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This paper describes the design procedure and engineering design tools used for Navy shipboard exterior RF communication system design. The approach is an iterative process by which candidate RF system designs can be analyzed to determine their relative desirability. Several computer codes have been developed for designing the exterior RF communication systems for Navy ships. The software design aids consist of two packages, one for antenna modeling (such as the NEC‐Method of Moments, NEC‐Basic Scattering, and NEC‐Reflector antenna codes), and another for communication systems analysis (such as DECAL, PECAL, LINCAL, and COSAM II). These codes have been well documented, validated, and applied successfully to design and integrate a number of shipboard exterior communication and topside antenna systems. However, there exist two shortcomings: (1) lack of a user friendly interface, and (2) lack of the ability to enforce design discipline and completeness. The Naval Ocean System Center recognized these shortcomings and has initiated the development of engineering workstations such as the Interactive Graphic Utility Automated for Numerical Electromagnetic Code (NEC) Analysis (IGUANA), the Numerical Electromagnetics Engineering Design System (NEEDS), and the Communication Engineering Design System (COEDS).

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