dipole app
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Antennas : 12M- Trapped Dipole for 12 and 17 Meters
- A small sized and very cheap antenna project that allow you to work on WARC bands with a total gain very close to the dipole in both bands. On 12 meters is a normal dipole, while on 17 is a trapped dipole. Article in Italia
[ Hits: 882 | Votes: 1 | Rating: 1 ]
- 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: 1219 | Votes: 3 | Rating: 4 ]
- 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: 65 | Votes: 0 | Rating: 0 ]
- 40-80 Coax Trap Dipole
- Full article on how to build a home-made wire dipole antenna for 40 and 80 meters band.
Article is fully in italian, as it was published on ARI RadioRivista, but is plenty of self explaining pictures that will guide you on homebrewing this trapped dipole antenna for the lower amateur radio bands.
[ Hits: 261 | Votes: 3 | Rating: 9.33 ]
- Online LInked Dipole Designer
- The page for designing linked dipole antennas allows users to swiftly create a versatile multi-band antenna suitable for portable applications in outdoor settings, such as in the field or on mountain tops.
[ Hits: 98 | Votes: 0 | Rating: 0 ]
- 20 40 80 Trapped Dipole
- An homemade portable trapped dipole antenna for 40 and 80 meters band with an optional extension for the 20 meters.
[ Hits: 1396 | Votes: 9 | Rating: 5 ]
- Bent Dipoles reference website
- Antenna modeling discussions about What happens if... a dipole is bent horizontally, laterally, vertically. Zig-zag, meander, catenary curve.
Effect of sag, elevation, radials. OCF off-center feed, harmonics. Includes 4NEC2 antenna models for each study.
[ Hits: 707 | Votes: 0 | Rating: 0 ]
- Trapped Dipole for 15/20 Meters Bands
- An easy to build dipole for 21 and 14 MHz with traps made by two T50-6 toroids cores mounted on a simple PCB foil
[ Hits: 622 | Votes: 2 | Rating: 7 ]
- Trapped Dipole Antenna for 20-30-40m
- An 20 30 40 meters trapped dipole antenna plan for sota and portable operations.
[ Hits: 266 | Votes: 1 | Rating: 10 ]
- 160-80-40 Metre Trapped V-Dipole
- A Trapped dipole inverted V antenna for lower HF Bands. Construction details are for temporary installation. Permanent installations will require additional ruggedising and waterproofing however the basic electronics concepts remain the same. This project includes SWR plots for the three bands and pictures details of the homemade traps.
[ Hits: 108 | Votes: 0 | Rating: 0 ]
- Fan Dipoles 10/15/20m and 12/17/30m
- How to build Fan-Dipoles by DK7ZB. Experiences with various band combinations. Not all combinations are working properly. If the frequencies are to close together the impedances will lead to a very bad SWR. This happens with the bands 10-12-15m or 15-17-20m.
[ Hits: 482 | Votes: 2 | Rating: 9.5 ]
- The C-Pole Antenna
- C-Poles for 20m and 6m, it is a folded half-wave dipole with an asymmetrical tapped 50-Ohm-point in the lower part of the antenna. Design hints by DK7ZB
[ Hits: 932 | Votes: 47 | Rating: 8.3 ]
- W3DZZ - a classic dipole heavily modified,
- An easy to build multiband trapped dipole that can work well on short low bands for skip contacts
[ Hits: 2326 | Votes: 9 | Rating: 7.56 ]
- OH2EC Antenna
- A trapped dipole antenna based on the orignal W3DZZ antenna design resonating on 80 40 20 15 10 meters
[ Hits: 1501 | Votes: 5 | Rating: 8.2 ]
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