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Re: [TowerTalk] Experimental high efficiency reduced size antennas

To: Jim Lux <>
Subject: Re: [TowerTalk] Experimental high efficiency reduced size antennas
From: Jim Lux <>
Date: Wed, 02 Apr 2008 12:56:26 -0700
List-post: <">>
Jim Lux wrote:
> wrote:
>> I want to put up a 65-foot base insulated vertical, likely using Telex
>> T-15 tower (similar to Rohn 25 but a bit larger). I have a copy of W0UN's
>> note about utilizing G-10 rod as insulators but would like additional
>> information. Does anyone on the llist have personal experience with such a
>> base insulator system?
>> I am aware that there are commercial insulators available but those are
>> cost-prohibitive for my meager budget (the G-10 rod will be expensive
>> enough for my wallet).
> You don't necessarily need G10. You could use anything that is an
> insulator and has the needed mechanical properties. Granted, acetal
> copolymer, Delrin, isn't cheap either, but you could potentially use
> something that isn't made with Glass or Epoxy (e.g. would linen
> reinforced phenolic work?)

If you're looking for rod, there's a bunch of alternatives:
All for 1" diameter pieces from McMaster-Carr (
straight fiberglass rod $5/ft
Glass filled Delrin $12/ft
XX Garolite $10/ft
G10/FR4 Garolite $19/ft

These are probably all about the same strength (in general).

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