Airspy YouLoop LF/MF/HF Möbius Receive Antenna

Discussion in 'Amateur Radio News' started by KX4O, Sep 11, 2020.

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  1. KX4O

    KX4O Ham Member QRZ Page

    Airspy YouLoop review includes:
    • Broadband small-loop background;
    • Comparison of the conventional and crossover (Möbius) approach to shielded loop design;
    • Introduction to the YouLoop;
    • Photographic study of the key feedpoint and crossover components;
    • Creation of a "groundless" receiving test system;
    • Reception observations;
    • Use of the YouLoop's modular nature to directly measure and compare the Möbius vs. conventional shielded loop.
    Dissection and testing confirm the Airspy YouLoop is a delicate, but capable broadband, electrically-small receiving loop antenna that trims component costs to a new price point while providing functional service for LF/MF/HF listening. There's no escaping Chu-Wheeler inefficiencies, but measurements suggest the Möbius crossover approach provides a benefit below 1100 kHz over a traditional gapped shielded loop. See a photographic tour of the components and testing with a groundless test jig.

  2. NF0A

    NF0A Ham Member QRZ Page


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