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l antennas

1407 links - and 47 categories

Antennas : 23cm
  • DL6WU Yagi Antennas for 1200 MHz - Dubus article about DL6WU long yagi antennas for 23 cm band Article is both in german and english. Yagi antennas are valid alternative to dishes for troposcatter operations. This article explains design and mechanical data for 1296 MHz Yagi Antennas
    [ Hits: 313 | Votes: 1 | Rating: 10 ]
Antennas : 2M
  • VHF Bi-Square Beam Antenna - 2 Wavelength ,2 Meter Bi-Square Beam , 5dbd gain. This antennas are very cheeap to build and their radiation pattern is similar to a figure 8 with maximum signal through the loop but they may be used as a near-omnidirectional antenna
    [ Hits: 185 | Votes: 2 | Rating: 9 ]
Antennas : 6M
  • Slot-Cube Antenna for 6 Meters - Slot cubes are folded skeleton slot antennas with widened, folded dipoles bent into a cube to reduce size. QST Article 12 2019
    [ Hits: 570 | Votes: 2 | Rating: 5.5 ]
Antennas : Beverage
  • OK1RD Beverage Antennas - A Beverage antenna system consisting of 4 time reversible Beverage antennas in length of 320m each.
    [ Hits: 124 | Votes: 1 | Rating: 5 ]
  • Beverage switch-box - A home made Beverage system for portable use. The goal was to switch between 4 single Beverage antennas without interfering on the other receiving stations.
    [ Hits: 114 | Votes: 1 | Rating: 8 ]
Antennas : Dipole
  • Dipole Antennas - Basics - Antenna most often used by Hams around the world. Inexpensive, effective and easy to build, what more could anyone ask for in a home made antenna.
    [ Hits: 160 | Votes: 0 | Rating: 0 ]
  • 80m-40m Loaded Dipole - A dual band dipole antenna for 40 and 80 meters band. Total lenght of 26 meters, foreseen two coils at aprox 11 meters distance from center feed.
    [ Hits: 244 | Votes: 4 | Rating: 5 ]
Antennas : End-Fed : End Fed Half Wave Antenna
  • Speaker Wire EFHW Antennas 20m/ 40m - Author experiments end fed half wave antennas using common two conductore speaker wire, this article features a couple of end-fed halfwave wires for the 40M and 20M bands.
    [ Hits: 259 | Votes: 1 | Rating: 9 ]
Antennas : HexBeam
  • History of the Hexbeam Antennas - The original HEXBEAM was developed by Mike Traffic, N1HXA, in the early nineties. It is true that an M over W configured yagi antenna that resembled a butterfly was earlier tried successfully. But the advanced electrical design, the characteristic nesting concept and central terminal post that enable the multi band functionality along with the basic hardware design were all developed by Mike Traffie.
    [ Hits: 129 | Votes: 2 | Rating: 7.5 ]
  • HexBeam Antenna Explained - A hexagonal beam is a form of the Yagi antenna which is based on parasitic principles developed early in the last century in Japan for achieving gain in one direction.How HexBeam antennas works. A hexagonal beam operates exactly like Yagi antenna, but instead of a driven element that is straight like a dipole, it is a wire bent into the shape of the letter M.
    [ Hits: 167 | Votes: 0 | Rating: 0 ]
Antennas : J-Pole
  • J-Pole and Expanded Super J-Pole - The standard J-Pole antenna is a end fed 1/2 wavelength antenna, in this article is explained also how to build an expanded Super J Pole that provides about 4.5 dbd gain. These antennas can be built from EMT electric conduit pipe
    [ Hits: 313 | Votes: 4 | Rating: 5.5 ]
Antennas : Longwave
  • Transformers for low-bands antennas - Transformers can be used as part of a hybrid combiner or as phase inverters for an RX antenna array.
    [ Hits: 153 | Votes: 2 | Rating: 5.5 ]
Antennas : Microwave
  • Basic Microwave Antennas - Utility-Driven Tradeoff Analysis, if you want to geto on the microwave bands , you will have to choose the proper antenna for your operating conditions. How to decide is not always easy, and you may also decide to build your own antenna.
    [ Hits: 356 | Votes: 1 | Rating: 9 ]
Antennas : Portable
  • Portable HF Antenna Options - Article on portable HF antenna where author diverge about antenna efficiency versus size based on his personal experience on using HF antennas during portable operations
    [ Hits: 174 | Votes: 2 | Rating: 4 ]
Antennas : VHF UHF
  • IAT Interactive Antenna Table - IAT is an excel sheet table evaluate parameters of VHF UHF antennas edited by Vladimir UR5EAZ. The difference between this tool and the existing VE7BQH Antenna Table is the use of G / T and C / N instead of the G / Ta parameter. In this table, Vladimir applies the ITU recommendations to assess the noise properties of a radio receiving system and shows the advantage of the G / T concept over the G / Ta concept when choosing an antenna.
    [ Hits: 104 | Votes: 4 | Rating: 9.5 ]
Manufacturers : Antennas : HF : HexBeam
  • VHQ HEX BEAM Antennas - New generation Hex Beam Antennas. VHQ HEX Products, located in Peterborough, NH, is owned and operated by David M. Lavoie. Our products are designed to solve issues encountered in Ham radio applications and move with todays configurations in an ever changing climate
    [ Hits: 252 | Votes: 0 | Rating: 0 ]
Shopping and Services : Ham Radio Stores
  • Midway Electronics - Midway Electronics supplies the area with electronic components, wire, cables, amateur radio transceivers, QRP kits, CB transceivers, GMRS radios, Shortwave radios, power supplies, antennas, coax, connector and ham radio accessories
    [ Hits: 215 | Votes: 2 | Rating: 3 ]
Shopping and Services : Regional : Europe
  • Dolstra Elektronica - Ham Radio Dealer based in Holland dealers of most relevant ham radio brands. Transceivers, antennas and accessories for amateur radio and marine radio markets.
    [ Hits: 151 | Votes: 1 | Rating: 1 ]
Software : Antenna analysis
  • AN-SOF - Professional Antenna Simulation  updated - AN-SOF is a professional comprehensive software tool for the modeling and simulation of antenna systems. AS-SOF allows to describe antenna geometry, Choose construction materials, Describe the environment and ground conditions, Describe the antenna height above ground, Analize radiation pattern and front-to-back ratio, Plot directivity and gain, Analize input impedance and VSWR,Predict antenna bandwidth
    [ Hits: 240 | Votes: 2 | Rating: 10 ]
Technical Reference : Grounding
  • How to Ground an Antenna: aerial earthing - The antenna ground or earth system can be key to its operation whilst also being a key safety feature. This article is about grounding systems for antennas, covering different aspects of grounds made for antenna safety, or expressly for lightning or just to improve antenna performance, being ground an antenna component.
    [ Hits: 230 | Votes: 1 | Rating: 4 ]

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