The Tekbox TBCG4 harmonic comb generator produces a wide range of known frequencies for EMC immunity testing and routine checking of EMC chambers. I’ve used harmonic comb generators for decades in various applications, including antenna measurements, cable resonance measurements, and shielding-effectiveness testing. I also find them useful for checking the daily consistency of test chambers […]
Oscilloscopes
How to calculate and apply an inverse FFT: part 1
The inverse Fourier transform (inverse FFT or iFFT) reverses the operation of the Fourier transform and derives a time-domain representation from a frequency-domain dataset. In early 2024, EE World published a series on the Fourier transform, which can convert a time-domain signal to the frequency domain (Figure 1, red arrow). The process is reversible (Figure […]
Isolated current probes eliminate ground loops
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 […]
RF-isolated current probe achieves 140 dB CMRR at DC
Tektronix has released two new power measurement devices: the TICP Series IsoVu isolated current probes and the EA-PSB 20000 Triple series power supply. The TICP Series probes utilize RF isolation technology for current measurements across voltage systems. The probes achieve 140 dB common-mode rejection ratio (CMRR) at DC and up to 90 dB at 1 […]
Download our 2024 T&M Tech Toolbox
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. […]
Picoscope 7.1.39 enhances USB-based oscilloscope line
Pico Technology has released PicoScope 7.1.39 – the latest stable version of the software. The software adds features previously deployed in Early Access versions of the software, plus UX improvements, bug fixes and operating system compatibility updates. Additions in this version of the software include: Annotations for placing in-graph notes, along with arrows to highlight […]
Tryout: Uni-T UTG962E Function/Arbitrary Waveform Generator
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 […]
USB oscilloscope adds 16 logic inputs
Pico Technology is excited to announce the launch of the MSO (Mixed-Signal Oscilloscope) versions of the highly regarded PicoScope 3000E Series. The latest additions combine cutting-edge technology with user-friendly design to meet the diverse needs of engineers, technicians, and researchers worldwide. These new MSO models offer the same powerful features as the existing 3000E series, […]
Flea market vintage test equipment, September 2024
The monthly “Flea at MIT” featured an abundance of test equipment. We even bought some.
14-bit oscilloscope delivers low noise, fast updates
Keysight’s InfiniiVision HD3 series oscilloscopes let you see signals with 4x the resolution of 12-bit instruments.
