Receive test, magnetic loop antenna for ham radio (homebrew) created out of a broken bicycle wheel/rim I found by the side of the road. (junk = new project!). Made out of that old bicycle wheel (spokes removed, and a slit cut in it with a hacksaw, with an old AM/FM variable capacitor for tuning). My calculations say no more than 4 or 5 watts should go into this for transmit. SWR measurements on my SWR meter says this is 1.0 on 15m (when tuned), and around 1.4 on 20m. Compared to my dipole up 25 feet, 15m is about the same, 20m is worse.

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