The new edition Foundation Licence Manual has landed in the WIA's store.
This 4th edition has been totally updated and now includes an introduction to AC theory, capacitors inductors and resonance, digital techniques and ADC/DAC's, decibells, and SDR radios.
Like previous editions, it is intended both as a study guide for obtaining a Foundation grade licence, and as a basic introduction to wireless technology.
I hope you like it. All comments, suggestions, and brickbats, greatfully received.