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HF Beams


All practical antennas have some directivity -- putting out more power in some directions than others.  Ideally, you would like to put power out (and receive from) only in the direction toward the station you're talking to.  A "beam" antenna, designed for directivity, can increase your signal by 1 S-unit (6 dB) or more, receiving and transmitting.


Web Links

  • KB0YKI's Radio Zone
    On-line antenna designers, rooftop tower plans, gamma matches, and more
  • K5TR
    A collection of antenna modeling files
  • Yagi Antenna Design
    This site offers a free interactive design page to let hams design Yagi antennas for HF, VHF and UHF