Search results

This resource provides comprehensive instructions for constructing a 2 element quad antenna specifically designed for the 10, 12, and 15 meter bands. The antenna features a diamond configuration, which offers improved gain compared to a square configuration. The author shares insights into the materials used, including a square-aluminum boom and bamboo poles, along with construction techniques that ensure durability and optimal performance. This project is ideal for amateur radio enthusiasts looking to create their own antennas at home. In addition to construction details, the author discusses the antenna's performance, noting its effectiveness even at a height of 8 meters. The quad antenna reportedly performs comparably to a 3 element yagi, with excellent SWR readings and strong signal reports from European stations. This project is suitable for beginners and offers a cost-effective solution for those interested in enhancing their amateur radio setup with a homemade antenna.

A simple design of a 9 elem. yagi antenna for 2 meters band

Plans for 3 elements beam antenna and gamma matches

Two dipoles fed from the same coaxial line by n6bz for 20 and 15 meters

Build a portable VHF yagi antenna for 2 meters. All you need is two rabbit ear antennas from Radio Shack, two CATV baluns, four feet of 3/4 CPVC pipe with one tee.

2 elements short boom yagi for 80 meters

Details the construction and optimization of antenna systems for amateur radio satellite operations, focusing on practical, homebrew solutions for VHF/UHF bands. It covers building _groundplane antennas_ from salvaged materials, recycling old beam antennas into new configurations like a 2-meter crossed yagi, and constructing a 10-meter horizontal delta loop. The resource also explains antenna matching techniques, including folded dipole driven elements and quarter-wave transformers, along with the importance of accurate SWR measurements and minimizing coax loss. Demonstrates how to achieve a **1:1 SWR** by carefully trimming elements and adjusting radial angles on groundplane antennas. It provides insights into selecting appropriate coax and connectors, highlighting the benefits of Belden 9913 for low loss and the proper installation of _N-connectors_. The article also addresses RFI mitigation from computer birdies and presents a design for a silent triac antenna control circuit, offering practical solutions for common satellite station challenges.

Improve your 80 and 160 meter signal without a Yagi!

Complete plans and drawings to build a small 3 elements Yagi antenna for six meter band by Ken Willis

HF Wire Yagi antenna with notes and eznec file on original article of a Portable 3-Band Yagi antenna for 10-15-20 meter band made with wire elements. Include link the original to QST article.

A wire yagi antenna for 20 and 40 meters band suitable for outdoor and field day operations

Pictures and plans of a 4 elements yagi beam antenna for 14 Mhz

A 3 elements long yagi antenna for 6 meters band by ON6MU

A 3 Element Mono-band Yagi for 20 meters by Kees Wiegers, PA5CW (ex-PA3BHS)

DJ9BV yagi antenna for 2 meters band

Lots of information of hidding transmitters, building portable yagi antennas, s-meters, and much more

Based on a design by JM1SZY for 50 MHz that he developed using YO

5 Elem. yagi for 10 meters, 9 element yagi beam antenna for six meters band by ON4ANT

The KJ5VW 20 Meter Mini Yagi by Gary R. Hanson, Austin, Texas

A project by G3SYC of a log periodic antenna for 6 meters band

A Portable 2 element Triband Yagi antenna that can work on 10 15 20 meter band by VE7CA

A helically wound two element 40 meter yagi beam antenna from a 1974 QST article

DX dual dipoles by nb6z for 20 and 15 meters

A homemade antenna plan for a portable yagi beam antenna for the Six meters. Consist of a 3 elements yagi beam design include antenna dimensions, with elements lenght and spacing.

A 40 meter band two elements yagi beam with a 6mt boom with pictures and drawings

A moxon antenna for 28 MHz

17 Meter 3 element TA33 junior mono band yagi antenna conversion project by K6TC

The **NW3Z** optimized wideband antenna designs, originally presented at Dayton 2001, detail Yagi configurations for the 20-meter, 15-meter, and 10-meter amateur radio bands. This resource provides access to the design files, likely containing critical parameters such as element spacing, element lengths, and boom dimensions, which are essential for replicating these directional antennas. The designs focus on achieving wide bandwidth, a desirable characteristic for contesters and DXers operating across a significant portion of each band. The content specifically references "nw3z-Antenna-DesignsDownload," indicating that the core information is available as a downloadable file, presumably in a format suitable for antenna modeling software or direct construction. Such files typically include **NEC models** or similar data, allowing for performance analysis and optimization before physical construction. The emphasis on "optimized wideband" suggests design considerations for SWR bandwidth and gain characteristics over a broader frequency range than typical narrow-band Yagis. The resource serves as a direct source for specific, proven antenna designs from a known amateur radio antenna designer, offering practical data for hams interested in building high-performance Yagi arrays for HF.

10-12-15-17 meter band yagi antenna

OZ2OE Technical pages, a 3 element 28 MHz light weight Yagi for 10 meters band

Picture and construction details of a 5 element 20 meter monobander

A homebrew project for a 2 meter 4 element yagi beam antenna by 2E0HTS

A 3 and 5 element portable yagi antennas for 2 meter band

An excellent all-around 40 meter antenna for those who don't have room for a multi element yagi antenna

A 3 element yagi beam for 40 meters band

The BV6 50 MHz Yagis resource details the construction of two distinct Yagi antenna designs for the 6-meter band, specifically a 1-wavelength (1wl) model and a 2.1-wavelength (2.1wl) model. The 1wl Yagi, with a boom length of 5.850m, achieves a gain of **9.4 dBd**, while the 2.1wl Yagi, spanning 12.90m, boasts a gain of **11.9 dBd**. These designs adhere to a proven methodology for optimizing current slope and maintaining constant phase delay across parasitic elements, ensuring high gain per boom length and an _excellent pattern_. Both designs target a 50-ohm input impedance, facilitating straightforward feeding with a robust folded dipole. Final verification using NEC-II software confirmed the antennas' exceptional stacking capabilities, yielding stacking gains exceeding **5.8 dB** for a 2x2 array with minimal mutual detuning. The resource provides common mechanical data, including boom and element diameters, and specifies element lengths corrected for boom diameter. While the original _DUBUS Technik V_ publication contained incorrect element lengths, this resource provides the accurate dimensions for proper construction, emphasizing the use of readily available materials for cost-effective amateur radio deployment.

VE7CA reprint an interesting article taken from arrl antenna compendium. Two elegant practical and portable 6-meter gain antennas, a two-element quad and a tree-element Yagi antenna for 50 Mhz-6 meter band

A 40-meter reversible _Moxon rectangle_ antenna project details its construction and performance, featuring 51-foot long sides and 7.7-foot turned-in sections. The design incorporates a 16.5-foot boom, with elements spaced 1.1 feet apart, constructed from #14 covered wire. It utilizes two double-pole relays for switching between NE and SW directions, achieving F/B ratios up to 40 dB on CW and 30 dB on SSB, with distinct reflector stub settings for each mode. This antenna replaced a full-size 2-element Yagi, demonstrating comparable forward gain while offering superior F/B ratios and directional flexibility. _EZNEC_ modeling indicates only 0.2 dB less forward gain than the Yagi. The system uses no baluns, relying on half-wave feedlines and switched stubs for impedance matching. The antenna is tree-supported at 45 feet, with its effective radiation height modeled at 80 feet due to local terrain, enhancing its performance over a nearby lake.

A 5 elements yagi antenna for 10 meters band project, plane and picture of the EF105A by YU7EF

Designing quagi and yagi antennas on 2 Meters, some preliminary notes by Cebik, W4RNL

An option for restricted and limited space, to operate the six meters band with an indoor three elements yagi antenna by Brian Williams

A 3 element yagi antenna for 17 meters

Yagis for 20 15 10 meters band by Nathan A. Miller

The EF0604S is a compact 4 elements yagi antenna plan for six meters band featuring 8.77 dBi gain and a front back gain of 17.89 dB. Article includes elements dimensions and spacing, along to pictures of some homebrewed examples.

Elelement yagi beam antenna for 2 meters band by ON6MU

A simple to build Yagi 2 element antenna for 15 or 20 meters band by 9m2mso

EF403 is a 3 element yagi antenna for the 40 meters band with high gain and F/B Ratio

An homebrew project for a 3 elements yagi monoband antenna for the 20 meters by 9M2MSO

A 144 MHz six element yagi beam antenna plan

A 7 elements yagi beam monoband antenna for 14 Mhz by VE3GK