Mr. Fry, I'm confused by your assertion that, "The [BL&E] data gathered is applicable to other frequencies for antenna systems having the same conductor dimensions in wavelengths."
Your paper titled, "Frequency and Earth Conductivity as Factors in MW Field Intensity(1)," indicates that frequency has a pronounced effect on field intensity. Further, you write that, "Groundwave radiation in the AM broadcast band... can penetrate the earth to the depth of several tens of meters." According to my limited understanding of "skin effects," such penetration decreases with increasing frequency. Would your assertion not be true only in the case of earth which is homogeneous with respect to conductivity to a depth of several tens of meters? 73 -- Brian -- K1LI (1) http://rfry.org/Software%20Download/Freq%20and%20Conductivity%20as%20Factors%20in%20MW%20Field%20Intensity.pdf On Tue, Nov 8, 2011 at 6:27 AM, Richard Fry <[email protected]> wrote: > >Tests for a given frequency need to be done on that frequency. > > The BL&E tests were designed to determine the "efficiency" of monopole > antenna systems, as shown by the groundwave field they produce close enough > to the monopole so that the effects of frequency and earth conductivity are > negligible. The data gathered is applicable to other frequencies for > antenna systems having the same conductor dimensions in wavelengths. _______________________________________________ UR RST IS ... ... ..9 QSB QSB - hw? BK
