If you can't see the video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=ftBthATNdcg. Stan Gibilisco (W1GV) does an excellent job of explaining the general theory behind "longwire antennas." This video discusses basic antenna theory, construction tips, antenna patterns, ground radial/counterpoise systems, and limitations of long wire antennas. A good, basic introduction to a versatile antenna which has been used since the beginning of the 20th century. For the latest Amateur/Ham Radio news and information, please visit these web sites: http://www.HawaiiARRL.info. http://www.arrl.org. http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday afternoon). https://oahuarrlnews.wordpress.com. https://hamradiohawaii.wordpress.com. https://bigislandarrlnews.com. https://www.eham.net. http://www.southgatearc.org. Thanks for joining us today. Aloha, Russ (KH6JRM).