And now you can buy high-visibility antenna wire!
-de John NI0K
Jim Brown wrote on 1/2/2020 10:18 PM:
Teflon insulated wire, especially the silver-coated stranded copper
I've found on the internet to wind chokes, is VERY nice stuff. And
it's expensive.
Sometimes it can be quite worthwhile to make antennas less visible,
and reduced weight can be an advantage in some situations, but those
are the only good reason I can think for doing that way. There are
times I've suggested enameled wire for low visibility. As noted,
insulation will lower the resonance slightly, and although larger
conductor diameters can increase SWR bandwidth, that's hardly a
critical factor, it's likely to be too little to notice for the
relatively small change from #14 to #20.
73, Jim K9YC
On 1/2/2020 5:54 PM, Tony Brock-Fisher via TowerTalk wrote:
My question - if I replaced the solid #14 wire with black Teflon
coated #20
stranded tinned copper wire am I giving up anything in performance? I
would
think the Teflon wire would hold up okay?
Note that using insulated wire instead of bare wire will add some
capacitive loading, and the elements will resonate at a lower
frequency for the same length.
I built a triband quad using teflon insulated #18 silver plated
stranded copper wire. It did come out lower in frequency. Other than
that it has held up fairly well.
-Tony, K1KP
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