Radio communication plays an important role in commercial and industrial life which has led to a growing demand for engineers and technicians in this field. This book covers this important area as a whole rather than looking at specific isolated areas thus aiming to give the student and professional a complete view of the subject. Details of systems currently in use, including both established and recently introduced types are given, providing the reader with a firm grounding in techniques. Also, a large number of worked examples have been included to aid understanding and help with examination preparation, and there are exercises summarizing the content of each chapter aid revision. It is suitable for students of radio communications at BTEC Higher Certificate or Diploma level and first/second year undergraduates. It is also aimed at any higher level course that requires some knowledge of radio technology such as modulation or aerials. It should also be a useful reference for professional technicians wishing to update their knowledge.