A Super-Duper Tiny 3D-Printed HF Radio Antenna


If you enjoy building end-fed halfwave antennas, then this simple project from Gil ("Radio Prepper") will prove most useful.

In this video, Gil shows us how to build a 64:1 transformer for end-fed halfwave antennas.  The process will go faster if you have access to a 3D Printer.

If you can't see the video, please insert this title URL into your browser search box:  https://www.youtube.com/watch?v=6er591dwtl0

Here are some comments from Gil:

Yes really! The Half-Wave End-Fed is my favorite antenna and for good reasons. Here I build a very small 64:1 transformer in a 3D-printed case, with a description of the design. Worth watching until the end ;-) Note that a 64:1 is better for lower bands, say 30m and below, while a 49:1 is better for upper bands. With such a small toroid, better use three turns primary for either, otherwise, for an FT-140-43 or bigger, if you want to go up to 6m, use two turns primary (14 total). https://www.buymeacoffee.com/gilg 3D file: https://www.thingiverse.com/thing:463... HWEF antennas: https://youtu.be/0zF7bDoqkG4 Artillery Genius: https://www.banggood.com/custlink/3Km... Creality Ender V3: https://www.banggood.com/custlink/GvG... Shirts and mugs: https://teespring.com/stores/radio-pr... Help this channel: https://www.patreon.com/radioprepper Facebook: https://www.facebook.com/groups/radio... Radio Preppers Forum: http://radiopreppers.com DISCLAIMER: The Radio Prepper logo (depicting a microphone) is indeed inspired from a famous flag created in 1775. It is NOTHING BUT a symbol of freedom and independence. It does NOT imply support to any political group. It does NOT imply, represent nor support any ideology with an intent on harming anyone. Freedom means freedom from persecution based on any human trait or belief such as, non exhaustively, race, gender, religion, sexual orientation or nationality. The Radio Prepper channel is a technology and science channel with a focus on preparedness and use of radio technology for disaster relief and small group communications in times of need. It is apolitical and open to anyone sharing the same interests. . Subscribe to my alternate platforms: https://ugetube.com/@RadioPrepper https://odysee.com/@RadioPrepper:d oops, wrong address! Correct one below: https://odysee.com/@RadioPrepper:d Now you can buy me a coffee :-) https://www.buymeacoffee.com/gilg . Send Bitcoins to: bc1qc5jq4dxt7359sh80lkv9v8rlsgnh322hmn6xyc Send Ethereum : 0xe7cC2e415E0D2d1De91604B2b693f124dfBCf9B8 Send Litecoin : LYwDy55mZSeb1Czx6JUiTS5YkqjfmWKK5H

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Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).
 

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