Success! 20m and 40m on same element - Amazing Result!

Описание к видео Success! 20m and 40m on same element - Amazing Result!

The placement of a coil on an element affects the third harmonic. If you can work out exactly where to put this coil, we can then force a harmonic on almost any band you like. In this example we have made a compact 40m antenna of only 6.5m long and then made 20m to work on the third harmonic with very little loss. See what you think. Callum.

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