[TowerTalk] Tower Questions

[Bill Coleman AA4LR]

On 4/4/00 9:45 PM, Kurt Andress at K7NV@contesting.com wrote:

>> Which raises my question -- how do we get these antenna area ratings and
>> antenna area specifications into the same units so we can compare them?
>
>There really aren't too many out there that want to get it sorted out.

Shouldn't it be simple? What units does Rohn rate its towers in? I 
thought it was flat plate equivalent. That's very different from Flat 
Projected area.

>Call the mfgr, and force your way to someone that is capable of having
>the antenna area discussion. Then just ask for the Flat Projected
>antenna areas for the elements and the boom. Then you can go figure out
>the worst case condition for what you want to do.
>
>If that leads nowhere, get the physical dimensions of the antenna and do
>it yourself, it's easy. Flat projected area = length x outside diameter
>of everything at each azimuth (0 or 90 deg).

Isn't there a difference in flat projected area for a round member versus 
a square one? How does one convert from flat projected area to flat plate 
equivalent?



Bill Coleman, AA4LR, PP-ASEL        Mail: aa4lr@radio.org
Quote: "Boot, you transistorized tormentor! Boot!"
            -- Archibald Asparagus, VeggieTales


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