[TowerTalk] Experimental high efficiency reduced size antennas

[Jim Lux]

Jim Lux wrote:
> vhfplus at bmg50.com 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 (http://www.mcmaster.com)
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).