"Richard Clark" wrote:
I've been modeling for results at the horizon for as long as I've held
a copy of EL/EZNEC. This and the Brown, Lewis, Epstein data
confirm to within 1dB as I've reported on more than one occasion.
_____________

Even the demo version of EZNEC, used judiciously, can do that.

The link below leads to a screen clip of EZNEC output windows. EZNEC
parameters were set for the 1937 BL&E study for a 90 degree monopole, and
the r-f ground produced by ~113 radials each about 0.41 lambda long

EZNEC shows an h-plane field of 189.76 mV/m at 1 mile for 1 kw of applied
power. The BL&E paper shows about 191 mVm for those conditions (Figure 30).

The EZNEC calculation for these conditions differs from the BL&E paper by
less than 0.06 dB.

http://i62.photobucket.com/albums/h8...EC-2Emulat.gif

RF

PS: And many thanks to Roy Lewallen for making a demo version of EZNEC
available.