Topband: Materials for Beverages?

Wed Aug 4 09:23:27 EDT 2021

I use the black from Tractor Supply. They seem to work well but fade from uv I guess. How would you go about testing them for conductivity? Thanks Fred KB4QZH 
-------- Original message --------From: Kenneth Grimm <grimm at sbc.edu> Date: 8/4/21  8:59 AM  (GMT-05:00) To: Grant Saviers <grants2 at pacbell.net> Cc: topband <topband at contesting.com> Subject: Re: Topband: Materials for Beverages? I've been using black and yellow screw in insulators to support beveragewires for years with no problems....well, with the insulators thatis...plenty of problems with falling trees, etc.73,Ken - K4XLOn Tue, Aug 3, 2021 at 6:46 PM Grant Saviers <grants2 at pacbell.net> wrote:> N7QT & I verified that black ring screw-in insulators are too conductive> for one or two transmit radials on 160m.  Lot's of arcs and smoke.  I> now use the yellow 4" long barb wire insulators screwed to trees to> support 160m elevated Tx radials.>> Black may not be a problem with Beverage field strengths.>> Grant KZ1W>> On 8/3/2021 11:16, Tim Duffy wrote:> > Two things concern me about black. UV and possible carbon used to color> > black - which may be conductive at RF frequencies> >> > 73> > Tim K3LR> >> > -----Original Message-----> > From: Topband [mailto:topband-bounces+k3lr=k3lr.com at contesting.com] On> > Behalf Of Drew Vonada-Smith> > Sent: Tuesday, August 3, 2021 1:02 PM> > To: topband at contesting.com> > Subject: Topband: Materials for Beverages?> >> > Gene,> >> > I have used those and others in that series with only fair results.> They do> > break more often than I'd like.  I replace about 10% of them per year,> which> > is acceptable given that they are cheap. But I have not found anything> > better.> >> > FYI - I'd be happy to use black ones, but have never seen them.  My local> > farm store carries the exact same bright yellow ones you listed.  A link> to> > a "preferred type" would be welcome.  I'm a bit of a birder and have not> > heard of any hummingbird death issues.  References?> >> > 73,> > Drew K3PA> >> > ________________________________> >> >> > Toda> > Date: Mon, 2 Aug 2021 16:35:47 -0400> > From: Gene Smar <ersmar at verizon.net>> > To: topband at contesting.com> > Subject: Topband: Fwd: [TowerTalk] Fwd: Amazon recommends "Zareba> >          ITY-Z Standard..." and more> > Message-ID: <78ef5d0e-0d78-c118-0819-e5ccc2dd72f3 at verizon.net>> > Content-Type: text/plain; charset=utf-8; format=flowed> >> > FYI.? Materials for Beverages?> >> > 73 de> > Gene Smar? 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http://www.contesting.com/_topband - Topband> Reflector> >> > _________________> > Searchable Archives: http://www.contesting.com/_topband - Topband> Reflector> >> _________________> Searchable Archives: http://www.contesting.com/_topband - Topband> Reflector>-- Ken - K4XLBoatAnchor Manual ArchiveBAMA - http://bama.edebris.com_________________Searchable Archives: http://www.contesting.com/_topband - Topband Reflector