Welcome to Cherry Clough Consultants

We are independent consultants who help designers, manufacturers, system integrators, installers, and users deal quickly and cost-effectively with real-life interference (EMI), or comply with the EU's EMC and Safety Directives and similar regulations worldwide. All applications, all industry sectors, all sizes/scales.

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

We also have well-proven guidelines for reducing Functional Safety or other risks that could be caused by EMI.

Most of our on-line effort is now going into our new website emcstandards.co.uk.
Why not visit to see what we are doing?
Keith’s new Blog: https://www.emcstandards.co.uk/blog
On-line training courses & books: 

Keith's new Linked In page: https://www.linkedin.com/in/keith-armstrong-449801172/ 

NEW:    Design for EMC - Systems and Installations
Learn how to avoid electromagnetic interactions that cause delays and increase costs
Date: July 3 + 4, 2019
Venue: Southampton, UK
Trainer: Keith Armstrong, of Cherry Clough Consultants Ltd, UK.

Learn how to avoid the electromagnetic interactions that cause delays and increase costs
Date: February 21 + 22, 2019
Venue: Novotel Hotel, Bruges (Brugge), Belgium

Trainer: Keith Armstrong, of Cherry Clough Consultants Ltd, UK.


Keith Armstrong's training courses now available for on-line purchase
Anyone who buys a course module will be automatically updated with new versions for free, for some number of years (we haven't decided how many yet). The updating versions will be complete, with change records so you don't have to scan right 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This way of learning good EMC design is better than buying textbooks (which are out of date for years) or attending annual training courses (where most of the material is the same as the year before, you can't simply attend the new or improved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, and you have to pay full price again).

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 IET’s Code of Practice on Electromagnetic Resilience
First published February 2017, the successor to the IET’s 2013 guide:
“Overview of techniques and measures related to EMC for Functional Safety”

Keith Armstrong's textbooks 
October 2018: this is the new site for ordering these books.

These are colour-printed 'on-demand'. 
They are not available new from Amazon or other resellers, who might mistakenly list them as being "out of print"