People have asked how I go about sorting out systems - and find my answers very unsatisfactory. Well, I have come across a book which very nicely addresses some of the key areas where I find a lot of the issues arise - and gives a lot of suggestions of very, Gasp!!, technical gear that can be used to chase these things down. It's a very practical book, minimum high falutin', equations for equations sake guff - what I find especially endearing is that there are a lot of cheap and cheerful tricks and tips offered; these are what I would instinctively go for  ...

The book? https://www.amazon.com/Troubleshooting-Cookbook-Product-Designers-Electromagnetics/dp/1613530196