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Helps you design and model antennas on your Mac cocoaNEC is a Universal Binary Cocoa based Mac OS X application intended primarily for the modeling and design of antennas. What's New in This Release: · Turns on the Average Power Gain computation whenever a 3D Radiation Pattern is generated. · The Average Power Gain is the gain of the modeled antenna relative to an isotropic antenna, averaged over the 4π steradian sphere. For an ideal lossless antenna, this value is 1.0, and the gain number is often used as one of the criteria to check for convergence (usually called the Average Gain Test, or AGT in the literature) of the model (e.g., whether wires are cut into sufficient segments, corners of loops are well formed, etc). Any model whose average gain is within about 0.2 dB of unity gain can be considered a reasonable model. Please note that the inclusion of any lossy elements in the model will render the average gain number meaningless for converence testing purpose. When the 3D radiation plot is not disabled (see the notes for v0.61 below), the Average Gain is reported in the Summary tab of the Output Window, as shown in the figure below: · AGT - Additionally, averageGain is now available as a model variable (similar to the maxGain model variable) that can be referenced from inside of an NC control function. This allows you to change the number of wire segments, etc under programmed control instead of manually adjusting them for convergence. · The bundle name for cocoaNEC 2.0 has been changed from w7ay.cocoaNEC 2.0 to w7ay.cocoaNEC-2.0. This will change the name of the preference (plist) file for cocoaNEC. The only preference currently is the choice between using NEC-2 or NEC-4, so this is the only thing that you would need to change if you are defaulting cocoaNEC to using NEC-4. · The change is made so that cocoaNEC files (NC or spreadsheet models) can comply with the Snow Leopard sole scheme to connect a file with an application. Mac OS X 10.6 no longer uses the Resource Signature to distinguish between application.

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