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General Radio Discussion / Re: Antenna wire, get your cheap antenna wire
« on: July 11, 2020, 2203 UTC »
Have used THHN building wire for antennas for years (mostly because of its availability)
in spite of speculation that the annealed copper will stretch and possibly fail.
Have never had that problem... the antennas survived years of ice and wind storms.
If you use insulated stranded THHN wire outdoors, be sure to seal the exposed ends from water.
You would be amazed at how well water will wick the length of an antenna and corrode it from within
so for that reason, solid THHN is the better way to go.
Be aware that the NEC requires hard drawn copper or copper clad steel for antenna wires.
In any case, NEVER run a wire antenna over or under a power line.
in spite of speculation that the annealed copper will stretch and possibly fail.
Have never had that problem... the antennas survived years of ice and wind storms.
If you use insulated stranded THHN wire outdoors, be sure to seal the exposed ends from water.
You would be amazed at how well water will wick the length of an antenna and corrode it from within
so for that reason, solid THHN is the better way to go.
Be aware that the NEC requires hard drawn copper or copper clad steel for antenna wires.
In any case, NEVER run a wire antenna over or under a power line.