  In this work, a recently developed novel solution of the famous "Sommerfeld
Radiation Problem" is revisited. The solution is based on an analysis performed
entirely in the spectral domain, through which a compact asymptotic formula
describes the behavior of the EM field, which emanates from a vertical Hertzian
radiating dipole, located above flat, lossy ground. The paper is divided into
two parts. First, we demonstrate an efficient technique for the accurate
numeric calculation of the well - known Sommerfeld integrals, required for the
evaluation of the field. The results are compared against alternative
calculation approaches and validated with the corresponding Norton figures for
the Surface Wave. Then, in the second part, we briefly introduce the asymptotic
solution of interest and investigate its performance; we contrast the solution
versus the accurate numerical evaluation for the total received EM field and
also with a more basic asymptotic solution to the given problem, obtained via
the application of the Stationary Phase Method (SPM). Simulations for various
frequencies, distances, altitudes and ground characteristics are illustrated
and inferences for the applicability of the solution are made. Finally, special
cases, leading to analytic field expressions, close as well as far from the
interface, are examined.
