[TowerTalk] fresnel zone

[Don Andersen]

Hello Lee,

As you have noted, the distance from the base of the tower is dependent on the
angle of radiation.  My 1000' distance would be for a lower angle than your 7
wavelengths (485' on 20m).  Using the 1000'
approximation, a taller tower should be used than with the 7 wavelength
approximation.

73 Don W7DD



--
FAQ on WWW:               http://www.contesting.com/towertalkfaq.html
Submissions:              towertalk@contesting.com
Administrative requests:  towertalk-REQUEST@contesting.com
Problems:                 owner-towertalk@contesting.com
Search:                   http://www.contesting.com/km9p/search.htm