feedline

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feedline

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Antennas : 4M Antennas : Baluns
  • HF Home made Balun  pop - A balun is a device that is used at the feedpoint of a balanced antenna when an unbalanced feedline is desired to feed the antenna. Balun is a contraction for BALanced to UNbalanced.
    [ Hits: 38703 | Votes: 28 | Rating: 5.76 ]
Antennas : Baluns : 4 to 1 balun
  • 1:4 Current Balun - This project is intended to aid in tuning a balanced antenna or feedline that has a high impedance 100-600 ohms by N5ESE
    [ Hits: 3229 | Votes: 5 | Rating: 8 ]
Antennas : Bazooka
  • The Double Bazooka Antenna - The Double Bazooka Dipole is a very efficient single band antenna which is very quite, and does not require the use of a balun. This antenna consists of coax (RG58) or other 50 ohm type with the shield split at the center and the feedline attached to the open ends
    [ Hits: 7947 | Votes: 4 | Rating: 8.25 ]
Antennas : Dipole
  • K7MEM Center-Fed Half-Wave Dipole ( 3-30 MHz) - A Center-Fed Half-Wave Dipole is probably the simplest of antennas to construct and use. It is usually suspended between two supports, from it's end insulators, and has the feedline hanging from the center.
    [ Hits: 3332 | Votes: 11 | Rating: 6.27 ]
  • Center feed insulator - A center antenna insulator with feedline strain relief
    [ Hits: 1551 | Votes: 1 | Rating: 9 ]
Antennas : End-Fed
  • Resonant Feedline Dipole - Experiences with the end-fed dipole based on the concepts presented by J. Taylor in an article titled RFD-1 and RFD-2: Resonant Feed-Line Dipoles in QST. August 1991.
    [ Hits: 558 | Votes: 0 | Rating: 0 ]
Antennas : Feed Lines
  • Transmission Lines - Whenever you choose a coax feedline, the frequency of operation is a very important consideration. Over the operating bandwidth of the coax the VSWR is low, typically 1.2:1 or better. Insertion loss is also an important parameter. It is usually specified in dB/foot and is a linear relationship.
    [ Hits: 1199 | Votes: 0 | Rating: 0 ]
  • Better Feedline Loss Measurements with Antenna Analyzers - Various publications through the years have shown how the SWR measured on a shorted (or open) feed line can be used to calculate feed line attenuation
    [ Hits: 1670 | Votes: 2 | Rating: 10 ]
  • Twin Feed experiment - Experimenting a low impedance feedline by G3TXQ
    [ Hits: 280 | Votes: 0 | Rating: 0 ]
  • Preventing Feedline Radiation - How to handle feedline radiation issues
    [ Hits: 258 | Votes: 0 | Rating: 0 ]
  • Anatomy of an Antenna Feedline - How to setup a proper antenna feed line with a particular attention to RFI by K0GKJ
    [ Hits: 417 | Votes: 0 | Rating: 0 ]
Antennas : Feed Lines : Choke
  • Homebew RF chocke - RF Choke to prevent hf currents on the feedline
    [ Hits: 3136 | Votes: 3 | Rating: 10 ]
  • RF choke or 1:1 balun - RF Choke to prevent hf currents on the feedline or...1:1 Choke Balun, sometimes called the "UGLY BALUN"
    [ Hits: 3012 | Votes: 5 | Rating: 2.6 ]
Antennas : Feed Lines : Open Wire
  • Open-wire Feedline - Homebrew Light-weight Open-wire feedline for Portable Ops by N5ESE
    [ Hits: 1072 | Votes: 0 | Rating: 0 ]
Antennas : G5RV
  • Low reactance multiband center feed wires - An antenna system is more easily interfaced to a radio when the input reactance at the feedline terminals is low or close to series resonance
    [ Hits: 2916 | Votes: 5 | Rating: 8.8 ]
Antennas : Quad
  • Assembly of the Lightningbolt Quad - One of the best antenna values on the market is the LightningBolt Quad. At about half the cost of a tri-band yagi, you get five band coverage with a single coax feedline and excellent performance from a light, low wind load antenna.
    [ Hits: 3580 | Votes: 10 | Rating: 6.8 ]
Antennas : Resonant Feedline Dipole Antennas : Tuners
  • N4EKV.COM - Antenna Tuners - Homebrew balanced-L antenna tuner. Covers 160-10m. Designed specifically for balanced feedlines.
    [ Hits: 4600 | Votes: 2 | Rating: 10 ]

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