Wire Antennas for Amateur Radio
A comprehensive collection of resources for building, installing, and optimizing wire antennas, including various designs like dipoles, doublets, inverted vees, and multiband configurations for all HF bands.
Wire antennas are a fundamental part of amateur radio, offering hams a flexible and often economical way to get on the air across many bands. Operators frequently build wire antennas for HF DX, local QSOs, and contest operations due to their simplicity and adaptability. From basic dipoles to complex arrays, wire designs allow for extensive experimentation and homebrewing, making them a popular choice for both new licensees and seasoned operators.
This category provides practical designs and construction notes for various wire antenna projects, including multiband options like the NorCal Doublet and the W4JOH Cobra antenna. Hams can find detailed plans for single-band inverted Vees, such as a 40M Inverted Vee, and learn about techniques for installing wire antennas in challenging environments. There are also resources comparing the performance of different wire configurations, helping operators optimize their stations for specific bands and operating goals.
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Inverted L antenna, even if not completely freestanding, it only requires one line to be lauched into a tree to support the end of the horizontal wire. This project is done with a 31-foot Jackite pole for a support and uses six 15-foot radials and one 33-foot radial. -
Flag Antenna construction and test results by WA1ION -
Dipole antennas, vertical half-wave dipole antennas with impedence tranformes that can be used for portable operations. Some well worn antenna configurations are the easiest and loudest lash-ups you can try. -
This article describes a simple Inverted L antenna for the HF bands designed to work on 80m, 40m, 30m and 20m -
160 to 40 meters inverted L antennas projects -
Make them simple then Make them work. The LAZY H antenna is a general type of antenna that is in the curtain array family. By placing two 1 wavelength dipoles in a plane that is at right angles to the direction of maximum radiation and keeping the proper in-phase current condition to each element, you can achieve a high gain bi-directional antenna. -
With the view to establish a quick and easy multi-band antenna deployment for portable and camping operations a simple long wire antenna with an earth or earth plus counterpoise arrangement with a 9:1 voltage unun including a tuner or simply with a tuner is one possible solution. With the 9:1 voltage unun and wire lengths suggested in the below tables the antenna should present non extreme impedances for all HF amateur band frequencies. This page is far from complete and represents the ongoing investigation into this type of antenna. Experiments to date seem to have raised more questions than obvious answers. -
This PDF document provides a design guide for a mini ununtenna, a popular antenna option among hams. It includes detailed instructions and specifications for constructing this type of antenna, making it useful for hams looking to build or optimize their antenna setup. The guide is intended for amateur radio operators with some technical knowledge and an interest in antenna design. It covers essential aspects of the mini ununtenna to help hams improve their radio communication capabilities. -
Learn how to build wire Yagi antennas for your ham radio setup. Discover how smaller wire elements can offer practical and portable options for temporary operations. Explore designs like the Hex Beam, Spider Beam, and Moxon that require less mechanical complexity and can be easily rotated or supported. Find out how to construct and hang wire Yagis from ropes, trees, or masts with inverted vees or horizontal elements. Get tips on element positioning, gain, and beamwidth considerations. Follow simple construction steps using a rope boom and marking element positions for efficient assembly. Enhance your ham radio experience with versatile wire Yagi antennas. -
Random Length Wire Antennas by WOIPL -
An interesting article on random wire antennas, and how to choose the optimal lenghts for multiband operations. -
When on the trail, at Field Day, or whenever a good antenna is unavailable, a random wire can save the day, but it is important to understand its properties. -
A remotely tuned 80m to 10m wire vertical antenna -
A dual band portable inverted V antenna for 80 and 40 meters band with dimensions for other bands and several assembling instruction -
Efficient Low Band Counterpoise for Restricted Circumstances Loss Avoidance Opportunities and Techniques for the Low Bands The short and linear FCP was designed to reduce ground losses from inadequate radial systems beneath inverted L and other vertical antennas. -
The multiband tuned doublet, or center-fed Zepp, is a simple and efficient HF antenna that operates effectively across most amateur bands using a balanced parallel-wire feedline and antenna tuner. Unlike coax-fed dipoles, it tolerates impedance mismatches with minimal loss. By selecting suitable feedline and dipole lengths, one can achieve stable multi-band operation. While it doesn’t match monoband Yagis, it offers excellent performance, low cost, and broad coverage. Its radiation pattern and efficiency vary with frequency, but it remains a practical and versatile solution for HF operators. -
The author explores enhancing the performance of a 7-meter fiberglass squid pole wire antenna for amateur radio. The wire, resonant at 10MHz, poses impedance challenges on various bands. Experimenting with direct coax feed and UN-UN transformers, the LDG Z11-Pro2 auto-tuner is found effective but may show deceptive SWR readings. The author employs adjustable UN-UN ratios and introduces a custom "porcupine" coil to optimize the antenna's efficiency. -
The U01 emergency communications antenna is a versatile, multiband antenna designed for 80/60/40/20/17/15/10m bands, known for its reliability and compact size. It features a broadband transformer wound on various core options like FT82-43, FT114-43, or FT140-43, with the latter capable of handling up to 100W. The antenna incorporates a PCB with options for SMA and BNC connectors, and a weather-proofed design for durability. The lightweight construction, using materials like DX Wire UL and Polyester rope, makes it highly portable. The antenna's design has been tested and proven within the DARC Chapter U01, with multiple build options and detailed documentation available for DIY enthusiasts. -
A collection of drawings of most popular wire antennas for hf ham radio bands -
In this article the author feature the various types of beam antenna that can ben builw using wires, like moxon, spieder and hex beam, delta loops, bird yagi -
The author shares a unique experiment with a 200ft Grasswire antenna—laying wire directly on the ground. Despite inherent losses, the setup enables successful radio communication with a Kentucky station, highlighting the antenna's practicality for portable use with minimal power.
