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• The 160M Homebrew Vertical - The 160M "No Excuses" Homebrew Vertical is a 27 ft. vertical antenna, made from three 10 ft. PVC sections bolted together, and half wavelength of antenna wire helically wound around the PVC sections by K6MM
  [ Hits: 6587 | Votes: 15 | Rating: 6.14 ]
• A Potpourri of 160-Meter Verticals - A potpourri of 160-Meter vertical antennas and modeling issues, inverted-L, 3-element parasitic array, 1/4-wavelength monopole
  [ Hits: 3649 | Votes: 0 | Rating: 0 ]

• JA7KPI Windom antenna for 40-80 - The total length of this antenna is 41m, height is about 11m, and diameter of element is 2mm. JA7KPI modified this antenna originally used as Inverted-V type of 80m band Dipole. Works on 40 - 80 meters band with acceptable swr.
  [ Hits: 7715 | Votes: 8 | Rating: 6.25 ]

• A 1:1 Coaxial Balun  ^pop - PDF article about a coaxial 1:1 balun, original concept by I4BBE using a quarter-wavelength and the three-quarter-wave adapting sections with the 50-Ohm coaxial cable by I0QM
  [ Hits: 44472 | Votes: 30 | Rating: 7.22 ]
• A Cost Effective Current-mode 1:1 Balun - A cost effective current-mode 1:1 balun can be constructed from a length of coax and a rod typically used for a broadcast antenna loop-stick, some electrical tape, cable ties, a length of PVC water-pipe and some connectors.
  [ Hits: 9193 | Votes: 4 | Rating: 7.25 ]

• The Guanella 1:4 balun - A cost effective current-mode 1:4 balun can be constructed from two lengths of coax, two ferrite rods, some electrical tape, cable ties, a length of PVC water-pipe and some connectors. This form of 1:4 current-mode balun is named after G. Guanella.
  [ Hits: 3636 | Votes: 1 | Rating: 10 ]

• Coax Dipole Calculator - An efficient program to calculate dimensions of coax dipoles, or bazooka antennas considering velocity length of different coax cables. Express dimensions in feet/inch and meters/cm. Freeware by VE3SQB
  [ Hits: 17578 | Votes: 74 | Rating: 5.31 ]

• Design your Own Super J Pole - Javascript for calculating the lengths of tubing to be used for the construction of a Super J-Pole in a collinear design
  [ Hits: 18245 | Votes: 36 | Rating: 6.71 ]

• Inverted Vee monoband antenna - This project will enable you to build a monoband long wire inverted vee with 3/4 wave length sides that will have a bit of gain
  [ Hits: 2263 | Votes: 1 | Rating: 10 ]
• How to make a Simple Dipole Antenna - It is very easy to create a simple 1/2 wave dipole, all you need is some lengths of wire such as the core of some mains flex or even a straightened out metal coat hanger, some co-ax cable and a connector for your scanners antenna input
  [ Hits: 4057 | Votes: 7 | Rating: 6.71 ]

• AA3RL Transmission Line Calculator - Excel spreasheet that calculate virtually every transmission line parameter that one may need. Include Length conversions, Reactance and Length of Stubs
  [ Hits: 5336 | Votes: 16 | Rating: 6.88 ]

• Radial System Design - Are the lengths of antenna radials related to the height of a vertical? By N6LF
  [ Hits: 859 | Votes: 1 | Rating: 5 ]

• Super J-Pole for 435MHz - The Super J Pole antenna is a co-linear vertical consisting of a number of half wave length vertical elements separated with half-wave length stubs (Tuning stub) feed with a folded matching stub by vk6ysf
  [ Hits: 3370 | Votes: 6 | Rating: 5 ]

• The Lindenblad antenna - The ultimate satellite Omni Antenna by Howard Sodja, W6SHP. The Lindenblad antenna consists of four half wave folded dipoles slanted 30 degrees to the horizon, oriented 90 degrees to each other in azimuth, spaced 0.3 wavelength apart
  [ Hits: 3724 | Votes: 6 | Rating: 7.67 ]

• Length of a Resonant Square Quad Loop - Calculating the length of a resonant square quad loop
  [ Hits: 1033 | Votes: 1 | Rating: 10 ]

• Quarter Wave Verticals - One of the most useful antennas in the repertoire is the Marconi or quarter wave grounded vertical antenna. Its invention made it possible to halve the length of antennas, simplifying communications, especially at HF and below.
  [ Hits: 1761 | Votes: 2 | Rating: 7 ]

• CoaxTrap - This program let you design of antenna trap using length of coaxial line wound as solenoid on a coil former.
  [ Hits: 5525 | Votes: 10 | Rating: 3.7 ]

• Balloon-supported verticals - Using balloons to raise lengths of wire can be great fun - as well as making it possible to work the DX on 136 kHz from small gardens.
  [ Hits: 1803 | Votes: 1 | Rating: 10 ]

• Windom Antenna with 4:1 balun - The Windom is an Off-center wire multiband Antenna. The old version was fed just by a single-wire connected on 1/3 of antenna's overall length or with an open-line feeder (later versions). Here is another model with coaxial feeder, which is compatible with Solid States - 50 Ohm output transceivers .
  [ Hits: 8027 | Votes: 9 | Rating: 6.89 ]

• Troubleshooting Traps - This article refers mainly to the old Cushcraft 1/4 wavelength AV series of antennas (12AVQ, 14AVQ etc) hence the references to radials. The R series (R5, R7 etc) are 1/2 wavelength antennas, and the radials are NOT 1/4 wavelength resonant.
  [ Hits: 2777 | Votes: 0 | Rating: 0 ]

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