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Gary @N8DMT

HC33S Build an antenna and make a contact with it.
@hamchallenge
Built a 2m halo horizontally polarized loop antenna to try to make local 2m SSB contacts. Referred to KP4MD’s QSL webpage on halo antennas. Used #14 solid wire and a SO-239 connector. Tuned match point with NanoVNA-H4 to get close then tweaked wire-ends spacing to be even better. This is not an outside antenna in current form. Completed a quick FM test QSO with W9ELG in Elgin, IL.

Photo of NanoVNA-H4 measuring VSWR of the DIY 2 meter Halo antenna. VSWR is 1.36:1 at 144.200 MHz fed with a 12 foot length of RG-58C coax.
Holding overhead photograph of the DIY 2 meter Halo antenna. Antenna is about 12 inches in diameter.
Another photograph of the DIY 2m Halo antenna constructed from #14 house wire.
Photograph showing details of the feed and matching. Wire ends are separated by about 1/4" and held in place with a cut-off zip tie length with additional zip ties holding the wire to the separator.
Mar 17, 2025, 07:33 PM·Public·Mastonaut
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