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Antennas
Analysis of HF Monopoles
- Analysis of several monopole antennas, the differences between a perfect and an imperfect ground and effects using a ground plane made of radials or counterpoises.
The Hudson antenna
- A vertical antenna for 80 and 40 meters project with lots of assembling pictures and plan by LU9DPD in spanish
4 element yagi for 6 meters
- Project plan for a 4 element yagi beam for 50 Mhz in spanish
LU9DPD Daniel
- Homebrew, antenas, balunes, expediciones, circuitos, electrónica, torres, fotos y relatos, todo referente a radioafición, radioaficionados y radioamateur
Inverted Vee calculator
- Online calculator for dipole and inverted vee antennas
Horizontal dipoles
- This article describes the characteristics of an horizontal dipole and shows the results of several simulations made with MMANA-GAL, covering models for the 20 m, 40 m and 80 m bands.
Two wire broadband HF dipole
- This article describes the design and simulation of a two wire broadband dipole antenna for the HF band, using the software 4Nec2. The antenna is designed to operate in the full range 3-30 MHz
Magloop antennas
- Article about basic principles of magnetic loop antennas, in portuguese
LU9DPD Windom dipole
- A multiband windom dipole antenna for 80 40 20 10 meters, feeded with a home made 4:1 balun, in spanish.
Rhombic Antennas
- Description and simulation of two types of rhombic antennas, using the software 4Nec2: the simple bi-directional and the terminated directional rhombic antenna
Rhombic antennas
- Description and simulation of two types of rhombic antennas, using the software 4Nec2
VHF-UHF Portable Yagi-Uda
- VHF-UHF portable Yagi-Uda antenna design
and construction notes by XE1MEX
Sloping Vee 470
- Article describes the design and simulation of a multiband Sloping Vee antenna for the HF band, using the software MMANA-GAL. Design with 470 ohms resistive loads. The antenna requires a 4:1 balun.
Antennas and transmission lines
- A very exaustive article on antennas and transmission lines. Covers many aspects of antennas and feed lines, in spanish
Marconi Antenna
- This article describes the characteristics of the Marconi antenna and shows the results of several simulations made with MMANA-GA
Build Windom Antennas
- This article by EA4FSI explain how to plan and build your own windom antenna
Codan C463 multiband antenna
- This article describes the design and simulation of a Codan C463 multiwire broadband dipole, using the software MMANA-GAL.
Loop-Uda-Yagi for 2.4 Ghz
updated
- Information on wifi antenna
ALGARVE Dx Team
- South Troop Amateur Radio DX Tean based in
south of Portugal in Algarve province. Contest partecipations and dx peditions using portable stations and wire antenas are main activities
LU4WG Jorge
- Pagina personal de Radioaficion, Satelites, Antenas, Electronica y Aviacion
Steelbras Antenas
- Antenna manufacturer based in Brazil, produce mobile HF VHF and UHF antennas and VHF UHF Base antennas
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