If you use a random length end-fed wire antenna, you'll find this simple L Network "antenna tuner" from Kevin Loughin (KB9RLW) a useful accessory for your antenna experiments.
Kevin takes us step-by-step through the design, testing, and use procedures for this basic antenna tool.
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This is post 2736 in a continuing series of simple ham radio antennas.
Here are some comments from Kevin:
Thanks for joining us today.
Aloha es 73 de Russ (KH6JRM).