tri band j pole

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4m Tall Vertical Dipole for 20m - Constructed in May 2008, this innovative 4m tall electrically full-size halfwave vertical dipole, tunable to multiple bands, offers HF coverage despite its space-saving design. Inspired by cost-effective DIY alternatives, the antenna design departs from conventional center-fed approaches, utilizing asymmetrical dimensions. Despite resonance challenges, the antenna's performance remains viable, boasting broad bandwidth and adaptability, as demonstrated through SWR measurements and EZNEC predictions.
[ Hits: 93 | Votes: 0 | Rating: 0 ]

Linear Loaded 40m Dipole - Dipole for 40m band. It is a simple linear loaded dipole feeded with 450-Ohm openwire feedline. Designed it for resonance at 7.050 MHz, can be tuned on 30m and 80m bands with an external antenna tuner. Build with simple electrical copper wire (2.5 mmq/13 awg) and two fishing poles with size of about 7 m/23 ft.
[ Hits: 162 | Votes: 0 | Rating: 0 ]

10 15 20m Open Sleeve Dipole - Based on a simple project based on a 2 elements Yagi for 20m band, and then becomed a triband yagi with a open-sleeve feed system
[ Hits: 786 | Votes: 3 | Rating: 3 ]
Short Monoband Dipole Antennas - KGD Antennas - The KGD antenna is an option for those with space restrictions. The idea behing this project is to provide a short dipole antenna for HF Bands and to allow operations on HF bands when its not possible to setup large antennas, using these short base loaded dipoles.
[ Hits: 240 | Votes: 0 | Rating: 0 ]
Small HF Antennas - Experiments on HF antennas for restricted spaces. In this article author experiments antennas for 80-10 meters band having just a very small garden and several restrictions. Basic antennas consists of laded multiband dipoles and fan dipole antennas
[ Hits: 1022 | Votes: 19 | Rating: 7.31 ]
Coaxial Dipole Antenna - A distributed capacity coaxial dipole antenna. The antenna is very broadbanded with a very flat swr on all band when setup of the antenna is done at the proper lenght and height.
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Tri-Band J-Pole - This strange looking antenna is a combination of Coupled-Resonator principle by K9AY and a quarter stubs to achieve low angle radiation pattern. Designed with 4nec2 NEC based antenna modeler and optimizer for 145/220/440MHz bands
[ Hits: 1922 | Votes: 5 | Rating: 9 ]

OCF Dipoles - About windom antennas and OCF dipoles, tricks on covering more bands moving feed-points and potential problems. Problems caused by common mode currents in OCF dipoles
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WEB SDR - ROME - Listen to the online web sdr in Rome Italy. A kiwisdr project using a vertical antenna and dipoles for HF bands.
[ Hits: 650 | Votes: 4 | Rating: 8.75 ]

Custom pigtail cable with Anderson PowerPole connector - In this post, we describe how to make a pigtail cable to connect the Kenwood TH-F6A triband HT to a 12Vdc power source via an Anderson PowerPole connector.
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