[TowerTalk] Re: Rf Safety

[Bill Turner]

On Tue, 12 Sep 2000 15:06:08 -0400, Bill Coleman AA4LR wrote:

>It stands there today. 50 kW of power at 750 kHz day and night, in the 
>middle of the parking lot for the mall. You can't get within about 50 
>feet of the tower, because of a protective wall, but most of the shopping 
>complex is within range of the guy wires.
>
>If that isn't an "uncontrolled" space, I don't know what is....
>
_________________________________________________________________

50 feet is plenty.  I did a quick check using the U of Texas RF safety
calculator for 50,000 watts, dipole type gain, 750 kHz and included
ground reflection (worst case).  They are well within compliance.
Only at 13.54 feet or less would they be out.  If the antenna gain
were increased to 6db, the uncontrolled distance rises to only 20.94
feet.

73, Bill W7TI





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