[BC] Elevated radials

James B. Potter jpotter at jpotter.com
Tue Jun 26 19:54:47 CDT 2012


 >> How about the length/diameter ratio of the tower?  Fatter towers have
lower Q = wider BW.
 
 >In theory.  Methinks if you measure, you'd find maybe 7 kHz on an 18 inch
widening on a 36 inch to about 7.1 kHz, depending on frequency.
 >In practical terms, inconsequential in most cases.  /Cowboy

Laport addresses this, plus formulae for converting triangular towers to
equivalent cylinders.  I'll try to find it in my Laport text an report back.
My recall is that Length/Diameter ratio is more consequential than just
100KHz.  Could be wrong, but I'll check.

Regards/J



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