers have a digital multimeter (DMM) for basic measurements such as voltage, current, and resistance. Sometimes, however, you need the flexibility to add channels and log measurements without or without a computer. That’s […]

Filed Under: APEC 2025, Bench Test, data acquisition, data recorders, Events, Meters & Testers Tagged With: b&kprecision

APEC 2025 test equipment: power sources and loads

March 26, 2025 By Martin Rowe Leave a Comment

DAQ3120

Powering electronic devices requires the testing of power supply and charging circuits, battery management systems (BMSs), and battery cells. Many of these circuits require voltage, current, and power measurements, plus numerous others. Oscilloscopes and probes let you see the waveforms in power-delivery circuits, but the circuits themselves may need simulated batteries and simulated loads. That’s […]

Filed Under: data acquisition, Electronic loads, Featured, instrumentation power supplies, New Articles, Power supplies, Video Tagged With: ametekprogrammablepower, b&kprecision, chromaate, Hioki, ITECHElectronic, Picotest

APEC 2025 test equipment: oscilloscopes and probes

March 24, 2025 By Martin Rowe Leave a Comment

oscilloscope and probes in power electronics

Oscilloscopes and probes play a vital role for engineers designing and testing power electronics. Delivering electrical power to analog and digital circuits and systems is more than just DC measurements. That’s because nearly all power-converter circuits use switching techniques to maximize efficiency. Silicon carbide (SiC and gallium nitride (GaN) transistors, with their higher voltage and […]

Filed Under: Digital Oscilloscope, EMI/EMC/RFI, Featured, Meters & Testers, Power supplies, Video Tagged With: cleverscope, keysighttechnologies, rohdeschwarz, Tektronix, teledynelecroy, Yokogawa

Tryout: Uni-T UPO1202 200 MHz oscilloscope

January 17, 2025 By Martin Rowe 1 Comment

Uni-Trend UPO11202

You need not spend a ton of money to get a feature-packed oscilloscope, provided you don’t need high bandwidth. While the oscilloscope works well, the free software needs help. After seeing the Uni-Trend (Uni-T) UTG962E Function/Arbitrary Waveform Generator ($182), we at EE World bought one and, at the same time, ordered a UPO1202 200 MHz […]

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Filed Under: Digital Oscilloscope, digital phosphor oscilloscope, Digital Storage Oscilloscope, FAQ, Featured, oscilloscope measurements, Oscilloscopes, Video Tagged With: UNI-Trend

Engineers use AI/ML to improve test

December 3, 2024 By Martin Rowe Leave a Comment

AI/ML used to test circuits

Engineers can use AI/ML to reduce test development time, analyze test data from manufacturing, automate visual inspection and calibration, and identify counterfeit components. Here’s how some do it. Testing takes too much time; just ask any engineering or production manager. Shortening test-development time can reduce time to market. Shortening production test time lowers manufacturing costs. […]

Filed Under: FAQ, Featured, Machine Vision/Inspection, Meters & Testers, Test software programming, Video Tagged With: Advantest, flukecalibration, Synopsys, teradyne, testeract, Virinco

RF cables cover frequencies to 43.5 GHz for test applications

November 19, 2024 By Martin Rowe Leave a Comment

Cables available in three standard lengths with SMA, 2.92 mm, and 2.4 mm end connectors. Samtec’s LL043 Series Nitrowave microwave cable assemblies have performance is optimized from DC to 43.5 GHz with a maximum VSWR of 1.4:1. The 43.5 GHz bandwidth lets the cables operate at 5G mmWave frequencies as well as those used in […]

Filed Under: 5G, Communication Test, wireless test equipment Tagged With: samtec

Isolated current probes eliminate ground loops

November 15, 2024 By Martin Rowe Leave a Comment

Tektronix IsoVue Isolated current probe

IsoVu isolated current probes from Tektronix isolate oscilloscopes from circuits used for EVs, motors, and power converters. Trying to make shunt-based current measurements with a typical oscilloscope probe is essentially impossible. That’s because one side of the probe connects to ground through the instrument. Using an ungrounded power cord is anything but safe. Differential probes […]

Filed Under: oscilloscope measurements, Oscilloscopes, power sensing, scope probes and accessories Tagged With: Tektronix

Download our 2024 T&M Tech Toolbox

November 11, 2024 By Martin Rowe Leave a Comment

Keysight 14-bit oscilloscope

Everything needs testing and testing needs measurement. That’s why we assembled a collection of articles from Test & Measurement Tips into the 2024 T&M Tech Toolbox, a 56-page e-book in PDF format. We took some of the top articles from our recent archives to provide you with information that can help you with your job. […]

Filed Under: EMI/EMC/RFI, Featured, Meters & Testers, New Articles, Oscilloscopes

Tryout: Uni-T UTG962E Function/Arbitrary Waveform Generator

October 14, 2024 By Martin Rowe Leave a Comment

Waveform generator sinewave

This waveform generator is small enough to fit on any bench and packs many useful features so long as you operate it from the physical or virtual front panel. The software, however, needs work. Walking the exhibit floor at IMS 2024, I passed by the Uni-Trend (Uni-T) booth where the UTG962E Function/Arbitrary Waveform Generator caught […]

Filed Under: arbitrary waveform generators, Featured, Oscilloscopes, Video Tagged With: UNI-Trend

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