Richards wrote:
> My wife says a 60 foot tower anywhere in the yard is OK... and any other
> antennas are OK... but do not drill holes in her roof.
>
> I think I can live with that limitation.
>
> GOOD LUCK on your roof tower project.
>
> ======================= K8JHR ========================
>
> WA6RKN wrote:
>
>
>> I did forget to mention that Glen Martin says no need to guy these roof top
>> towers, but..with 80 to 100 mph winds in my neighborhood, at least 3 times
>> a
>>
>
>
Every thing consists of trade offs. <:-))
An un-guyed roof mounted tower translates the wind load to a pivoting
force with a lot of leverage ...which is why they are usually on the
short side with a wide base. With a guyed tower the wind load transfers
to a downward force which depends on the guying angle. I think a well
designed roof with reinforcements would probably hold the downward force
better than a bending moment.
Decisions, decisions, decisions...
73
Roger (K8RI)
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