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Antennas : 20M : 20 meter Dipole Antennas- Dipole/Yagi Antenna
- DX dual dipoles by nb6z for 20 and 15 meters
[ Hits: 6571 | Votes: 5 | Rating: 7 ]
- VHF TX Loop
- VHF Antenna in a lunchbox. The magnetic loop on two metres band Lloyd Butler VK5BR
[ Hits: 4456 | Votes: 4 | Rating: 4.5 ]
- A Feasible Full Sized 40 Meter Beam
- This project started as a result of renewed interest in 40 meters coupled with the desire for an antenna system that would be more effective than the simple dipole.
[ Hits: 7238 | Votes: 1 | Rating: 1 ]
- 50MHz J-Pole Antenna
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- Need a general purpose antenna on the magic band? The J-Pole is an easy-to-build and inexpensive device that provides an omni-directional vertically polarised antenna without the need for a ground plane. In technical terms, it is an end fed vertical 1/2 wave which is fed via a 1/4 wave matching stub.
[ Hits: 33818 | Votes: 18 | Rating: 7.05 ]
- End-fed vertical j-pole and horizontal zepp vertical
- There are many incorrect ideas and claims surrounding end-fed vertical antennas (like the I-Max 2000), end fed horizontal antennas, Zepp, and J-pole antennas. This article describes it.
[ Hits: 8780 | Votes: 4 | Rating: 6.75 ]
- A J-Pole for 2-meters and 70-cm
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- An Easy Dual-Band VHF/UHF vertical Antenna made with a TV twin lead and coax cable
[ Hits: 103661 | Votes: 135 | Rating: 5.97 ]
- A Small Wire Loop Antennas for 160 meters
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- Low noise, receive only coax loop antennas for 160 - 10 meters HF bands
[ Hits: 49334 | Votes: 10 | Rating: 6.5 ]
- Small Loop Antennas by AA5TB
- Also known as Magnetic Loop Antennas,
by AA5TB. Excellent article on construction tips and tecniques of a Small Loop antenna
[ Hits: 2789 | Votes: 7 | Rating: 7.6 ]
- MAGLoop Antenna
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- Magnetic loop antenna for 10-30 MHZ, 3.5-10 MHZ, description, construction details, homemade.
[ Hits: 25461 | Votes: 18 | Rating: 5.34 ]
- Crossed Field Antenna
- The Crossed Field Antenna (CFA) is one of the applications of Correction of Maxwell's Equations which was used over 150 years ago which was proved these days that the Magnetic Field Source is only the Displacement Current not the Conduction Current .
These Corrections was made by an Egyptian Doctor Engineer Fathi Kabbary , who reached the New Correct Theory which shows that the height and efficiency of the antenna doesn't depend on the wavelength
[ Hits: 2306 | Votes: 5 | Rating: 2.8 ]
- Antennas : theory and designs
- Thierry LOMBRY, ON4SKY, develops in several long articles all you need to know about antennas, their design and performance, for both amateurs and SWL
[ Hits: 9213 | Votes: 11 | Rating: 3.27 ]
- OH7SV Matti Hohtola Ham Projects
- The most modern QRP transceiver in 2004,Direct Conversion HF Transceiver with DDS LO,
50 ohm to 200 ohm HF wide band transformers,
Wilkinson splitter for RX measurements,
Windom baluns 2001/2004,
Ferrite rod antenna for 80 meter, Magnetic Loop Antenna for 80 m, Mascot Switched PSU 9320 modification to 8A peak current, 150W MOSFET linear amplifier for 80m, 80 m HF SSB/CW Transceiver
[ Hits: 20372 | Votes: 36 | Rating: 8.11 ]
- PROCOM Antennas
- Manufacturer of communications antennas, bandpass filters, RF combiners, receiver multicouplers, diplexers, duplexers, RF connectors, RF circulators, RF isolators, RF couplers and SWR meters
[ Hits: 5597 | Votes: 7 | Rating: 6 ]
- Gizmotchy Antennas
- The Charles Gizmotchy high performance horizontal and vertical beam antennas. Two, Six, Ten and eleven meters antennas
[ Hits: 3127 | Votes: 16 | Rating: 7.5 ]
- Adventures in GPS antenna construction
- Adventures in amplified GPS antenna construction; an experiment
[ Hits: 1545 | Votes: 0 | Rating: 0 ]
- W1GHZ Microwave Antenna Book
- The W1GHZ Online Microwave Antenna Book online
[ Hits: 9213 | Votes: 15 | Rating: 6.67 ]
- Bicycling J-Pole 2-meter antenna
- An antenna for the 2-meter band, made by sliding coax insulator braid over a glass fiber bicycle safety flag pole
[ Hits: 7959 | Votes: 6 | Rating: 4.17 ]
- Dino's Tower Service
- Located in North Florida, specializing in tower installations, antenna assembly, and wire antennas. Experience includes a variety of antennas and towers from Rohn 25 up to Rohn 65 and rotating tower systems (KOXG).
[ Hits: 1163 | Votes: 1 | Rating: 1 ]
- ERP Calculator Plus
- ERP Calculator is an Amateur Radio software utility designed to perform a side-by-side comparison of two Ham Radio antenna systems. ERP Calculator comes pre-programmed with data files including published data for several popular brands and types of coax cable as well as several popular antenna system brands and models. ERP Calculator displays values of ERP, Antenna Power Gain, Antenna Feed point Power, Antenna System Gain in dB, Antenna Gain in dBd, SWR Attenuation in dB, SWR Power Attenuation, Coax Loss in dB, and Coax Power Loss
[ Hits: 3001 | Votes: 9 | Rating: 5.11 ]
- AIO All in One by WD8KNC
- Windows contest logging software with multiple functions like antenna rotor control, dx cluster, cat control, voice and cw keying, supports many data modes, qrz lookup, pirint qsl and labels, mapping and more. Donationware software.
[ Hits: 12960 | Votes: 14 | Rating: 5.78 ]
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