Mmana-gal Antenna Files ((link)) -

NEC2 files ( .nec ) can be imported but not saved back to .maa without losing some data.

Whether the antenna is in free space, over ideal ground, or over real-world soil (including dielectric constant and conductivity parameters). The Internal Structure of an .maa File

Most guides and "antenna libraries" shared online consist of files. Here is how to handle them: Opening Files File > Open (*.maa) or simply drag and drop the file into the MMANA-GAL window. Viewing Geometry : Go to the Geometry tab to see the wire coordinates. You can manually adjust the points here. The Library : MMANA-GAL comes with a built-in library located in the

MMANA-GAL antenna files are the foundational building blocks of digital antenna experimentation. By mastering how to read, modify, and optimize .maa files, you can simulate endless variations of dipoles, Yagis, and loops long before cutting a single strand of copper wire. mmana-gal antenna files

MMANA-GAL uses specific file formats to store antenna designs, calculation results, and plot data. Understanding these files is key to modeling, optimizing, and sharing your amateur radio antenna designs. Primary File Types The software primarily interacts with three extensions: .maa (Antenna Definition File)

The amateur radio community is built on sharing. If a famous op in Japan designs a high-performance 20m Yagi, they can simply email you the .maa file. You can then open it, adjust the wire thickness to match what you have in your junk box, and see how it performs at your specific height. Anatomy of a MMANA-GAL File

: Defines the feed point (e.g., center of a wire or beginning of a wire). Ground and Material NEC2 files (

Every file is divided into distinct sections that the software interprets to render a 3D model and calculate performance:

A graphical viewer that allows you to rotate and inspect the physical layout, current distribution (red lines), and source locations (red circles).

Identifies which wire and which segment receives the RF power. Here is how to handle them: Opening Files File > Open (*

If a wire has too few segments, the simulation will be inaccurate. If it has too many, it will be slow. Use the "Auto-segmentation" feature to stay in the "sweet spot."

An .maa file is a plain-text file that contains all the structural, environmental, and frequency data required by MMANA-GAL to simulate an antenna's performance. Because it is written in plain text, you can open, read, and edit these files using the software itself or any standard text editor like Notepad.

Find the antenna definition text (it will look like a table of coordinates).

Because MMANA-GAL is based on the MININEC core, it struggle slightly with accuracy if you join wires of radically different diameters at sharp angles. Keep wire radii consistent where possible.