Ensure your segment lengths are always significantly larger than the wire diameter. Check the Segmentation settings in the geometry tab. Disconnected Wires
If two wires are meant to touch (like the radial of a vertical antenna connecting to the main radiator) but their coordinates are off by even a millimeter, MMANA-GAL will treat them as open circuits.
Mmana-gal_Antennas/ ├── HF_Bands/ │ ├── 160m_80m/ │ ├── 40m_20m/ │ └── 15m_10m/ ├── VHF_UHF/ │ ├── 6m_2m/ │ ├── 70cm_23cm/ │ └── LFA_Yagis/ ├── Portable/ │ ├── Magnetic_Loops/ │ └── End_Fed_Half_Wave/ ├── Receiving/ │ └── Beverage_Flags/ └── Optimized_With_GAL/ └── (Files modified by genetic algorithm) mmana-gal antenna files
Bundled inside the basic and pro software downloads are hundreds of models ranging from simple stealth apartment antennas to massive multi-band directional arrays.
In the source table, define where the power enters. For a center-fed dipole, choose the middle segment of your wire. Ensure your segment lengths are always significantly larger
Arrays optimized for 2-meter, 70-centimeter, and satellite communications. 2. Online Amateur Radio Repositories
Sites like QRZ.com, eHam.net, and specialized Yahoo/Groups.io forums for antenna modeling frequently feature .maa file attachments in design discussions. How to Import, Edit, and Run an .maa File How to Import
A typical .maa file consists of three main sections:
: A public repository containing a collection of antenna simulation files for both MMANA-GAL and 4NEC2.