Spectral Analysis and Signal Synthesis: Method. manual for laboratory and practical classes on the courses "Radio Engineering Chains and Signals" by B. M. Dashenkova is an indispensable resource for students, graduate students and specialists in the field of radio engineering and signal processing . This manual not only serves as teaching material, but also represents a deep dive into the world of theory and practice of spectral analysis, which makes it relevant for all who seek to master this complex but fascinating area. The book examines key aspects of spectral analysis and signal synthesis, starting with the basics of the theory and ending with practical tasks that will help the reader to consolidate the knowledge gained. Dashenkov shares his many years of observations and experience, which gives the text special value. The manual includes both theoretical teaching and practical examples, making it ideal for students who want to not only teach, but also apply their knowledge in practice. The topics raised in the book cover a wide range of issues related to signal analysis and synthesis, including signal processing techniques, the use of various tools and technologies, and the application of mathematical models to solve real-world problems. In. M. Dashenkov emphasizes the importance of understanding the spectral characteristics of signals and their impact on the quality of information transmission. This book will be especially useful for those interested in radio, telecommunications and digital signal processing. Who can like this manual? First of all, it will be interesting for technical students studying radio engineering, electronics and related disciplines . The book will also be useful to graduate students and young professionals who seek to deepen their knowledge in the field of signal analysis and their synthesis. In addition, practicing engineers and researchers will find in it many useful tips and recommendations that will help them in their professional activities. The author's style is distinguished by clarity and accessibility, which makes it easy to assimilate even the most complex concepts. Dashenkov uses many illustrations and examples, which makes the material more clear and understandable. His previous work has also earned recognition in the scientific community, and this manual is no exception. In. M. Dashenkov is the author of several textbooks and scientific articles that have already become classics in the field of radio engineering. The book “Spectral Analysis and Signal Synthesis” is not just a textbook, but a real find for anyone who wants to understand the principles of radio engineering systems in a deeper way. It will help readers not only to master the theoretical foundations, but also to learn how to apply them in practice, which is a key aspect in the training of radio technicians. If you are looking for a high-quality and informative resource on spectral analysis, this guide will become your reliable assistant in study and work. In conclusion, it is worth noting that this book will be useful not only for students and specialists, but also for everyone who is interested in modern technologies in the field of radio communication and signal processing. It opens the door to the world of radio engineering, where every signal matters, and its analysis and synthesis is an art that can and should be studied.