Find the antenna definition text (it will look like a table of coordinates).
Websites like CQHAM, Funkamateur, and various personal ham radio blogs offer downloadable .maa packages for specialized builds like Moxon rectangles, SteppIR clones, and multi-band OCF dipoles.
Select which variables the software is allowed to change (e.g., element lengths, element spacing, or height above ground).
Defines whether the antenna is in free space, over perfect ground, or over real ground (using specific dielectric constants and conductivity). 3. The Geometry Table (Wires) mmana-gal antenna files
Ensure you have enough segments per wire (the program usually alerts you) to maintain accuracy.
Title of the antenna project (e.g., "40m Inverted V").
Go to the table at the bottom of the Geometry tab. Type w1c in the "Pulse" column. This tells the software to place the source exactly in the center of Wire 1. Step 4: Calculate and Save Find the antenna definition text (it will look
If you find a .maa or .gal file today — treasure it. It represents a simpler, more open era of antenna design.
The outlived the software. Because it’s plain text and maps directly to NEC-2 cards, you can:
Here is what a typical MMANA-GAL antenna file looks like under the hood: Defines whether the antenna is in free space,
Located at the very top, this contains the name of the antenna and any notes the creator left behind (e.g., "40m Dipole optimized for CW portion"). The Geometry Section (Wires)
This is the skeletal framework of your antenna. MMANA-GAL defines antennas as a collection of straight wires. Each wire is assigned: A unique wire number.
An antenna file is just a chunk of metal until you feed it.