Home Brew Mobile 6M Halo
Building a horizontally polarized 6-meter halo for mobile operation, inspired by QST
Description
For operators seeking to improve their 6-meter mobile operations, W3DHJ presents his Jones version of the lawn chair 6M halo antenna, a horizontally polarized design suitable for vehicular use. The project details the thought process, material selection, and construction techniques, including the gamma match for impedance transformation. W3DHJ recounts his journey from using a suboptimal 2-meter whip on 6 meters to designing a dedicated antenna for his new IC-706 MKII, aiming for efficient radiation while mobile.
The resource outlines the sequential build process, starting with project beginnings and covering mast fabrication, initial halo construction, gamma match implementation, and final tuning. W3DHJ shares his experiences and even mistakes, providing practical insights for fellow homebrewers. The design is specifically engineered to withstand mobile speeds up to 85 MPH, offering a robust solution for enhancing 6M DXing and local contacts from a vehicle.