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Antennas : 160M
- K2YWE's Compact 160m Lazy-U Antenna
- This compact 160m antenna is a half-wave dipole with a vertical section. It requires no radials and has worked well for me.
[ Hits: 17970 | Votes: 16 | Rating: 7.31 ]
- Vertical antenna for 160 meter
- This high antenna require a large ground composed by 40 radials. It's not very handy expecially in windy situations but is very powerfull in pile-ups. In italian
[ Hits: 4135 | Votes: 1 | Rating: 10 ]
- Slim Jim 2m Vertical
- This VHF 145 MHz antenna is easy to build and with no radials. It shows equal gain of 5/8 lambda. It is light weight, you can hang it somewhere (on a tree may be) and work.
[ Hits: 3387 | Votes: 3 | Rating: 6 ]
- The flower pot antenna
- A portable dual-band antenna working principally on 10 meters but also close to the 30 meter band. It's compact, light, economical and doesn't need any radial.
[ Hits: 13366 | Votes: 1 | Rating: 10 ]
- Building a 40m Delta Loop Antenna
- An experimento of a 40 meter delta loop antenna both in horizontal and vertical polarization and several elevation angles with interesting notes about the effect of the radial field under the antenna.
[ Hits: 280 | Votes: 4 | Rating: 8.25 ]
- A magnetic loop antenna for HF
- Able to cover all frequencies between 3.5 and about 10 MHz, the loop described here is directional, does not require a radial system, and stands just 1.8 metres tall. The antenna can be put together in a short time and is cheap by Peter Parker VK3YE ex VK1PK
[ Hits: 100743 | Votes: 46 | Rating: 6.74 ]
- Vertical Antenna For 40- 80-160 Meters
- The basic antenna is a vertical monopole, using elevated radials to complete the ground plane by k5oe
[ Hits: 4291 | Votes: 6 | Rating: 6 ]
- High Performance 40 Meters Vertical
- 40 meter vertical antenna construction, a shortened easy-to-build vertical, with no-radials,
made from surplus military camouflage poles
[ Hits: 2200 | Votes: 2 | Rating: 8.5 ]
- Umbrella Antenna for 80 Meters
- An umbrella antenna is basically just a vertical monopole antenna that is top-loaded with a large end-hat. The hat consists of a number of radial wires that slope away, downward from the top of the antenna.
[ Hits: 912 | Votes: 0 | Rating: 0 ]
- DM9EEs info site on FCP - folded counter poise (Radial)
- No space for 120 ground radials, nor 4 elevated radials ? Give the FCP a try. Itcan be your solution to get on topband. Or even build a 4 square on a city lot.
[ Hits: 523 | Votes: 1 | Rating: 9 ]
- J-Pole theory
- The J-Pole antenna is an omnidirectional antenna that can be used for base, mobile and field day stations. It does not need a ground plane, radials or a complicated matching system. The J-Pole can be cheaply, simply and quickly constructed using a variety of techniques, some of which are discussed in this article.
[ Hits: 30304 | Votes: 26 | Rating: 6.87 ]
- Notes on Designing LF-MF antennas
- A free book on designign LF MF antennas. The six chapters in the body of the book are limited to basic information which, combined with a little modeling or simple calculations, can be applied directly using graphs for special problems like inductor design.
[ Hits: 259 | Votes: 2 | Rating: 9.5 ]
- An End Fed Half Wave Antenna
- This end fed type of antenna was marketted in the UK and is a useful system for the portable set-up. Being a half wave, no radials or counterpose wires are needed.
[ Hits: 4740 | Votes: 0 | Rating: 0 ]
- Ground / Radial Systems
- Guide to ground mounting antennas, notes on efficiency, elevated installations, metal towers and masts, other mounting schemas, moble homes and rv, lightning protections, artiche by Bencher
[ Hits: 1141 | Votes: 1 | Rating: 10 ]
- Antenna & Ground Help
- Radials & Counterpoise
[ Hits: 787 | Votes: 0 | Rating: 0 ]
- 43 Foot Multiband Vertical Installation and Performance
- Installation notes, and decision analysis for selecting and erecting a multi band vertical antenna with radials.
[ Hits: 2944 | Votes: 7 | Rating: 8.57 ]
- Field Day Inverted L
- Inverted L antenna, even if not completely freestanding, it only requires one line to be lauched into a tree to support the end of the horizontal wire. This project is done with a 31-foot Jackite pole for a support and uses six 15-foot radials and one 33-foot radial.
[ Hits: 84 | Votes: 0 | Rating: 0 ]
- Basics for a good Antenna:``Only if you can hear it, you can work it!``Symmetric antennas save a lot of trouble.``No traps - no radials - no loading coils.
[ Hits: 5519 | Votes: 57 | Rating: 5.8 ]
- Challenger DX Antenna Review by NK7Z
- A review of the GAP Challenger DX Antenna that is not a traditional 1/4 wave vertical, but is a vertical dipole, this gives it several advantages over a standard 1/4 wave vertical, mainly the reduced number of radials, with excellent performances.
[ Hits: 217 | Votes: 2 | Rating: 10 ]
- Troubleshooting Traps
- This article refers mainly to the old Cushcraft 1/4 wavelength AV series of antennas (12AVQ, 14AVQ etc) hence the references to radials. The R series (R5, R7 etc) are 1/2 wavelength antennas, and the radials are NOT 1/4 wavelength resonant.
[ Hits: 2771 | Votes: 0 | Rating: 0 ]
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