This guide introduces the reader to the ionosphere, including its formation, complexities and its use for HF communications. It first provides a comprehensive background of the ionosphere and its variations, before addressing the structure of the ionosphere for HF radio propagation under both quiet and
disturbed conditions. Some of the problems faced by the HF communicator are then explained in terms of changes in the ionosphere caused by solar-terrestrial interactions. The guide also provides a review of available HF propagation prediction programs, using one of the best to illustrate some of the phenomena which make HF communications such a fascinating and challenging field. This is a very informative text for the serious HF radio operator, written by a scientist with over 20 years
experience in ionospheric research.
"It contains many good diagrams and models to explain all the various difficult concepts. The author ought to be congratulated: the book will definitely acquire a readership outside of the amateur radio community."
-- Trevor Hill, Taunton Radio Astronomy Observatory, England, Modern Astronomer, Issue 5, July 1997.