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  • CQ Amateur Radio

    THE HAM NOTEBOOK

    Mar 01, 2022 5 minutes
    TEXT AND PHOTOS BY WAYNE YOSHIDA*, KH6WZ

    Weather over the last several weeks has been very cold and wet for Southern California, prompting me to hunker down and avoid the outdoors. This can be very boring, so I warmed up the soldering iron and started working on various projects cluttering up my workbench and storage area.

    One of these projects is a triplexer and bandpass filter kit so I can convert my small triband beam to work on the 10-, 15-, and 20-meter bands using three separate feedlines. This will be very useful for Field Day as well as other portable or away-from-home operating events. There are several triplexer manufacturers (check the ads or contact your favorite dealer for examples), but the item I selected is a kit, so I could have fun building my own.

    Information on the VA6AM low-power triplexer I selected is mentioned in the

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