Yesterday I did some improvements to the "fixed" 20m FT8 "Hulaloop" magnetic loop antenna. I've insulated the end of the capacitor coax thoroughly, by folding the braid back a bit while sealing it with shrink tubing. I also reshaped the pickup coil from oval to more circular shape. The oval shape appears to give a …
My weekend project this time was to build a cheap magnetic loop antenna. I'm talking really, really, cheap. No variable capacitor, no fancy or expensive parts. The goal was to build a monoband magnetic loop antenna. I'm tempted to call it "mono frequency" also, since there are no adjustments to it, but given the bandwidth …
Last week I bought a few cheap aluminium pipes and decided to build a discrete vertical antenna for my post stamp backyard. The goal was to make something that looks a little bit more professional than a cobweb of wires, and at the same time support the 10, 15 and 20 meter bands. If that …
My kids have a big trampoline in the backyard, and its built from a massive metal frame. In the beginning I joked about turning it into a magnetic loop antenna, but have settled with using it as a ground plane/counterweight for some antenna experiments. I've done 17m and 20m verticals with this one without problems! …
This weekend I attended the WAE CW contest as LC1R, partially because I wanted the CW practice, and a little for testing a new antenna I designed and built a couple of days ago. The contest was a poor choice for antenna testing, and this is clearly reflected in the participation. Contest QSOs could only …
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