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,
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$21.99
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