: Instead of naming a file yagi.maa , use a descriptive format like 3ele_Yagi_20m_14150MHz_Aluminum.maa .
Among the free tools available, stands out as one of the most powerful, lightweight, and accessible Method of Moments (MoM) simulators. At the heart of this software are antenna files—specially formatted documents that contain the DNA of your antenna designs.
This is a comprehensive guide to understanding, creating, editing, and using antenna files in .
Go to the tab to set your ground type and material (e.g., copper, aluminum). File > Save As to generate your .maa file. Method B: Scripting and Text Editing mmana-gal antenna files
Before the geometry is defined, the file specifies the global parameters for the simulation: The target design frequency in Megahertz (MHz).
Many downloaded .maa files use standard metric wire radiuses (e.g., 1mm or 2mm). If you are building the antenna using American Wire Gauge (AWG) copper wire, you must update the radius column in the tab. Failing to adjust this will cause slight shifts in resonant frequency and SWR in your real-world build. Moving from Free Space to Real Ground
This blog post introduces , a free and powerful antenna simulation tool for radio enthusiasts. It covers the basics of using the software and how to manage its specific .maa file format. : Instead of naming a file yagi
An MMANA-GAL file typically stores four core categories of data:
: Identifies the "feed point" where power is applied, often labeled as a "pulse" in the software.
Many amateur radio clubs and independent RF engineers host collections of optimized .maa files. Popular community hubs include personal HAM radio blogs, GitHub repositories, and Yahoo/Groups replacements like Groups.io dedicated to antenna modeling. How to Create and Edit Antenna Files This is a comprehensive guide to understanding, creating,
If you open an .maa file in a text editor like Notepad, you will find several distinct sections: The Header and Title
The feeding point of the antenna, including voltage and location.