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, held at the newly (and finally) renovated “Platform” venue just outside of the train station. The views over Leeds city centre from our 10th floor suite where the event was being held were impressive. Paul Wealls of Mokanix had the first slot and gave […]

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 my EN 61000-4-6 conducted RF immunity test setup after the construction of some new test adaptors and acquisition of some new equipment when came across something that left me scratching my head. I figured it out eventually and updated my calibration procedure with a note […]

EMC Immunity Issues with RS-232 to USB Converters

These little converters are super handy to interface between your modern PC or laptop and the simpler, lower technology RS-232 serial port used by many pieces of equipment for control or debug purposes. However, like any commodity item there are design compromises, including EMC ones, that you need to be aware of. I was recently […]

IoT EMC Radiated Emissions Investigations

A customer requested some support with one of their products, an IoT bridge device that takes various sensors and provides telemetry back to a central server using a GSM module. Some of the radio pre-compliance spurious emissions testing had suggested there might be some issues at certain frequencies. After a couple of hours of radiated […]

Demystifying EMC 2018 – Silverstone

Rohde & Schwarz held this years’s instance of their excellent Demystifying EMC seminar at the Silverstone race track in the Midlands. The venue was right in the middle of the racecourse with a great view of the start/finish straight. It was good to see so many meaty sounding technical EMC presentations on offer and my […]

Q4/17 Updates – A good variety of work!

It feels like it has been a busy couple of months here at Unit 3 Compliance with a wide variety of projects coming through the door. Q1/18 is already shaping up to be busy with some really interesting products booked in for pre-compliance testing and some nice meaty problems to get our teeth into. I’m […]

An Important Balance

Here at Unit 3 Compliance, we recognise that the industry we primarily work in, electronics, has environmental consequences caused by the production, use and disposal of electronic products and systems. Many electronic components are highly complex and not easily recyclable. Energy usage of electronic products is massive. Waste electronics, if not disposed of correctly can […]

Use of an LCD back panel as an image plane to reduce radiated emissions

EMC Radiated Emissions Fault Finding Case Study

I’m really happy to have one of my blog articles featured on Interference Technology. Problem solving and fault finding EMC problems, especially radiated emissions, is one of my specialities and oddly enough is one of the facets of my job that I enjoy the most. After a successful exercise in helping a customer out with […]

log periodic christmas tree

Have an anechoic Christmas!

The office tree is up! Wishing all the customers, suppliers and friends of Unit 3 Compliance a very happy Christmas and a prosperous New Year. “Oh Christmas tree, oh Christmas tree Your branches grow, Log periodically…”

IoT Security Seminar Report

I attended a really interesting technical conference on IoT security yesterday at the Digital Exchange right here in Bradford (organised by Future Electronics). The main message I took away was that IoT security is achievable but requires a lot of thought up front at the design stage including selection of the primary hardware to enable […]