[time-nuts] Freestanding mast

[Bob Camp]

Hi

There are a lot of chimney mount antenna supports. They should get you up 6 feet above the top of the chimney. Simple to install and pretty cheap.

Bob



On Sep 2, 2010, at 8:46 PM, "Charles P. Steinmetz" <charles_steinmetz at lavabit.com> wrote:

> I'm curious what the best freestanding mast is for a timing antenna (think Lucent timing antenna or marine "mushroom" GPS antenna -- light and pretty small).  The mast would have its highest support at rooftop or chimney-top level, and could extend from there as far downward as the ground with additional supports as required.  Should be able to survive at least Category 2 winds and heavy snow and ice.
> 
> What reasonably available mast material no more than, say, 3" in maximum cross-section would allow the most vertical extension above the highest support, and how much extension would that be?  I'm thinking 10 feet of 2" or so thin-wall steel tube may be OK, but beyond that I don't know.  Tubing is probably not the optimum shape, but I assume the availability of other engineering shapes (say, "+" cross-section) is likely to be limited.
> 
> Ideas?
> 
> Thanks,
> 
> Charles
> 
> 
> 
> 
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