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

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

Useful Test Adapters for EMC Testing and Electronics Development

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

Simple RF Current Transformer for EMC / EMI Investigation

This post contains some background info related to the video…

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

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

RS-232 to USB Converters - EMC Problems Part Two

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

Busy, and a Birthday

It has been a very busy few months at Unit 3 Compliance; it feels…
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…
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,…
conducted rf immunity calibration impedance and measurement voltages

When is a Test Level Not a Test Level?

Answer: When you don't read the standard properly! I was verifying…

EMC Immunity Issues with RS-232 to USB Converters

These little converters are super handy to interface between…