Guy Olinger K2AV <[email protected]> wrote: > Sommerfeld and all the rest are tuned APPROXIMATION algorithms > that seem well-calibrated only in the commercial BC paradigm.
Sommerfeld integral is not an approximation, has not been tuned, and has no provision for tuning. Sommerfeld integral is an exact solution of Maxwell equations for the case of infinite, plane and homogenous ground. Of course, our actual "grounds" are neither infinite, nor plane, and they are certainly not homogenous, but that's another story. Caution and common sense must be exercised with Sommerfeld method, or any other theoretical method. With due attention payed, something can always be gained from sound theoretical calculations, but they must not be consumed with a blind faith. 73, Sinisa YT1NT, VE3EA _________________ Topband Reflector Archives - http://www.contesting.com/_topband
