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Here's another great video tutorial from Ray of "The Radio Workshop." In this video, Ray makes strong case for the use of balanced feed lines for multiband HF doublet antennas. Ray says "the best thing I did for my HF operation was to ditch coax and not worry about the SWR." With a suitable length of 300 ohm television twin lead or 450 ohm ladder line, an antenna transmatch (i.e. "tuner") and a current balun (usually a 4:1 configuration), you can cover all HF Amateur Radio bands with one antenna. Just design the doublet for the lowest band of interest and you can use that band and any other HF band above your design frequency for multiband operations. Ray's instructions are clear and easy to follow.
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Views expressed in this video are those of "The Radio Workshop" unless otherwise stated.
Thanks for joining us today.
Aloha es 73 de Russ (KH6JRM).