: Hit the Calculate tab and press Start . The software will instantly give you the SWR and impedance for your chosen frequency.

Here is a breakdown of where to find full-featured MMANA-GAL antenna files, what they include, and how to use them effectively.

The geometry lines are unforgiving: X1 Y1 Z1 X2 Y2 Z2. Confusing Y and Z will turn a horizontal dipole into a random sloper.

MMANA-GAL is a widely used freeware antenna modeling tool. Its native file format (.maa/.maa? or saved project files) and exported formats enable sharing, reuse, and systematic antenna development. This column summarizes what matters when working with MMANA-GAL files, practical workflows, common pitfalls, and quick examples to help hams and RF engineers get reliable results fast.