I've been using black and yellow screw in insulators to support beverage wires for years with no problems....well, with the insulators that is...plenty of problems with falling trees, etc. 73, Ken - K4XL
On Tue, Aug 3, 2021 at 6:46 PM Grant Saviers <[email protected]> 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:[email protected]] On > > Behalf Of Drew Vonada-Smith > > Sent: Tuesday, August 3, 2021 1:02 PM > > To: [email protected] > > 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 <[email protected]> > > To: [email protected] > > Subject: Topband: Fwd: [TowerTalk] Fwd: Amazon recommends "Zareba > > ITY-Z Standard..." and more > > Message-ID: <[email protected]> > > Content-Type: text/plain; charset=utf-8; format=flowed > > > > FYI.? Materials for Beverages? > > > > 73 de > > Gene Smar? 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