> With a signal like that, listeners as far south as Columbus
> and Warner Robins could get WGKA, at least during the day.
>
Maybe, but only with a *VERY* good radio and antenna. WGST and WSB can be heard in Columbus with a listenable signal on any modest AM tuner, but then again Columbus falls well within the fringe reception range of these two powerhouses. I'm doubtful WGKA will be heard down here with nothing more than a faint whisper.
I'm not trying to rain on your parade, but just letting you know that most of the other ATL AM's that aren't daytime 50kW don't even come close to Columbus.
By the way, I'm curious as to how well you can hear 540 WDAK. I know it's easily heard in Montgomery. For only 5kW during the day, they do go out quite a ways.