Welcome to Cherry Clough Consultants

Independent consultants who help designers, manufacturers, system integrators, installers, users deal quickly and cost-effectively with real-life interference (EMI), or compliance with EMC and Safety Directives and similar regulations worldwide. All applications, all industries, all sizes/scales.

Our SI, PI & EMC design techniques have been very well-proven for 26+ years to significantly reduce design and development time and cost; overall cost of manufacture; warranty costs, and financial risks, at all frequencies up to 24GHz (so far!) – whatever the relevant EMC standards: from the 'generics' up to the toughest, such as DEF STAN 59-411 Land Class A. 

And our well-proven guidelines for reducing the Functional Safety (and other) risks that could be caused by EMI have now been standardised by both the IET and the IEEE.

Most of our on-line effort is going into our new website emcstandards.co.uk, why not visit?
Keith’s Blog: https://www.emcstandards.co.uk/blog
On-line training courses & books: https://www.emcstandards.co.uk/online-training
Keith's Linked In page: https://www.linkedin.com/in/keith-armstrong-449801172/ 

...News — update 8th January 2024... 

Free public EMC seminars in Melbourne, Sydney, Brisbane and Adelaide,
February 5-9, 2024

Unlock the journey from Concept to Consumer: 
free one-day EMC Seminars on Product Design, Solutions, Testing, Certifications.
An EMC Perspective: Hear it from the Best in EMC


EMC courses and consultancy in Australia and New Zealand, Feb-March 2024
Public training courses in/near Melbourne, Sydney, Christchurch (NZ) in February,
& private training and consultancy anywhere in Australia and New Zealand in Feb and March:


EMC & Compliance International, 22+23 May 2024
This exhibition, conference, and training event will be held in the wonderful Dubai Duty Free Grandstand at Newbury Racecourse, on 22 & 23 May 2024.
The website is open now, to book exhibition stands and register for free visitor tickets. (Booking for training and conference sessions will be available soon.)
We are very pleased to welcome Ken Wyatt from the USA, who will teach us how to do bench-top EMC characterisations, troubleshooting, and fixing. 

Free EMC magazine: EMC AWARE
This new magazine makes free information on EMC, its technologies and test equipments; events, job adverts, etc. available to all. It also has the famous Banana Skins column, now up to number 930!

Keith has been joined by four Associates:
Andy Degraeve, of The Limit Line, Belgium
Dr Min Zhang, of Mach One Design, UK
Chris Nicholas, of Threysus, UK
Rod Macpherson, of Radiosmith, UK

They each bring new experience and skills to Cherry Clough Consultants Ltd
- check out their details using the left hand navigation bar

Video Webinars of Keith's training courses
are starting to be made available for purchase,

The archive of the popular EMC Journal has been rehosted 
All issues of the EMC Journal, and much else associated with that very successful UK EMC magazine, are archived, but problems with hosting have made them unavailable for a year or so. But now they are back on-line! Visit: www.theemcjournal.com or www.compliance-club.com 

Keith Armstrong's training coursenotes now available for on-line purchase
These updated PDFs include detailed change records so you don't have to read through them to find the updated material. 
This way of learning good EMC design is better than buying textbooks (which are out of date for years) or attending annual training courses (where most of the material is the same as the year before, you can't simply attend the new or improved material).

Visit emcstandards.co.uk 
The new site for easy and free access to the huge range of Keith Armstrong's published material, and a lot of additional stuff such as EMI Stories, EMC Design Checklists, Webinars, and more.
Register as a Member for even more premium material.
Sign up to the Twitter feed to be kept up-to-date with developments.

For what we used to call "EMC for Functional Safety": 
The current state of the art is: IEEE Std 1848-2020
"Techniques & Measures to Manage Functional Safety and Other Risks
With Regard to Electromagnetic Disturbances

ublished as a full IEEE Standard on 27 April 2021.
Purchase from: 

Keith Armstrong's textbooks 
From October 2018 this is the new site for ordering my books, and some others.
My books are colour-printed 'on-demand' and are not available new from Amazon or other resellers, who might 'mistakenly' list them as being out of print.