4NEC2 (Antenna Visualizer)

4NEC2 (Antenna Visualizer)

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4NEC2 is a Windows-based antenna modeling and visualization application that provides a graphical front-end for the NEC-2 electromagnetic engine. It allows users to build antenna geometries, run NEC-2 simulations, view 2D/3D radiation patterns, Smith charts, and perform parameter sweeps and optimizations.

The tool is widely used by amateur radio operators, antenna designers, and RF hobbyists for analyzing antenna performance, impedance, gain, and near/far-field characteristics. It supports impo...

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