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Plots is a Microsoft Excel spreadsheet program that is designed to extend the capabilities of the EZNEC Version 3 antenna modeling package written by Roy Lewallen, W7EL. EZPlots offers a convenient way to plot many of the data items that can be produced with an EZNEC Frequency Sweep.

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MultiNEC is an Excel application that can make multiple simulation runs of an antenna model while automatically changing one or more aspects of the model between runs. You can change the model in a variety of ways, choose from a variety of calculating engines, and view the results in a variety of formats.

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Transmission Line Details TLDetails


This utility program shows the impedance and SWR at both ends of a transmission line and the details of power loss in the line. It includes characteristics for over 40 built-in line types. You can modify these values to see how small changes affect the results or to specify custom lines. All program inputs may be changed directly or you can use spin buttons to make the changes.

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XLZIZL is an Excel application that analyzes the components of an antenna feed system, including transmission lines, stubs, baluns, and tuners. Calculations include impedance transforms, SWR and reflection coefficient, power loss, voltage and current standing waves, stress on tuner components, network attenuation (S21), and return loss (S11). Analysis results are available in worksheet format and in five different chart formats, including Smith charts.

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