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If you use certain types of Amateur/Ham Radio antennas, such as OCFs (off center fed dipoles) and "longwire" systems, a rugged 4:1 balun will make your antenna more efficient, reduce high SWR, and perhaps protect your rig from serious damage from commode mode currents riding down your coaxial feed line. This video takes you step-by-step through the design, construction, and use of this important antenna accessory.
For the latest Amateur/Ham Radio news and information, please visit these websites:
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).