hi q antennas

hi q antennas

Pages: [prev] 1 2 3 4 5 6 7 8 9 [next]

• A 70cm Big Wheel Antenna - This is a 70cm big wheel antenna which is used at DB0FAI beacon
  [ Hits: 3041 | Votes: 4 | Rating: 4.75 ]

• Magnetic longwire baluns 1:9 - This Magnetic Longwire Balun (MLB) makes it possible to efficiently use a coaxial lead-in cable with all forms of longwires, T-forms or other types of wire antennas, without the need for an antenna tuner.
  [ Hits: 3584 | Votes: 4 | Rating: 6.75 ]
• QRO baluns - Construct your own heavy-duty baluns capable of matching your amp's output to various antennas.
  [ Hits: 1033 | Votes: 0 | Rating: 0 ]

• Microvert antennas by DL7PE - Progress in Design of Extremely Short Transmitting Antennas Short and still efficient, how is that possible? By Juergen Schaefer, DL7PE author of the MicroVert antenna concept. The MicroVert introduced in this document is an extremely short and hardly visible short-wave antenna with outstanding radiation properties
  [ Hits: 1951 | Votes: 5 | Rating: 7.5 ]

• Homebrew RF chocke - Magnetic Longwire Balun - RF Choke to prevent hf currents on the feedline. This Magnetic Longwire Balun (MLB) makes it possible to efficiently use a coaxial lead-in cable with all forms of longwires, T-forms or other types of wire antennas, without the need for an antenna tuner.
  [ Hits: 3415 | Votes: 3 | Rating: 10 ]

• Helical Antennas - The Helical antenna description, a simple way of obtaining high-gain and a broad band of frequency characteristics
  [ Hits: 1343 | Votes: 1 | Rating: 10 ]

• Coaxial antennas - G3TXQ study on coaxial cable demonstrate that it can reduce an element's length by something approaching the Velocity Factor of the cable
  [ Hits: 1290 | Votes: 1 | Rating: 10 ]
• Home-brew Antennas - Notes on homebrewing antennas by Chris G4CYA, from gamma matching, to phasing antennas, splitters and combiners, baluns and measuring techniques.
  [ Hits: 3155 | Votes: 1 | Rating: 10 ]
• Recycling TV Antennas for 2-Meter Use - Green that aluminum into something useful right in your own backyard by WB2CQM
  [ Hits: 1126 | Votes: 1 | Rating: 8 ]

• DL7JV Magnetic Antennas - DL7JV Christian report his direct experience on magnetic antennas
  [ Hits: 1032 | Votes: 0 | Rating: 0 ]

• Homebrew Kites - This article by Seabury Lyon, AA1MY describe how homebrew kits for amateur radio pourposes, in order to support wire antennas
  [ Hits: 1103 | Votes: 1 | Rating: 10 ]

• The Versatile Vee Beam - An aerial that you can use on all eight High Frequency amateur bands (80, 40, 30, 20, 17, 15, 12 and 10m) with an antenna tuner, and which gives significant gain on the five bands from 20 m to 10 m
  [ Hits: 1724 | Votes: 3 | Rating: 10 ]

• The Petlowany Principle - Spipral antenna principle by a concept of Bill Petlowany, K6NO. Tak Antennas are based on this principle, using spirals as dipole linear wires.
  [ Hits: 864 | Votes: 1 | Rating: 10 ]

• X-QUAD Antennas - The X-Quad is an improved development of the well-known multi-element quad. Switchable polarization, high gain 2 m and 70 cm antenna
  [ Hits: 1307 | Votes: 5 | Rating: 5.6 ]

• I0JXX - The I0JXX is an italian company that offers market their projects, also sells electronic products of high quality, both for Ham, both Broadcast and their accessories. VHF Antennas, mosfet power amplifiers, filters, insulators, power dividers, telescopic poles, antenna masts
  [ Hits: 2882 | Votes: 2 | Rating: 8.5 ]

• ROLCON RF Systems - High quality VHF/UHF Yagi (directional) antennas
  [ Hits: 1064 | Votes: 0 | Rating: 0 ]

• Tecom - Tecom industries product line encompasses a wide range of highly sensitive active and passive antennas for use in airborne and ground applications, providing complete coverage of the 20 MHz to 40 GHz frequency range.
  [ Hits: 355 | Votes: 0 | Rating: 0 ]

• LBA Technology - LBA - DTV & RF test systems; AM antennas; RF shielding; RF compliance, safety, interference, intermodulation services; AM detuning, Antenna SWR Analyzers
  [ Hits: 688 | Votes: 1 | Rating: 7 ]

• Small Antennas for High Frequencies - This is about Small Antenna types and their properties which can help choosing proper antenna for high-frequency wireless communications as: two-way radio, microwave short links, repeaters, radio beacons or wireless telemetry
  [ Hits: 723 | Votes: 2 | Rating: 6 ]

• Tri-Mode Buffer Amplifier Box - The TMB-1 is an RF amplifier unit / receiving accessory that can be used with a low-impedance broadband loop, a high-impedance terminated loop (such as a Pennant, Flag, or Kaz Delta), and whip (telescoping rod) antennas.
  [ Hits: 964 | Votes: 1 | Rating: 1 ]

Pages: [prev] 1 2 3 4 5 6 7 8 9 [next]