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Antennas : 30M
  • K7EA 30 Meter Ground Plane Antenna - A 30 Meter Quarter Wave DIY Ground Plane Antenna that loads up nicely also on 12 and 6 meters
    [ Hits: 740 | Votes: 3 | Rating: 9.67 ]
Antennas : Antenna Calculators
  • Quick antenna length calculator - An excel spreadsheet that in a really simple way checks how much to trim your antenna elements. Download the xls file and watch the presentation video include in this page
    [ Hits: 771 | Votes: 0 | Rating: 0 ]
  • Magnetic Loop Antenna Calculator Spreadsheet - Excel spreadsheet that help calculating dimensions of a high efficiency magnetic loop antenna for HF bands. Giving in input the loop perimeter, loop diameter and loop conductor will calculate electric characteristics, bandwidth, and efficiency
    [ Hits: 1877 | Votes: 4 | Rating: 9.25 ]
Antennas : Baluns
  • UniBalun: Lightweight Balun/UnUn PCB for QRP Radios (1:1, 1:4, 1:49)  new - The UniBalun is a PCB for building a lightweight antenna transformer (Balun) or impedance converter (UnUn) for low power radios. By soldering jumpers and a toroid core, you can create a 1:1, 1:4 Balun or 1:49, 1:9 UnUn. The latest revision (1.2) includes improved pads and supports both BNC and SMA connectors. Build instructions are available for German speakers.
    [ Hits: 9 | Votes: 0 | Rating: 0 ]
Antennas : Quad
  • Shrunken 40 Meter Phased Quads - A 2 element small footprint 40 meter phased, reversible, downsized quad array antenna.
    [ Hits: 1150 | Votes: 4 | Rating: 8 ]
  • The Cubical Quad is Beautiful - An interesting page about Quad antennas. Modelling QUAD antennas, comparing quad antennas to yagi antennas. Information on QUAD Antenna tuning and home brewing with help on calculating dimensions and tuning.
    [ Hits: 2684 | Votes: 4 | Rating: 10 ]
  • Designing VHF/UHF Quad Antenna - The information in this article has come from many amateur sources, the most notable was from WA6TEY (sk 1985) Ray Frost, who was a pioneer of VHF Quad designs and one of the best Southern California Transmitter Hunters. Ray built hundreds two meter quads in single and paired configurations as well as his famous mobile radio direction finding quad.
    [ Hits: 961 | Votes: 7 | Rating: 8 ]
  • A Simple 2 Element Quad Antenna for 10 meters - Quads beams consist of 2 1 wavelength (approximately) loops, ordinarily arranged so that one is the driven element and the other is the reflector. In this project author explains how to build a two element Quad Antenna for the 28 MHz.
    [ Hits: 271 | Votes: 1 | Rating: 7 ]
Antennas : Theory
  • Designing Vertical Aerials - If you want to design vertical antennas you can find all theory and formulas used to model a vertical aerial calculating capacitance, reactance, building the inductor and calculating resistances. Includes an excel spreadsheet to calculate efficiency.
    [ Hits: 576 | Votes: 0 | Rating: 0 ]
Antennas : Tuners
  • A Homebrew Z-Match Transmatch - A home made antenna tuner based on the W6JJZ basic concept that ,atches balanced loads without the use of lossy baluns, can provide band-pass filtering and harmonic attenuation.
    [ Hits: 1099 | Votes: 0 | Rating: 0 ]
Manufacturers : QRP Kits
  • Breadboard Radio - Maker of QRP Kits, QRP CW receiver and transmitters, audio CW Filters, antenna tuners, dummy loads, and morse code practice oscillator
    [ Hits: 1311 | Votes: 1 | Rating: 10 ]
Radio Equipment : VHF-UHF Handhelds : Baofeng UV-3R
  • Baofeng Mic Pin Out and Programming Cable Schematics - Speaker Microphone Pin Out, Dual PTT Switching,Programming Cables, SMA Antenna Connection, Extended Antenna Threads for Baofeng UV 3, UV 5 Series handheld transceivers
    [ Hits: 1069 | Votes: 8 | Rating: 8.75 ]
Software : Antenna rotor control
  • Moontracker - A moon tracking software capable to drive the rotation of your antennas in azimuth and elevation
    [ Hits: 951 | Votes: 1 | Rating: 6 ]

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