• [DXZone] Corned Fed Delta Loop

    From DXZone via rec.radio.info Admin@21:1/5 to All on Fri Jun 3 02:33:01 2022
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    The DXZone.com Amateur Radio Internet Guide

    Corned Fed Delta Loop


    Antennas/Delta loop
    Author found a ratio between the lengths of the sides of the Delta Loop
    that give reasonably low SWR into a 50 ohm coaxial cable almost independent
    of the high above ground and other surroundings. This ratio also gives good results no matter orientation. Includes an online delta loop antenna calculator.

    IC-7300 Bluetooth Support


    Radio Equipment/HF Transceivers/Icom IC-7300
    It is possible to add a very small Bluetooth transmitter to the 3.5mm
    headphone jack and then use a pair of Bluetooth headphones around the
    shack. In this article Author provides some tips on choosing the proper Bluetooth interface.

    The Quarter-wave stub


    Antennas/Feed Lines/Coax Stubs
    The Quarter-wave stub can be used for many purposes. If it is left with an
    open end it can be used as a notch filter to attenuate certain frequencies.
    A quarter wave length of a transmission line can also be used as an
    impedance transformer, to know more about the Quarter-wave impedance transformer

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