coaxial dipole

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coaxial dipole

20 links

Antennas : 15M

  • DX Dual Dipole  pop - Two dipoles fed from the same coaxial line by n6bz for 20 and 15 meters
    [ Hits: 31090 | Votes: 18 | Rating: 4.1 ]
Antennas : 20M : 20 meter Dipole Antennas
  • Coaxial-Cable Trap Dipole  pop - An Attic Coaxial-Cable trap dipole for 10, 15, 20, 30, 40, and 80 meters
    [ Hits: 145717 | Votes: 192 | Rating: 6.46 ]
Antennas : 2M
  • VHF Coax Dipole - A simple coax dipole antenna for 144 MHz by 9A7PJT
    [ Hits: 1084 | Votes: 1 | Rating: 1 ]
  • Squarooka Antenna - squared bazooka for 2 meters band - Sort of similar to the one of the 6m omni. Instead of using twin-lead, this design makes use of a more or less regular double bazooka antenna (coaxial dipole). Your attention shall be drawn to the available standart literature, such as Rothammel. In order to "compute" the dimension, Karl Rothammel mentioned that the total length of the dipole shall be 95% of the free-space wavelength. The short-circuit bridges (closing the folded dipole) are to be placed at a distance-fraction being equal to the velocity factor of the coax cable used, which will be 66% using RG-58 or RG174.
    [ Hits: 179 | Votes: 0 | Rating: 0 ]
Antennas : 30M Antennas : 4M
  • A Coax dipole for 4 m - This center-fed coaxial dipole for 4 mters feature low-cost components, Easy to set-up - nothing to adjust and no metalwork required, with only four soldered joints
    [ Hits: 352 | Votes: 1 | Rating: 10 ]
Antennas : 6M
  • 50 MHz Coax Dipole - SOTA 6m 52 MHz Coaxial Dipole Antenna based on the vertical coaxial dipole named the Flowerpot Antenna
    [ Hits: 780 | Votes: 5 | Rating: 9.6 ]
Antennas : 70cm
  • Bazooka dipole for 70 cm band - Here is a very simple 70cms dipole from Harald PD2HFE, which uses a single piece of RG-213 coaxial cable 34 cms in length.
    [ Hits: 14355 | Votes: 22 | Rating: 7.24 ]
Antennas : 80M
  • Switchable Antenna 80/160 meters band - A switchable antenna for 80/160 meters by IK1ZOY. A new version of a 1/4L 80 m. dipole modified for use in 160 m. band. using it's own coaxial cable feeder to wrap a coil.
    [ Hits: 16574 | Votes: 6 | Rating: 5.5 ]
Antennas : Baluns
  • 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: 1399 | Votes: 2 | Rating: 9.5 ]
Antennas : Bazooka
  • Double bazooka coaxial dipole antenna  pop - From WH2T Dr Ace's Double Bazooka Coaxial Dipole
    [ Hits: 47406 | Votes: 56 | Rating: 5.65 ]
  • Build a Double Bazooka HF antenna  pop - Build a double bazooka coaxial dipole, broad-band dipole antenna
    [ Hits: 32377 | Votes: 23 | Rating: 5.3 ]
  • The Broadband Double-Bazooka - The Broadband Double-Bazooka Antenna- How Broad Is It? Adapted from Technical Correspondence, QST, September 1976, the increasing interest in using the coaxial dipole via W2DU
    [ Hits: 4887 | Votes: 2 | Rating: 6.5 ]
  • Coax Bazooka type antenna - 2 metre and 70 cm Coaxial Dipoles, Double Bazooka type
    [ Hits: 2959 | Votes: 3 | Rating: 7 ]
Antennas : Dipole
  • Build a hanging dipole for 2 metres - Described here is a simple omni-directional, vertically-polarized dipole for two meters. Made from coaxial cable, it can be rolled up and stored in a small container
    [ Hits: 5157 | Votes: 3 | Rating: 8.33 ]
  • An Improved Multiband Trap Dipole Antenna - This improved multiband trap dipole introduces a new trap design and a change in trap location. The antenna features double-coaxial-cable-wound traps having lower reactance and a higher quality factor (Q) than earlier coax-cable traps by W8NX
    [ Hits: 8336 | Votes: 5 | Rating: 6 ]
  • 50 Ohm Coaxial Dipole - This dipole is composed by a coaxial structure and non-folded dipole made from two open conductive cylinders, and benefits from the stub compensation of a folded dipole by passing an insulated wire through the axis and connecting it to the ends of both limbs. By G4CQM
    [ Hits: 484 | Votes: 0 | Rating: 0 ]
Antennas : Feed Lines
  • Feeder Radiation  updated - Connecting centre fed antennas, dipoles, yagis, rhombics, loops to coaxial cable, unless care is taken, it is not difficult to end up with feeder radiation resulting in power loss and the radiation characteristics changes
    [ Hits: 1677 | Votes: 4 | Rating: 8 ]
Antennas : Theory Antennas : VHF UHF
  • VHF UHF Coaxial Dipole Antenna - A base station antenna you can easily build for 146,220 or 440 MHz, with performance similar to a J-pole but smaller and less obstrusive
    [ Hits: 1912 | Votes: 8 | Rating: 6.51 ]

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