[TowerTalk] Open Wire Line

[Mike Lamb]

Jim,

It might be a good idea, just to be safe, to throw the material into a microwave
oven with a cup of water for a minute and see if it warms up or not.  If it
does, it may not be very good for RF.

73/Mike

Jim Berry wrote:

> If you go to a sign place, they often will let you haul away all the plastic
> sign material you would like for nothing.  Now this stuff is not rods, but
> sheets.  You have to cut it up in strips and then then drill it for the wire
> to pass thru.  If you have a table saw or such device for wood working, you
> are set.
>
> 73 Jim K7SLI
>
> >
> > >  Since I've tried making my own open wire line and found it very
> > > difficult due problems finding spreader material,  can you give any
> > > indication how commercially  made ladder(window) line would perform?
> > >  What did you use for spreader material ?
> >
> >
> >       You can get Lucite rod in 8 foot lenghts for under 5 bucks
> > apiece. Good
> > place to check is sign makers or plastic suppliers. We've made a lot of
> > it. Use a 3/8" rod and make a simple jig to cut it in and drill it for
> > either #12 or #14 copper wire.
> >
> >       In a couple of evenings you can knock out a 100' easy. We prefer 600
> > ohm over the 450 ohm.
> >
>
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