I use the black screw-in plastic insulators for Beverage wire supports on
poles, and ceramic strain insulators for the wire ends. The high voltages
likely on the ends of elevated radials of transmitting antennas do not trouble
the ceramic electric fence strain insulators. For my two-wire Beverages, I use
a long coach screw through two ceramic barrel insulators where I use a tree for
an intermediate support. This maintains the spacing, about 1.5”. I secure the
wires with a bit of tie wire, not too tight, to allow the wires to slide when
the tree moves.
My local hardware/farm supply store is the source for most of my wire antenna
stuff. It’s very convenient.
73, Luke VK3HJ
Sent from Mail for Windows 10
From: Grant Saviers
Sent: Wednesday, 4 August 2021 8:46 AM
To: topband@contesting.com
Subject: Re: Topband: Materials for Beverages?
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@contesting.com] On
> Behalf Of Drew Vonada-Smith
> Sent: Tuesday, August 3, 2021 1:02 PM
> To: topband@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@verizon.net>
> To: topband@contesting.com
> Subject: Topband: Fwd: [TowerTalk] Fwd: Amazon recommends "Zareba
> ITY-Z Standard..." and more
> Message-ID: <78ef5d0e-0d78-c118-0819-e5ccc2dd72f3@verizon.net>
> Content-Type: text/plain; charset=utf-8; format=flowed
>
> FYI.? Materials for Beverages?
>
> 73 de
> Gene Smar? AD3F
>
>
>
> Hello Gene Smar,
>
> We found some items we think you might like.
_________________
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