Hentenna Projects

DIY high-gain loop antennas for amateur radio operators

A hentenna is an asymmetrical double rectangle loop antenna used by radio amateurs for high-gain and directional signal reception. Originally designed by Japanese hams, hentennas are popular for their compact size and efficiency in transmitting and receiving radio signals. Hentennas can be constructed using copper pipes or other materials for various frequency bands like 6 meters, 2 meters, and more. These antennas are valued for their simplicity, portability, and effectiveness in amateur radio communication.
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  • DK7ZB hentenna
    Descriptions for 144-MHz- , 70 MHz- and 50-MHz-Reflector-Hentennas
  • ForkTenna
    A half-sized Hentenna designed for unique performance in compact spaces. Initially built in 2003 for monitoring a local 146.97 MHz repeater from a basement shop, the antenna proved highly effective, operating at just 200mW. In 2005, it was adapted for use in a challenging river-bottom location, delivering reliable performance on a 2-meter band with 5W. Despite its compact size, the Forktenna demonstrated excellent results compared to a full-sized Hentenna, making it an intriguing option for many hams.
  • Hentenna for 2 Meters
    A copper pipe Hentenna for 144 MHz. The Hentenna, a compact, high-gain loop antenna developed in Japan in the 1970s, offers approximately 5.1 dBd gain, comparable to a three-element Yagi. Adapted for 2 meters, it is crafted from copper pipe for simplicity, affordability, and broadband performance. Requiring no feed-point tuning, its construction involves soldering standard copper fittings. Installation demands non-conductive materials to minimize signal disruption. Versatile for vertical or horizontal polarization, it is ideal for FM, repeater, SSB, or CW applications. This design emphasizes practicality and performance for amateur radio enthusiasts

  • DK7ZB hentenna

    • Descriptions for 144-MHz- , 70 MHz- and 50-MHz-Reflector-Hentennas
    Hits: 3811 | Votes: 24 | Rating: 8.66

  • ForkTenna

    • A half sized Hentenna designed for unique performance in compact spaces Initially built in 2003 ...
    By: WA0ITP Hits: 2333 | Votes: 9 | Rating: 8.67

  • Hentenna

    • The Hentenna is an Asymmetrical Double Rectangle ADR Loop Antenna originally designed by Japanese Hams ...
    By: Jean Hits: 360 | Votes: 2 | Rating: 10

  • Hentenna An ADR Antenna

    • Provides a comprehensive overview of the Hentenna design construction methods using aluminum tubing and discusses ...
    By: VU3NSH Hits: 49

  • Hentenna by IW3HZX

    • Hentenna plans and pictutes for HF and VHF UHF Bands in italian by IW3HZX ...
    Hits: 1703 | Votes: 2 | Rating: 4.5

  • Hentenna for 2 Meters

    • A copper pipe Hentenna for 144 MHz The Hentenna a compact high gain loop antenna ...
    By: WA0ITP Hits: 2199 | Votes: 10 | Rating: 5.9

  • Hentenna revisited

    • Developed by Japanese 6 Meter Hams in the 1970 s can be designed and built ...
    Hits: 2163

  • Hentenna with reflector

    • Explores the addition of a reflector to the traditional Hentenna design for 6m band providing ...
    By: ON8IM Hits: 38

  • K5USS 6 Meter Hentenna Project

    • The K5USS 6 Meter Hentenna Project page on Hamuniverse provides detailed instructions on how to ...
    By: K5USS Hits: 36

  • Six meter Hentenna

    • An Hentenna project for the six meters band The standard size of standard hentenna is ...
    By: JR1LZK Hits: 250 | Votes: 2 | Rating: 5
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