LVD Voltage Limits are RMS + Thoughts on Marginal Voltages

The LVD a.c. voltage limits are defined in terms of rms. From…
Read more
a roll of Wurth Elektronik copper tape - the scoundrels last resort?

So You Want To Be An EMC Engineer?

  "Abandon hope all ye who enter here" - Sign above…
Read more

Compromise EFT Test Setup

When the customer supplied cable isn't long enough to fit inside…
Read more
By James Heilman, MD - Own work, CC BY-SA 4.0, https://commons.wikimedia.org/w/index.php?curid=34056919

Ventilator Projects and EMC Testing (EN 60601-1-2:2014)

Summary If you haven't already, check out part 1 of this…
Read more
By James Heilman, MD - Own work, CC BY-SA 4.0, https://commons.wikimedia.org/w/index.php?curid=34056919

Ventilator Projects and EMC Regulations (UK)

SUMMARY: 1. CE marking probably won't be necessary for UK…
Read more

Rohde & Schwarz "Demystifying EMC" 2020 @ Silverstone, UK

It's that time of year again when one of the things I look forward…
Read more
soldering iron bit from rs

Xytronic Soldering Iron Tips in the UK

Useful Tip Thursday: I have a couple of Xytronic soldering…
Read more

Networking Equipment - EMC Radiated Emissions Problem Solving

I had an email from a customer that I'm working on some design…
Read more
2018 1pftp donations

1% For The Planet Donations FY2018

As a member of 1% For The Planet, Unit 3 Compliance donates 1%…
Read more

When ESD Protection Gets Bypassed

ESD protection is essential to control the Electro-Static Discharge…
Read more
James Pawson presenting at R&S EMC 2019

Rohde & Schwarz Demysifying EMC 2019

A fantastic day at the Rohde and Schwarz Demystifying EMC 2019…
Read more
unit 3 compliance pocket debug probe

Pocket EMC Debug Probe

Hello 🙂 If you are reading this then hopefully you are a…
Read more
james pawson emc speaking at iot leeds

TWITL - Vibration Testing Automotive ECU

This Week In The Lab: This fuel injector controller has to withstand…
Read more

TWITL - Shield Prototyping for Sensitive Detectors

This Week In The Lab: prototyping a shielding can for some sensitive…
Read more
stainless steel camera system

TWITL - Underwater Camera System Industrial EMC Testing

This Week In The Lab: a nicely engineered underwater camera…
Read more
ram cage being removed from a 2018 mac mini

Apple Multi-Purpose EMC/EMI Shielding

I've always been impressed with Apple's approach to reducing…
Read more

Off The Shelf and Non-Compliant Power Supplies (from Amazon)

A customer had purchased some power supplies from Amazon UK to…
Read more

Useful Test Adapters for EMC Testing and Electronics Development

Working in an EMC test lab means I get to see all kinds of equipment.…
Read more

Simple RF Current Transformer for EMC / EMI Investigation

This post contains some background info related to the video…
Read more

LED Lights, the "Bulb Ban" and EMC / Radio Interference

I've just published a new article on LinkedIn titled "LED Lights,…
Read more
radiated emissions plot

RS-232 to USB Converters - EMC Problems Part Two

A while ago, I wrote about EMC immunity problems with USB to…
Read more

Busy, and a Birthday

It has been a very busy few months at Unit 3 Compliance; it feels…
Read more
crude differential mode surge spice circuit

Surge Testing, MOV Position and Fuse Current

I've been working on a power supply product for a customer with…
Read more
james pawson emc speaking at iot leeds

"EMC for IoT" Presentation at the IoT Leeds Meetup

I had the pleasure of speaking at the local IoT Leeds meetup,…
Read more