• [DXZone] Top Amateur Radio Websites - Issue 2126

    From DXZone via rec.radio.info Admin@21:1/5 to All on Sat Jul 10 04:44:26 2021
    XPost: rec.radio.info

    The DXZone.com Amateur Radio Internet Guide

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    Top Amateur Radio Websites - Issue 2126

    Posted:
    https://www.dxzone.com/top-amateur-radio-websites-issue-2126

    Practical Amateur Radio Grounding, How to Ground an Antenna: aerial
    earthing, 6 meter portable antenna, Electronic Ionosonde to Monitor the Ionosphere , History of the Hexbeam Antennas, 43 Elements Yagi Antenna for
    23cm band, HexBeam Antenna Explained,

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    Common-mode chokes Measurements

    Posted:
    https://www.dxzone.com/dx34457/common-mode-chokes-measurements.html

    Technical Reference/Radio Frequency Interference/Noise Reduction
    Common-mode chokes are useful solutions for RFI reduction. Winding a few
    turns of coaxial cable on the FT 240-31 toroid can reduced the noise below
    the received noise floor. In this article author measure different chokes

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