inverted

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inverted

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Antennas : 160M
  • 160m Band Loaded Inverted L Antenna - This is a simple 160 meters antenna, a short loaded inverted L. The linear lenght is 20 meters, with the loading coil at 5 meters from the feedpoint.
    [ Hits: 320 | Votes: 1 | Rating: 7 ]
  • A 160 Meter Antenna Hybrid Design - This antenna looks like an inverted L antenna, yet it is not, it could also be viewed as a 160m off-center fed dipole antenna, it looks more like an end-fed 1/4 wave 160 meter antenna.
    [ Hits: 174 | Votes: 0 | Rating: 0 ]
  • 80m Inverted-L Base-loaded for 160m - 80m Inverted-L Antenna, Base-loaded for 160m antenna. This antenna is not a good DX antenna however within small garden where true DX antennas would be impossible it has performed very well.
    [ Hits: 122 | Votes: 1 | Rating: 10 ]
Antennas : 6M : 6 meter Yagi Antennas
  • A Loft-Yagi for Six Metres - This design makes the most of having to put an aerial in the attic. This inverted-vee yagi is giving good results at GW0GHF. Directive gain is about 6 dBd. The front-to-back ratio is not brilliant, about 20 dBd.
    [ Hits: 138 | Votes: 1 | Rating: 5 ]
Antennas : 80M
  • 80m Inverted-L 12m Spiderpole - An Inverted-L with its long leg sloping to the ground. It will still work very good, even if the horizontal wire has to be sloped diagonally to the ground, as long as you have enough horizontal space to keep it at about a 45 degree angle or more from the pole.
    [ Hits: 147 | Votes: 0 | Rating: 0 ]
  • An Antenna for 75 and 80 Meters Band - A trap antenna dipole covering two differen bands made reusing an old 160/80m inverted vee antenna.
    [ Hits: 311 | Votes: 0 | Rating: 0 ]
Antennas : Baluns Antennas : Delta loop
  • 160m Inverted Delta Loop - This 160 meter Delta Loop antenna is made of Hard drawn copper wire AWG 10, the two upper side are 148.5 foot each base wire is 240.9 foot, the feed point at 30.69 foot to one corner, feed with 450 Homs balanced line to an antenna tuner on the ground, then with 50 homs coax to the shack.
    [ Hits: 111 | Votes: 0 | Rating: 0 ]
Antennas : Dipole
  • The half-wave dipole, your first antenna - Construction tips of a basic wire antenna, the half wave dipole. Inverted V dipoles and effects of inverted v on radiation pattern.
    [ Hits: 234 | Votes: 1 | Rating: 9 ]
  • 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: 379 | 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: 108 | Votes: 0 | Rating: 0 ]
Antennas : End-Fed
  • Testing End Fed Long Wire Antenna - Testing a 27.2 metre end fed long wire antenna,used for SOTA activations placed as an inverted V. The author reports in this article an on the field practical result.
    [ Hits: 165 | Votes: 0 | Rating: 0 ]
  • G4WIF End Fed Half Wave Antenna - Opting for a visually appealing inverted L configuration, G4WIF anchors the End Fed Half Wave antenna to an old clothes line pole, seeking cost-effectiveness in their endeavor. Despite initial misconceptions about transformer components, a £7.95 investment in a T240-43 toroid and DIY mounting container resolves the issue. Reflecting on commercial alternatives, G4WIF's homemade solution proves both economical and sufficient for their amateur radio needs.
    [ Hits: 77 | Votes: 0 | Rating: 0 ]
Antennas : Multiband
  • ZS6KMD 20-40m Multiband Dipole - The dipole shown in this document is installed in an inverted Vee configuration, with two leg elements on each side held parallel to each other by 21cm spacers. The upper leg is for 40m and the lower leg for 20m. The spacers are made of 7mm plastic garden hose support for garden sprayers cut to 21cm.
    [ Hits: 524 | Votes: 0 | Rating: 0 ]
  • 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: 165 | Votes: 0 | Rating: 0 ]
Antennas : Traps
  • 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 ]
Antennas : Wire
  • Field Day Inverted L - Inverted L antenna, even if not completely freestanding, it only requires one line to be lauched into a tree to support the end of the horizontal wire. This project is done with a 31-foot Jackite pole for a support and uses six 15-foot radials and one 33-foot radial.
    [ Hits: 87 | Votes: 0 | Rating: 0 ]
Software : Antenna analysis
  • Antenna Calculation Software - The program consists of tabbed pages for various antenna and transmission line calculation. You can compute the values for an inverted L network that will allow you to match the 50 ohm output of the radio, or you can compute the necessary length in the units of choice for a 5/8 wave vertical for 10 meter band.
    [ Hits: 434 | Votes: 1 | Rating: 10 ]

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