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Showing posts with the label Random Wire antennas presentation.

Random Wire antennas presentation. Post 2013.

If you can't see the video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=gUwBIG_8vTI . This expertly presented video tutorial on random wire antennas was made by Terry Snyder (WB3KBN) at the November 2018 meeting of the Harrisburg Amateur Radio Club.  Terry does an excellent job of explaining the theory and practice of using random length wire antennas, paying particular emphasis on the wire lengths "not to use."  This video would make an excellent program for your Amateur Radio Club or for an amateur radio license class. For the latest Amateur/Ham Radio news and information, please visit these websites: http://www.HawaiiARRL.info. http://www.arrl.org. http://www.blubrry.com/arrlaudionews/ https://oahuarrlnews.wordpress.com. https://hamradiohawaii.wordpress.com. https://bigislandarrlnews.com. https://www.eham.net. http://www.southgatearc.org. I've changed the URL for this website.  Although the old URL

Random Wire antennas presentation. Post 1869.

If you can't see the video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=gUwBIG_8vTI. Terry Snyder (WB3BKN) gave this excellent program at the 18 November 2018 meeting of the Harrisburg Radio Amateurs Club.  Terry covers a wide range of random wire issues, including lengths to avoid, grounding, radial systems, and feed line choices.  In addition to giving the lengths to avoid in random wire antennas, he provides a list of recommended wire lengths that should be easy to match with your antenna coupler (i.e. "tuner") and ground radial system. Although Terry's presentation is well-done and easily understandable, I've found it simpler to follow two basic practices for random wire antennas. If you're designing a wire antenna for a single band, make the wire 1/4 wavelength for your preferred frequency.  If you want 80 through 10 meter coverage, build an End Fed Half Wave (EFHW) antenna instead, using a 49:1 bal