V2 pocket EMC debug probe PCB - near field probe set - board front

Schaffner NSG 2070 Programming Manual

This workhorse has been a part of our lab for years. Used for…

EMC radiated emissions problems from Riverdi LCD panel

Lawrence has been working on an Industrial (emissions Class A)…

Pocket Near Field Probe Boards (R4)

Hello and welcome to Unit 3 Compliance. We test your products…

Do I need to EMC test a pre-approved power supply? - EMC Explained

One of the most common questions we get asked when we send an…
sketch showing dc power distributed around a building on busbars to a vriety of loads, and with a battery bank. There is an AC/DC charger for the batteries.

What is a DC Power Port? – EMC Explained

Everyone knows what a DC power port is, right? It’s this… It’s…

1% For The Planet Donations 2022

Every year we donate 1 percent of our turnover (sales) to environmental…

Translating Product Documentation into Another Language

From one of our customers We have a question as to whether there…

Safety voltages: ELV, SELV, PELV, and FELV

As an ex rock climber, I always liken the system of safety voltages…

2.4GHz Wi-Fi - Effect of Settings on Second Harmonic at 4.8GHz

When using a 2.4GHz radio inside a product, one of the most common…
failure of a series power switch under single fault conditions

Material Flammability Ratings - Comparative Reference Table

Flammability ratings of different materials can be a bit confusing.…
meanwell power supply comparative radiated emissions

Meanwell Power Supply Radiated Emissions Investigation

We've been doing pre-compliance scans on a customer's product…

MPS Presentation on DC/DC Converter Myths

I wanted to share this excellent and useful presentation by Francesc…

Spring or Star Washers for Earthing Stud?

Introduction This article started with a simple question: what…
wilson e robot reads Testing Times (and so should you)

"Testing Times" Email Newsletter

You know those promotional emails that don’t ever say anything…
comparison of weee crossed out bin logos with and without bar (simple graphic)

WEEE Symbol With Or Without Bar?

To Bar, or not to Bar, that is the question: Whether 'tis nobler…
Happy birthday to us

Unit 3 Compliance is 5 Years Old!

Five years ago I checked in my badge at SmarDTV, turning…
V2 pocket EMC debug probe PCB - near field probe set - board front

I Will Happily Spend Your Equipment Budget...

    Customers sometimes ask me "what EMC pre-compliance…

One Ferrite Is Not Enough

This would be a great Bond film title... "So Blofeld, do you…

Graphical Guide to EMC: Near Field Probing (free eBook)

  You can download our free eBook on Near Field Probing…

1% For The Planet Donations FY 2020

As a member of One Percent for the Planet, we donate 1% of our…
self interference demo USB3 and 2.4GHz

2.4GHz Intra-System (or Self/Platform) Interference Demonstration

In this blog we are going to take a short look at noise and interference…
RCWL-0516 - board image from github.com-jdesbonnet

Compliance Assessment of a RWCL-0516 Doppler Radar Motion Detector

I've been helping a customer out with some EMC pre-compliance…
conductive contamination underneath surface mount isolated power supply causing line to earth surge failure(marked up photo)

Surge Test Failure Due to PCB Manufacturing Process

We recently had a piece of customer equipment fail the IEC 61000-4-5…
V2 pocket EMC debug probe PCB - near field probe set - board front