All-Copper J-Pole Antenna Construction for 2 Meters
Build an inexpensive, corrosion-resistant 2-meter J-Pole using common copper plumbing parts.
Description
The All-Copper J-Pole Antenna Construction for 2 Meters document outlines a specific build methodology for a VHF base station antenna. It addresses common issues like dissimilar metal corrosion and feed line degradation often encountered with aluminum J-Pole designs, proposing an all-copper and brass solution with soldered connections for enhanced durability and electrical performance.
This resource provides a comprehensive parts list in Table 1, detailing precise copper tubing lengths and other necessary hardware components. The design emphasizes DC grounding, which eliminates the need for insulating materials and simplifies installation, contributing to a robust and weather-resistant structure.
Michael P. Hood, KD8JB, details an assembly process estimated to take approximately one hour, with total material costs projected under $15. The antenna's construction focuses on rigid copper tubing and fittings, ensuring long-term integrity for 144 MHz operation.