In a message dated 3/9/2011 2:59:24 P.M. Pacific Standard Time,
> Wow,? I just ran some numbers thru this online utility, and the results
vary wildly from the older ARRL Antenna Mast Analyisis Excel sheet I found
online a year or so ago.
> Can anyone tell me the correct stress PSI of the US Tower M20R
reinforced mast?? I would like to know the true ratings of this mast I have in
here at the moment.?
The figure you want to know is the yield strength. For that, you need to
know the material of the mast. I don't know what it is. I think the
reinforced mast has an inner, shorter mast to beef up the bottom which is
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