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Query: loading coils
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Portable, and shortened with loading coils rotatable dipoles for 6 meters, 20 meters and multibands. -
This page describes the loading coil (inductor) that W8WWV built for my center-loaded 160 meter band (1.83 MHz) vertical antenna. -
This page explains how to construct high-Q inductor coils. -
An inverted V antenna for 40-80 with loading coils. This antenna is a full size on 40 and a shortened 80 by KG0ZZ. -
A 40/80 meters dipole made with two loading coils based on a project by IK1ZOY -
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Build an effective dipole antenna that needs much less space by adding two loading coils. This online calculator tells you how. -
A multi-band portable vertical antenna can be built with relatively ordinary components obtained from the local hardware store, including replaceable loading coils -
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While intended mainly for antenna loading coils, this article also applies to other resonant systems, such as amplifier tank circuits. -
About experiments and measurements on loading coils using net standing wave current -
A small antenna for 50 MHz made with copper cable loading coils -
The "DIY Telescopic-V Antenna £35" project showcases the creation of a budget-friendly, portable telescopic V-shaped antenna inspired by commercial designs. Using eBay-sourced telescopic whips and custom mounting solutions, the author documents their process, testing, and adaptations. Despite challenges like weather and missing tools, the antenna performed well across multiple bands, enabling successful QSOs. Future improvements include exploring loading coils and testing in better locations. The compact design offers versatility for amateur radio enthusiasts seeking an affordable and practical solution. -
Learn how to build the PAC-12 Antenna, a multi-band portable vertical designed by long-time antenna aficionado James Bennett, KA5DVS. This award-winning antenna is easy to homebrew using common components from a hardware store, with replaceable loading coils. Perfect for hams looking for an efficient and portable antenna for field trips. Discover the design and construction plans, as well as the author's journey to create the ideal travel antenna for lightweight and packable use. -
This document outlines the construction of a homebrew Buddipole antenna variant, designed for portable use and emergency services. The antenna utilizes telescoping whips and loading coils, enhancing its versatility across various HF bands. Key components include fiberglass rods, brass fittings, and Anderson Power Pole connectors, ensuring robust electrical connections. The design emphasizes non-inductive materials to minimize interference, while practical assembly techniques, such as epoxy and heat shrink tubing, are employed for durability. This variant aims to improve upon traditional Buddipole designs, offering greater strength and functionality.