Balanced vs Unbalanced Feed Line. Post 2001.

If you can't see the video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=YaTCXQSu9B4.

Stan Gibilisco (W1GV) does an excellent job of explaining the pros and cons of Balanced and Unbalanced Feed Lines, or what Stan calls "symmetrical vs asymmetrical feed lines."  Each type of feed line has both advantages and drawbacks, depending on what kind of antenna you use.

For monoband use, a coaxial cable feed line is often the best solution.  However, if your antenna is designed for multiple band use, a balanced feed line such as 450 ohm ladder line, 300 ohm television twin lead, or even homemade 600 ohm balanced line used with a wide-range antenna transmatch (i.e. "tuner") is often the better choice from the standpoint of line loss and SWR.

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Aloha es 73 de Russ (KH6JRM)