Sunday, July 24, 2016

Simple Ham Radio Antennas--How to Build a 9:1 UnUn for Ham Radio Antenna. Post #845.


If you're having trouble viewing this video, please insert this title link into your browser search box: https://www.youtube.com/watch?v=mfnvqQeDLoQ.  Long wire HF antennas are great for both portable and home use if you have a good ground radial/counterpoise system and use a balun to match the antenna impedance to the impedance of your HF transceiver.  In this video, "Tinker John" (W5CYF) shows us how to make a simple 9:1 UnUn (unbalanced to unbalanced) for long or random length wire antennas.  John uses a T-130-2 core for the UnUn. John advises using thicker wire on the toroid if you plan to run more than 20 watts.  This simple, inexpensive project should only take a few hours to make.

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Aloha es 73 de Russ (KH6JRM).