It is interesting how base requirements have changed over the years. Back in
1970, I had a 64' freestanding aluminum tower (Heights) with a tribander on it
and other antennas. All the manufacturer specified for a base was 4'x4'x4'
concrete and I don't think they said much, if anything, about rebar. I had
that tower up at two different locations, I'm pretty sure the bases are still
there ;-)
Ken WA8JXM
On Dec 1, 2013, at 1:44 AM, Matt wrote:
> The design
> notes allow for soil conditions of 333 psi wich they defined as "sand well
> graded". Regarding foundation dimensions I guess it depends on which school
> one subscribes to. Conservative is to size for no tip-over without taking
> any credit for any contribution of soil bearing strength. If one has some
> compressive soil numbers, then the foundation size can be reduced to take
> credit for the coil's contribution.
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