3 wire dipole antenna
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Antennas : 20M : 20 meter Dipole Antennas- 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 ]
- SAFARI 40-30m vertical Antenna
- Roach pole vertical antenna for 40 and 30 meters band featuring good performance on short skips contacts compared to wire dipole
[ Hits: 310 | 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 ]
- Shortened 80m Antenna
- An antenna for 80 meters band for those who does not have enough space to setup a halwave wire dipole that is aprox 130ft or 40 meters. The antenna is an open-wire-fed shortened dipole
[ Hits: 421 | Votes: 1 | Rating: 1 ]
- Multiband Dipole for 40 30 17 m
- A portable home made wire dipole antenna that works on 40 30 and 17 meters band.
[ Hits: 312 | Votes: 0 | Rating: 0 ]
- Multi-Band End-Fed Antenna Design for Limited Space
new
- This document details the construction of a multi-band end-fed antenna, suitable for situations with limited space for larger antennas. The design utilizes a 1:49 to 1:60 impedance transformer to match a half-wave wire antenna fed at one end. Compared to a traditional dipole, this antenna resembles a highly unbalanced Windom antenna with one very long leg and a virtual short leg. The design eliminates the need for radials but relies on the coax cable shield for grounding. The document recommends using at least 10 meters of coax and installing a common mode filter at the entry point to the shack for improved performance.
[ Hits: 76 | 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: 488 | Votes: 2 | Rating: 9.5 ]
- Testing Dipole vs Indoor Magnetic Loop Antenna
- Testing performances of indoor antenna. A comparison of a magnetic loop antenna vs a classic wire dipole done using wsprlite on 30 meters band.
[ Hits: 856 | Votes: 2 | Rating: 5.5 ]
- Portable wire antennas
- This document describe serveral wire antennas, from the folded dipole, to the common halfwave monoband antenna for those who want to make HF portable operations in holiday.
[ Hits: 844 | Votes: 2 | Rating: 1 ]
- Balcony Dipole Antenna for 20 Meter
updated
- Antenna may be made practically from any wire (strand, solid) having a reasonable diameter 0.5 2.0 mm (24- 12 AWG). Antenna may be installed at any balcony of 3 to 6 meter length.
[ Hits: 341 | Votes: 4 | Rating: 10 ]
- Variations on a Dipole
- Antenna patterns are all about interference. Presentation on wire antennas for HF bands. Dipoles, horizontal and vertical dipoles, effects of ground on radiation patterns, multi-band wires antennas. Knowing what you should expect from the radiation patterns for waves on your wires will help you choose what will work best for your needs. The principles of interference can lend insight into what to expect from a wire antenna.
[ Hits: 98 | Votes: 0 | Rating: 0 ]
- Cloverleaf Antenna
- Cloverleaf antenna is a circular polarized antenna which is way better than the cheap dipole antenna that comes with video transmitters and receivers. The Cloverleaf is a closed loop antenna which the signal and ground wires are connected. The cloverleaf antenna has 3 loops at 120 degree apart, and they are titled at 45 degree to horizontal plane.
[ Hits: 64 | Votes: 0 | Rating: 0 ]
- Cobra Antenna - A folded dipole
- A wire dipole antenna for the 80 and 40 meters band obtained by folding elements of a dipole and feeding with a 1:4 balun.
[ Hits: 1053 | Votes: 5 | Rating: 6.8 ]
- HF Wire Antennas for Field Day
- 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.
[ Hits: 220 | Votes: 0 | Rating: 0 ]
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