lf antenna
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Antennas : 2M- The 2-Element-HB9CV-Beam
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- The HB9CV-Beam is a 2-Element-Yagi with two driven elements and was introduced by Rudolf Baumgartner, HB9CV in the 1950ies. This beam antenna is a coax-feeded version of the ZL-Special
construction by DK7ZB for 2m, 6m and 10m
[ Hits: 19702 | Votes: 407 | Rating: 7.56 ]
- 40-80 Half-Extended Double Zepp Antenna
- A dual-bander for 80M and 40m. An Extended Double Zepp (EDZ) is a 5/4 wavelength center-fed dipole.
This article will introduce the Half-Extended Double Zepp (HEDZ) which has characteristics that a lot of amateur radio operators should find quite interesting
[ Hits: 11391 | Votes: 9 | Rating: 4.44 ]
- W7AV 40 Meter Half Square
- These antennas offer big gun DX performance on the low bands, yet they are surprisingly simple to build. Try one- you will like it!
[ Hits: 4047 | Votes: 4 | Rating: 6.25 ]
- Balun for HF wire antennas
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- Schema of a self made balun used to match randmon wire antennas, mainly for shortwave listening pourposes, in italian
[ Hits: 36321 | Votes: 23 | Rating: 5.66 ]
- The Monoband HF dipole antenna
- If you are looking for an easy antenna for your favorite band, you can't go wrong with an halfwavelenght dipole, all you need is 3 insulators and some wire
[ Hits: 3479 | Votes: 4 | Rating: 8.75 ]
- Shortened Center-Fed Half-Wave Dipole
- Design your owm HF shiortened dipole. Includes a diagram of a lumped-constant loaded dipole antenna that is intended to fit in available space, rather than requiring a full 1/2 wavelength, at a specified frequency
[ Hits: 2878 | Votes: 6 | Rating: 9.83 ]
- End fed halfwave antenna and matching unit
- One is an EFHWA for 20-40 meters, and the other is a matching unit for the antenna by n0lx
[ Hits: 10397 | Votes: 5 | Rating: 5.4 ]
- Build An LF Antenna Analyzer
- A Portable Low Frequency Antenna Analyzer, For those of us who like to play with antennas on the ham bands, one of the handiest tools to have around the shack is an "antenna analyzer". These gadgets combine a signal generator and standing-wave ratio (SWR) sensor in a small battery-powered unit.
[ Hits: 4567 | Votes: 2 | Rating: 5 ]
- Choke balun
- Essentially, a choke balun is designed to 'divorce' your antenna from the feed line. if your feed line is coaxial cable then you don't want it to be part of your antenna. you want to be able to deliver all your power to the radiator itself, i.e. 'the antenna'. a choke balun does this admirably
[ Hits: 573 | Votes: 11 | Rating: 7.27 ]
- 13 cm Helix Antenna
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- Here is the design of a 2.4 GHz antenna that is ideal for amateur satellite communications. This antenna is easy to assemble because the design itself tolerates inaccuracies in the construction without really affecting performance.
[ Hits: 65534 | Votes: 90 | Rating: 6.04 ]
- The K6STI Receiving Loop
- This relatively unknown antenna does an amazing job pulling weak low band signals out of man-made noise backgrounds
[ Hits: 2926 | Votes: 8 | Rating: 7.12 ]
- NVIS - What it is and how to use it
- An interesting article on NVIS antennas, explaining basics of NVIS antennas and the main usage of this particular aerials by Patricia Gibbons
[ Hits: 5388 | Votes: 11 | Rating: 8.73 ]
- Coaxial half-wave antenna
- A handy solution to have a half wave antenna for fieldwork on a 12m fishing rod.
[ Hits: 682 | Votes: 1 | Rating: 2 ]
- Assembly of the Lightningbolt Quad
- One of the best antenna values on the market is the LightningBolt Quad. At about half the cost of a tri-band yagi, you get five band coverage with a single coax feedline and excellent performance from a light, low wind load antenna.
[ Hits: 3748 | Votes: 10 | Rating: 6.8 ]
- AMANDX Dipole
- The longwire antenna is a very effective antenna for the listener who wants to cover all of the shortwave bands from 530 KHZ to 30 MHZ.a
[ Hits: 3984 | Votes: 4 | Rating: 9.75 ]
- 6m Half wave vertical
- This antenna is very useful for receiving or scanning purposes, but you can use it for transmitting, too. It is 2,94m long and has a pi-configuration (Collins-Filter) for the matching.
[ Hits: 3960 | Votes: 4 | Rating: 7.75 ]
- WLAN antenna 2.4 GHz Do-It-Yourself
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- A simple homebrew outdoor antenna to 2.4 GHz band.
[ Hits: 138756 | Votes: 186 | Rating: 5.52 ]
- Hy Power Antenna Company
- Full size or shortened dipoles, Single band or Multi band, Half Square Antennas, Fan Dipole Antennas, Delta Loop Antennas, Antennas completely assembled
Loading coil packages, delta loops
[ Hits: 5451 | Votes: 8 | Rating: 9.13 ]
- K4TR Antennas
- K4TR Manufacture and sell simple dipoles, half square 2 wire phased vertical arrays, end fed zepp antennas, G5RV antennas. 1:1 baluns
[ Hits: 4424 | Votes: 8 | Rating: 7.88 ]
- Kiwa Electronics
- Kiwa Electronics is a company that specializes in accessory equipment for the radio enthusiast. Our products include Filter Modules to improve receiver performance, a High Performance Medium Wave Air Core Loop Antenna for improved broadcast band reception, the Pocket Loop Antenna, the Earth Monitor, BCB Rejection Filter and Broadband and SW Preamps. We also offer numerous performance upgrades for popular receivers.
[ Hits: 3065 | Votes: 5 | Rating: 8.8 ]
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