Things have been pretty hectic here at Chez Geek, but I’ve made some time this month to work on a new project. Now that the QCX Mini 20 is all fixed up, and I’m making inroads in learning CW, it’s time for a dedicated “spare” antenna.

My station has been single-antenna since I restarted radio in 2016. One long end fed random wire has been the source of all my transmissions, and now that I have the QCX Mini 20 up and running, I have really wanted a dedicated antenna so that I’d not have to take my other radio offline.

A couple of years back I built a EARCHI 9:1 Unun but never really finished it. In the following video, see how I put it in an enclosure, add another end fed to my antenna pole, learn a hilarious lesson about steel leader line, and then test the SWR in the next video. The third video shows some experimentation with a homemade capacitor that might get used in an L-Match tuner.

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