Search results

This is my simple implementation of the ARRL Antenna Book design equations for the axial-mode helical antenna.

Simple implementation of the ARRL Antenna Book design equations for the axial-mode helical antenna.

Helical antennas invented by John Kraus give a circular polarized wave. They are one of the easiest to design. Find a tube with a circumference equal to one wavelength, and wrap wire in a helix spaced a quarter wavelengt

Calculating HF helical whip antenna for mobile or portable operation