df antenna

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Short Vertical for 160 meters - A top band shortened vertical antenna project. This project includes drawing and MMANA-GAL output screens.
[ Hits: 307 | Votes: 2 | Rating: 9 ]
Experiments with 160m antennas - Experimentin wire antennas on top band using several type of aerials. This includes a 40 to 160 meters EndFed Half Wave kite antennas and 160m/80m loaded vertical antenna.
[ Hits: 177 | Votes: 0 | Rating: 0 ]

Vertical Dipole Antenna for 14 MHz by G3PND - An home made vertical dipole antenna made with simple material. The antenna has a total length of aproximately 16 feet. In this article appeared on June QST 2019, the author explain how he reached the optimal confirugation changing and adjusting the lower part of the antenna, trimming and spacing correctly the copper wire. PDF File to downloas
[ Hits: 1223 | Votes: 3 | Rating: 4 ]

The Vertical Buddi Beam for 20m - The Vertical Buddi Beam on 20m using no Coils. n this article I am going to describe a totally new way to construct and use a very old design the two element Yagi antenna. Unlike the traditional Yagi this design does not require a Tower or a boom, it is 100 percent portable and most important high- performance and easy to assemble using standard Buddipole components.
[ Hits: 579 | Votes: 2 | Rating: 4.5 ]

An 8x2 Element Array Antenna For 144 MHz - This stacking offers a well known simple phasing technique. All elements can be fed in parallel by open wires provided that they are fed in phase. This can be achieved by twisting the open wire phasing-lines at 180 degrees.
[ Hits: 165 | Votes: 0 | Rating: 0 ]

Hairpin antenna for 40m band - A modified Hairpin antenna for a wider bandwidth an mounted on a grounded metalic mast
[ Hits: 327 | Votes: 0 | Rating: 0 ]
Modified harpin antenna for 40m - Results or performance test using an harpin antenna for the 7 MHz
[ Hits: 191 | Votes: 1 | Rating: 7 ]

TriBand Moxon Antenna for 6m 4m 2m - A PDF presentation of a home made moxon antenna for 50 MHz 70 MHz and 144 Mhz. The project is mainly out of surplus plastic Plumbing pipes and clips etc, and also details of how the dimensions were calculated.
[ Hits: 1363 | Votes: 7 | Rating: 7.11 ]

Quad Band Inverted V Antenna - An inverted V Dipole antenna for HF bands, working on 10 20 40 and 80 meters band. PDF Presentation
[ Hits: 383 | Votes: 1 | Rating: 7 ]

The End-Fed Half-Wave Antenna - Presentation - A very well done presentation about End-Fed Half-Wave antennas. This PDF document contains a summary of experiences in how to build custom EFHW antennas. Includes an interesting comparison table of UnUn configurations with recommended toroids, Wire size, turns and capacitors. An useful recap on common errors in building homebrew EFHW Ununs completes the document.
[ Hits: 406 | Votes: 3 | Rating: 8.67 ]

Caged Fan Dipole Antenna - There are a large number of antenna designs for HF. One choice out of many is the fan dipole. The ability to transmit of multiple bands without needing a tuner (and even more with a tuner) is a very desirable factor in choosing a versitle antenna for HF.
[ Hits: 675 | Votes: 2 | Rating: 5.5 ]

J-Pole Construction Drawings - Complete plan for making a 2-meter J-Pole antenna. This drawing in PDF File includes a detailed list of the parts needed to assemble the Jpole antenna for 144 MHz.
[ Hits: 256 | Votes: 3 | Rating: 4 ]
Construction of a J-Pole antenna for 2 meter - If you like building good antennas, this one is for you. The J-pole is a slim, omnidirectional, half-wave antenna fed at the end through a quarter-wave shorted transmission line. Its predecessor is the famous Zepp antenna developed for the Zeppelin airship.
[ Hits: 385 | Votes: 2 | Rating: 10 ]

G7FEK antenna revisited - A different implementation of the G7FEK HF multiband antenna with some adjustments and modifications
[ Hits: 497 | Votes: 2 | Rating: 7.5 ]

Build the PAC-12 Antenna - A multi-band portable vertical antenna can be built with relatively ordinary components obtained from the local hardware store, including replaceable loading coils
[ Hits: 1047 | Votes: 2 | Rating: 6.5 ]

Groundplane Antennas at Various Heights - Mounting on roof at the right ground level can greately impact on antenna performances because will affect the radiated angle of energy.
[ Hits: 178 | Votes: 3 | Rating: 6 ]

Build your own Windom Antenna - Building a Windom HF Antenna. A PDF file presentation about homebrewing a windom antenna for the HF bands with formulas for 40 and 80 meters bands and step by step guide on making a 4:1 balun to feed the antenna.
[ Hits: 767 | Votes: 2 | Rating: 10 ]

Two elements Triband Yagi Antenna - This project was originally developed by Markus VE7CA A Portable 2-Element Triband Yagi - PDF Article
[ Hits: 218 | Votes: 1 | Rating: 7 ]

HyEnd Company - HyEnd is a dutch amateur radio antenna manufacturer. Makers of the popular HyEndFeed Antennas, produce Baluns, bandpass filters and selle Line isolators, coax cables and connectors.
[ Hits: 197 | Votes: 0 | Rating: 0 ]

Five Antennas Switch Box - A project of a 5 Antennas Relay Switch Box, all Switches & Relays have both contacts wired in parallel to improve reliability of operation, to prevent static build up, when an antenna is not in use the feeder coax is grounded.
[ Hits: 1248 | Votes: 1 | Rating: 10 ]