On Sun, 2 May 1999 13:45:41 EDT K7LXC@aol.com writes:
> In a message dated 99-05-02 12:49:41 EDT, notawc@juno.com writes:
>
> > On a related thread would not just one set of 1/4" EHS guys at the
> 40'
> > level be sufficient for a modest tribander type of installation?
>
> For 45G? According to the Rohn catalog, that's the recommended
> configuration. One set up to 50 feet at 110 MPH. You do have a Rohn
> catalog,
> don't you?
I do ( starting about 30 yrs ago) but it seems many of the commenters are
clueless. Some of the replies are totally ludicrous, uninformed and maybe
dangerous.
However I get real nervous above about 40' on 45G so felt that was my
own comfort margin.
> > Which would be better in that case, a pier pin base or solid
> concrete?
>
> For this modest installation, I'd sink a section in the
> concrete base.
> Four inches or so of gravel in the bottom for leg drainage.
Agree, cheap and safe.
>
> > This would then negate the need for easy to damage Phillystran
> and
> > possibly even guy insulators.
>
> How would that negate the need? You're still dealing with
> metallic guys
> of some length and they will interact with antennas. Just because
> the tower
> isn't very high doesn't mean that the metallic guy wire problems go
> away.
A tribander 20' above the guy station should not interact enough to cause
a problem except on a computer.
This was supposed to be an excersise in reality, not
perfection...remember.
>
> > In Florida having everything grounded 6 ways to Sunday seems a
> wise move.
>
> I agree.
>
> Cheers, Steve K7LXC
>
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