secondchoice said:
Supposedly 1010 AM is going to get 25KW at night, If they could get 50KW 24 hour "market covering" signal for less than a couple million bucks in land and equipment etc., signal they could be an "economy" LMA for someone to do all news, based on the cost of an FM C1 in Atlanta.
It all depends on what kind of pattern they can do at night, and where the tower array is located. That has been the problem with every other AM in ATL with a directional night signal. The net result tends to be weak to nonexistent signal to the north of the city, particularly to the northeast and northwest, due to tower arrays too close in with strong nulls protecting stations to the northeast and northwest (e.g., WCNN, WQXI, WAOK). If you can't get the northern suburbs (Cobb, north Fulton, Gwinnett), forget it.
My guess is that they could go northwest of town and aim the pattern east-southeastward. In terms of night coverage with a DA signal, WDWD probably has the best location and pattern. See
http://www.radio-locator.com/cgi-bin/pat?call=WDWD&service=AM&status=L&hours=N . If you could build an array in, say, north Paulding County or south Bartow or Cherokee, and shoot a similar pattern ESE, you could cover most of the juicy part of the market with a pattern that doesn't let too much signal go northwards.
Question for the technical folks: How feasible is it for multiple AMs to use the same array? I know that tower heights are "tuned" for the frequency being used. I also know that 1690 was using one of the 1420 sticks for a nondirectional signal for a while. If so, someone could build an array that could serve multiple AMs, maybe those clustered around 1010 like 920, 970, 1080, 1160, and 1190 (no, I haven't checked any of these stations for interference), spreading the costs and adding viable AMs to the ATL dial.