The guide attempts to provide sufficient understanding of the fundamentals, characteristics, and functions of antennas to enable an individual to develop requirements and discuss antennas with vendors, installers, repair shops, etc. It contains a minimum of equations and references to theory, and the information is generally restricted to the kind of antennas used by law enforcement agencies, specifically land mobile radio (LMR) and associated radio frequencies. The guide describes the function of the antenna system and the fundamentals of antennas and radio wave propagation. It presents the engineering, or functional, characteristics of antennas and describes their electrical, radiation, and physical characteristics. It describes use of antennas within a radio communications system, transmission lines and related components needed to connect an antenna to a transmitter or a receiver, the modes of radio wave propagation commonly used for LMR systems, and how an antenna pattern and propagation effects are used to achieve required geographical coverage. The guide also covers the practical aspects of developing and expressing requirements for an antenna, the installation, maintenance, and safety of antennas, and examples of available products and services. Notes, figures, table, resources, acronyms, references
Similar Publications
- Confirmation Bias and Other Systemic Causes of Wrongful Convictions: A Sentinel Events Perspective
- Evaluating a Multi-Disciplinary Response to Domestic Violence: The DVERT Program in Colorado Springs
- Coping Patterns over Time and the Association with Stress, Depression and Self-Efficacy Among Adolescents: Latent Transition Analysis