If you can't see this video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=EXD9rAOM_o4. If you use a "long" or "random length" wire for your HF antenna, you'll probably need a simple antenna transmatch (i.e. "tuner") to reduce SWR and RFI caused by the mismatch between your antenna and your transceiver. In this well-produced video, Kevin Loughin (KB9RLW) takes us step-by-step in the design, construction, and use of a simple L tuner for random length wire antennas. This basic impedance transformer can be used at home and for field operations. Views expressed in this video are those of KB9RLW. 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://hamradiohawaii.wordpress.com. https://bigislandarrlnews.com.