How to evaluate an antenna's performance

Discussion in 'Antennas, Feedlines, Towers & Rotors' started by K7HUT, Feb 26, 2021.

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  1. G8HUL

    G8HUL Ham Member QRZ Page

  2. KI4ZUQ

    KI4ZUQ Ham Member QRZ Page

     
  3. KI4ZUQ

    KI4ZUQ Ham Member QRZ Page

    Excellent suggestion! I went to WEBsdr.org just to see. Got a response on a site in South Carolinaabout 500-600 miles east on 5 watts in poor propagation conditions yesterday afternoon on 40 meters. That was playing with websdr for a while. Will be using this more often!
     
    K7HUT likes this.
  4. W9FL

    W9FL Ham Member QRZ Page

    You are comparing two commercially produced antennas.

    There should be data from the manufacturers, and information on the internet, books, papers, etc. where different wavelength antennas and designs are known to perform better.

    I would search the knowledge base on the internet, books etc., before I would try to perform tests on my own.

    Antenna theory is a vast field of study.
     
  5. K7HUT

    K7HUT Ham Member QRZ Page

    wow, websdr.org is amazing... another advantage of SDR I hadn't thought of.

    re the original topic, I will continue working on the field strength meter assessment of various antenna at various frequencies.
    I wonder if I can construct a better field strength meter with an SDR so that I can calibrate the RSS to an absolute received voltage level that I can use to concretely report on.
     
  6. WD4ELG

    WD4ELG Ham Member QRZ Page

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