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Sometime in your amateur/ham radio "career" you'll run into baluns and their intricate relationship with antenna performance. A balun is a device to convert a balanced transmission line to an unbalanced transmission line and vice-versa. Baluns are vital in coaxial cable fed transmission lines, especially where long wire and off-center dipoles are concerned.
In this video from David Casler (KE0OG), Dave answers questions about baluns, how there're made, the various ratios used (such as 1:1, 4:1, 9:1 and other values), and how baluns enhance antenna performance and ultimately protect your transceiver. Dave's explanations are clear and easily understood. This video would make an excellent presentation for a club meeting or an amateur radio licensing class.
For the latest Amateur/Ham Radio news and information, please visit these web sites:
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday afternoon).
Thanks for joining us today.
Aloha es 73 de Russ (KH6JRM).