hf vert antenna

hf vert antenna

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• A Simple High-Performance Vertical Antenna - This article describes the details of the design, which can be easily scaled for just about any HF band. The antenna described in this article is for the 20 meters band.
  [ Hits: 666 | Votes: 3 | Rating: 9.67 ]
• 4m Tall Vertical Dipole for 20m - Constructed in May 2008, this innovative 4m tall electrically full-size halfwave vertical dipole, tunable to multiple bands, offers HF coverage despite its space-saving design. Inspired by cost-effective DIY alternatives, the antenna design departs from conventional center-fed approaches, utilizing asymmetrical dimensions. Despite resonance challenges, the antenna's performance remains viable, boasting broad bandwidth and adaptability, as demonstrated through SWR measurements and EZNEC predictions.
  [ Hits: 93 | Votes: 0 | Rating: 0 ]

• Simple 50MHz J-Pole Antenna EA7AHG - Based on the popular DK7ZB simple 50 MHz Jpole antenna, this customized jpole project has been analized with MMANA-GAL and reproduced for six meters, two meters and 70 cm bands.
  [ Hits: 280 | Votes: 1 | Rating: 4 ]

• Quad Band Inverted V Antenna - An inverted V Dipole antenna for HF bands, working on 10 20 40 and 80 meters band. PDF Presentation
  [ Hits: 383 | Votes: 1 | Rating: 7 ]
• 160-80-40 Metre Trapped V-Dipole - A Trapped dipole inverted V antenna for lower HF Bands. Construction details are for temporary installation. Permanent installations will require additional ruggedising and waterproofing however the basic electronics concepts remain the same. This project includes SWR plots for the three bands and pictures details of the homemade traps.
  [ Hits: 109 | Votes: 0 | Rating: 0 ]

• Magnetic Loop antenna for VHF - A magnetic loop antenna for the VHF band, featuring a high gain that can be compared to a quarter wave vertical antenna
  [ Hits: 734 | Votes: 9 | Rating: 5.99 ]

• Space-Efficient Excellence: Inverted L Multi-Band HF Antenna - Discovering a solution for limited space, the inverted L HF antenna emerges as a stellar performer. Half the size of a dipole, it ensures optimal installation in restricted areas, maintaining superb transmission (TX) and reception (RX) characteristics. Spectrum Communications' multi-band version, featuring traps, proves even more space-friendly without compromising performance. A fiberglass pole offers sturdy support, while proper grounding, an RF choke, and occasional tuning contribute to a high-performing and reliable antenna system.
  [ Hits: 186 | Votes: 0 | Rating: 0 ]

• Build this Vertical Portable HF Antenna - An experimental prototype of an asymmetrical hatted vertical dipole antenna that can work on HF bands 20 to 10 meters band. The AHVD Vertical dipole is an upside-down T design
  [ Hits: 374 | Votes: 3 | Rating: 9.67 ]

• Balcony Vertical HF Antenna - The simple balcony vertical HF antenna made with plastic fishing pole. Just along the pole I install copper wire in 7 meter length. Then was installed ATU. It was used home brew tuner. For each band was used one counterpoise in length 0.8 x lambda/4
  [ Hits: 238 | Votes: 0 | Rating: 0 ]

• Variations on a Dipole - Antenna patterns are all about interference. Presentation on wire antennas for HF bands. Dipoles, horizontal and vertical dipoles, effects of ground on radiation patterns, multi-band wires antennas. Knowing what you should expect from the radiation patterns for waves on your wires will help you choose what will work best for your needs. The principles of interference can lend insight into what to expect from a wire antenna.
  [ Hits: 98 | Votes: 0 | Rating: 0 ]

• RF Trap Resonant Frequency - RF traps for a lightweight 40/30/20/17/15m inverted V dipole antenna for SOTA purposes and how you can use a modern antenna analyser to find the resonant frequency of a HF trap.
  [ Hits: 199 | Votes: 0 | Rating: 0 ]

• A 40m-10m vertical antenna with elevated radials - A multiband vertical antenna for HF bands with elevated ground radials slant down at 45 degrees and acting also as guy wires.
  [ Hits: 547 | Votes: 1 | Rating: 6 ]
• Verticals - About vertical antennas - Experiments on vertical antennas for HF bands.
  [ Hits: 249 | Votes: 0 | Rating: 0 ]
• Homebrew 5/8 Wave HF Vertical Antennas - The advantage of 5/8 wave antenna is that it has the lowest angle of radiation and has about 1dB more gain when compared to 1/4 and 1/2 verticals. So the 5/8 should be the favourite choice for DX.
  [ Hits: 714 | Votes: 2 | Rating: 8 ]

• HF Wire Antennas for Field Day - Dipole antennas, vertical half-wave dipole antennas with impedence tranformes that can be used for portable operations. Some well worn antenna configurations are the easiest and loudest lash-ups you can try.
  [ Hits: 220 | Votes: 0 | Rating: 0 ]

• A Magic Ground Mobile Antenna - Experimenting and testing vertical antenna for HF bands on mobile operations.
  [ Hits: 113 | Votes: 0 | Rating: 0 ]

• Gap Titan DX Antenna Manual - Installation and assembly instructions for the multiband HF vertical Antenna by GAP
  [ Hits: 366 | Votes: 1 | Rating: 4 ]

• Maldol MFB-300 HF vertical antenna review - The Japanese-made Maldol MFB-300 HF vertical antenna offer extremely wide-band performance, with a specified frequency range of 1.0-60 MHz.
  [ Hits: 434 | Votes: 2 | Rating: 5.5 ]

• RTL SDR with Active Antennas for HF - Experiences with software defined radios SDR and active antennas using the RTL SDR dongle and Spyverter HF up-converter
  [ Hits: 181 | Votes: 2 | Rating: 10 ]

• Transverter for 50 70 28 MHz - This multiband transverter project features power output at 13,8V 50MHz 15W, 70MHz 10W, second harmonic <65dBc. Single N connector of antenna, suitable for a dual band Yagi. Article include Block Diagram for Dual Transverter and low pass filters
  [ Hits: 153 | Votes: 1 | Rating: 10 ]

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