Hf Antennas For All Locations Moxon Pdf Hot

The magic of the Moxon antenna relies entirely on its geometry. The antenna is divided into five critical dimensions, usually labeled as A, B, C, D, and E: Description Impact on Performance Total width of the rectangle Determines the fundamental resonant frequency. B Length of the driven element sides Balances the input impedance toward 50 ohms. C The critical tip-to-tip gap distance Controls the depth of the rear null (F/B ratio). D Length of the reflector sides Optimizes forward gain and bandwidth. E Total depth of the antenna Dictates the overall turning radius.

The preferred (wire with fiberglass poles, or rigid aluminum tubing)

For automated calculations, operators use dedicated NEC (Numerical Electromagnetics Code) software or specialized design spreadsheets. These tools convert target frequencies and wire diameters into exact millimeter specifications to prevent detuning from nearby objects. Construction Steps and Practical Tips

for a particular HF band (e.g., 20m, 40m).