OCF Masters Articles

  • A Suspended Quarter Wave 40 Meter Wire Vertical Monopole

    The antenna described here is now in its second incarnation. The first version, thrown together to try it out, finally needed to be replaced after being up for nearly 20 years. This antenna has several unusual characteristics. First, it is a full quarter wave wire vertical. Second, the bottom and radials are 10 feet off the ground, thereby minimizing ground losses and making it a very efficient radiator. Third, the design is a bit unconventional as it has only two radials. Why? Well, you really only need two radials on any vertical to provide a balanced counterpoise and two quarter wave 40 meter radials and easier to fit into a small yard.