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 … [Read More...] about Tryout: Uni-T UPO1202 200 MHz oscilloscope
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FROM THE EDITORS
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Aimee Kalnoskas
1 mm cable supports RF testing to 110 GHz -
Martin Rowe
Tryout: Uni-T UPO1202 200 MHz oscilloscope -
Rick Nelson
How to calculate and apply the inverse discrete Fourier transform: part 4 -
Emma Lutjen
Design World presents the 2024 LEAP Awards Winners: Test & Measurement -
Kenneth Wyatt
EMI from LED light fixture often exceeds regulatory limits
Today on Test & Measurement Tips
- How are NRZ and PAM different in an eye diagram?
- Electrostatic Discharge (ESD): impacts and solutions
- EMI from LED light fixture often exceeds regulatory limits
- What is bit jitter, and what are its component jitters?
- Review: PCBite circuit board holder and probe kit
- How to calculate and apply the inverse discrete Fourier transform: part 4
FAQs

How are NRZ and PAM different in an eye diagram?
Eye diagrams are important tools in telecommunications for analyzing the performance of digital signals, such as noise, distortion, and intersymbol interference. This FAQ compares the non-return-to-zero (NRZ) and pulse modulation (PAM) formats, which are common ways of reading an eye diagram. NRZ … [Read More...] about How are NRZ and PAM different in an eye diagram?

Electrostatic Discharge (ESD): impacts and solutions
Electrostatic discharge (ESD) disrupts the normal operation of electronic components and systems. It can cause leakages, shorts, gate oxide ruptures, junction and metallization burnouts, and deterioration of resistor-metal interfaces. To protect semiconductor devices from ESD, engineers integrate … [Read More...] about Electrostatic Discharge (ESD): impacts and solutions

EMI from LED light fixture often exceeds regulatory limits
Conducted emissions from LED light fixtures at frequencies from 1 MHz to 30 MHz can interfere with amateur radio and several broadcast bands. Radiated emissions reach into the lower cellular bands. After recently moving to northern Colorado and setting up my EMC lab and amateur radio station in … [Read More...] about EMI from LED light fixture often exceeds regulatory limits

What is bit jitter, and what are its component jitters?
Bit jitter can be a problem. A digital data stream is composed of a series of rapidly changing “ones” and “zeros.” Bit jitter can make it difficult to tell the difference and result in data errors. This article begins by defining jitter, then looks at its component jitters, compares bit jitter … [Read More...] about What is bit jitter, and what are its component jitters?

Review: PCBite circuit board holder and probe kit
The PCBite kit holds your circuit board in place while you probe it, reducing the risk of short circuits. Recently, I've had to test and characterize many small PC boards, including embedded processors, DC-DC converters, and other wireless-related products, for EMC issues. I've never really had … [Read More...] about Review: PCBite circuit board holder and probe kit

How to calculate and apply the inverse discrete Fourier transform: part 4
In part 3 of this series, we used the inverse fast Fourier transform (IFFT) to create 100-Hz time-domain waveforms of various amplitudes and phases. We can also use the IFFT to create waveforms containing multiple frequencies. If you look closely at Figure 1 in part 1 of this series, you’ll notice … [Read More...] about How to calculate and apply the inverse discrete Fourier transform: part 4

Tryout: Uni-T UPO1202 200 MHz oscilloscope
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, … [Read More...] about Tryout: Uni-T UPO1202 200 MHz oscilloscope

How to calculate and apply the inverse discrete Fourier transform: part 3
The inverse transform can create a time-domain waveform where no waveform has been before. In part 2 of this series, we used the discrete Fourier transform to convert a waveform from the time domain to the frequency domain, operated on the frequency-domain data, and used the inverse transform to … [Read More...] about How to calculate and apply the inverse discrete Fourier transform: part 3

What are the three levels of TEMPEST testing?
Telecommunications electronics materials protected from emanating spurious transmissions (TEMPEST) testing, also called emission security (EMSEC) by the National Security Agency (NSA), is an NSA specification and is defined in the NATO SDIP-27 standard. TEMPEST is designed to deny unauthorized … [Read More...] about What are the three levels of TEMPEST testing?

Review: Tekbox TBCG4 harmonic comb generator
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 … [Read More...] about Review: Tekbox TBCG4 harmonic comb generator
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What is the importance of resolution in an oscilloscope?
When looking at the oscilloscope feature of a multi-instrument device or when comparing two benchtop oscilloscopes, the first specifications that we look at are the bandwidth and sample rate. While these are incredibly important specs, often most design work is done well within the limits of most products and the more critical specification to consider is resolution. Did you know that while most […]