[BC] WLW Superpower Coverage

[Keith Hammond]

Richard Fry wrote:

> I'm using a Fortran program I helped develop long ago where 
> the FCC AM 
> curves were digitized.  I haven't looked at the code lately, 
> but pushing 
> the tx power up to 500 megawatts into a 195 degree omni 
> radiator on 700 kHz 
> reported that the 0.1 mV/m groundwave contour for a 10 mS/m 
> path falls at 
> 661.5 miles.  At that point, I (and the program) gave up.


  Comstudy didn't give up until I went beyond 500megawatts but, even at
that, I still had the .1mv contour around 75 miles short of Texarkana
when I started getting "invalid power level" errors...


Keith Hammond

KBKH-FM (Shamrock, Texas)

(806) 256-1221