If you can't see the video, please insert this title URL into your browser: https://m.youtube.com/watch?v=-F7KYLO4Bkg. This Royal Canadian Air Force training film does an excellent job of "demystifying" propagation for both beginning radio amateurs and experienced operators. Narration by Doug LeBlanc is good, evenly paced, and well illustrated. Despite a few minor flaws, the video is well-organized and thorough. This video would make a good radio club or license class presentation. For the latest Amateur/Ham Radio news and information, please visit these websites: 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 es 73 de Russ (KH6JRM).