am antennas

am antennas

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• 40m Quagi Beam - A 7 MHz wire antenna that is a mix of a Quad and a Yagi design. This antennas are often used on VHF.
  [ Hits: 1060 | Votes: 4 | Rating: 7.75 ]

• UHF Dual Rectangle Antenna - The antenna described here is a direct-connect dual-rectangle beam for use on 70 cm between 440 and 450 MHz
  [ Hits: 956 | Votes: 3 | Rating: 6 ]

• Build your own HF balun - A balun is a MUST for dipoles or similar antennas when they are feed with coaxial cables. Many hams connect the center conductor of the coaxial cable to one side of the dipole, and the shield to the other. Wrong!
  [ Hits: 1639 | Votes: 5 | Rating: 5 ]

• Practical HF Log Periodic Antennas - This QST article describes the electrical and mechanical design process for two LPs that cover the HF bands from 10-30 MHz
  [ Hits: 912 | Votes: 1 | Rating: 5 ]

• 70cm Moxon Beam - A moxon antenna project for 70 cm band, test and results of this popular antenna model applies to UHF bands.
  [ Hits: 1733 | Votes: 9 | Rating: 6.34 ]

• NVIS Antenna Design - A presentation on designing Near-Vertical Incidence Skywave (NVIS) antennas and all related EZNEC models in a single zip file or the single presentation in PDF File
  [ Hits: 489 | Votes: 1 | Rating: 9 ]

• Asymmetrical Hatted Vertical Dipole - Theory and origins of W4RNL Asymmetrical Hatted Vertical Dipole AHVD for portable operations.
  [ Hits: 746 | Votes: 0 | Rating: 0 ]

• Shortwave Antennas - Introduction to Shortwave Antennas. Understanding Shortwave Radio Listening and Antenna Design and Construction
  [ Hits: 723 | Votes: 1 | Rating: 10 ]

• Slim Jim vs J-Pole - A comparative article on performance differences between Slim Jim antennas versus J-Pole antennas
  [ Hits: 856 | Votes: 2 | Rating: 10 ]

• Quarter Waves and Velocity Factor - Coax Velocity Factor in Baluns, Does it Matter? Test results show coaxial cable velocity factor does not always enter into stub length calculations especially in the world of Baluns
  [ Hits: 208 | Votes: 0 | Rating: 0 ]

• Ground plane for 144, 222 and 440 MHz - Here we have a ground plane antenna mostly used for 144, 222, 440 Mhz. Its one of the simplest antennas to make. New hams can build this with little to no experience in antenna building.
  [ Hits: 1262 | Votes: 10 | Rating: 5.7 ]

• Ultimax Antennas Inc - Ultimax antennas manufacturer of amateur radio End-Fed and bazooka antennas made in USA
  [ Hits: 260 | Votes: 1 | Rating: 1 ]
• JK Antennas - US amateur radio antenna manufacturer, design and build monoband, dual band and multiband Yagi Antennas for HF bands as well as receive antenna systems
  [ Hits: 727 | Votes: 1 | Rating: 10 ]

• Antenna Europe - Antenna Europe is an Lithuanian ham radio HF antenna manufactured specialized in Quad Antennas. Makers of Cubical Quad Antennas, Yagi Antennas, Antenna switches, Transformers and Robinzon Antennas
  [ Hits: 1277 | Votes: 1 | Rating: 1 ]

• HF Antennas for Beginners - 30 Meters and Below - An interesting article for beginners that guide new hams to find what kind of antenna to install, evaluating wire aerials, commercial verticals and how to setup antennas in restricted lots
  [ Hits: 854 | Votes: 1 | Rating: 4 ]

• Fun and Games with the Spiderbeam 18 Meter Pole - A portable operation experience with a SpiderBeam pole during a contest, testing wire antennas, like dipole and delta loops configurations on 20 40 and 80 meters band.
  [ Hits: 313 | Votes: 1 | Rating: 10 ]

• Transverters-Store - Transverters-Store is a online shop for low cost transverter boards, but also QRP transceivers, Active antennas, RF bridge and probes, Mic equalizers and other amateur radio accessories
  [ Hits: 694 | Votes: 3 | Rating: 5.67 ]

• DUAL - Antenna and ham equipment manufacturer in Serbia. The Dual company has been producing antennas for more than 25 years focusing on wide bandwidth, designs that work equally well in all weather conditions, very low SWR and superior G/T, F/B and F/S ratios
  [ Hits: 400 | Votes: 2 | Rating: 6 ]

• Big Signal - Amateur Radio HF Cubical Quad and Delta Loop antennas manufacturer based in Spain
  [ Hits: 1053 | Votes: 0 | Rating: 0 ]

• G Whip Antenna Products - British ham radio antenna products manufacturer, base and portable antennas, mobile antennas, baluns, masts, production is mostly based on wire and whip antennas
  [ Hits: 402 | Votes: 0 | Rating: 0 ]

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