[BC] Most powerful AM radio station....

[PeterH5322@aol.com]

In a message dated 11/13/05 5:11:51 PM, Robertm at broadcast.net writes:


> KXTA appears the biggest baddest in the West
> with over 7500 mv Days although it is a DA-2 ...
> 
But, it has 203 degree towers, so, although it is 50 kW days and "only" 44 kW 
nights, the effective power input, adjusting for the increased efficiency of 
the radiators, is more like 100 kW days and 88 kW nights, referenced to the 
Class B minimum.

Multiply that by the "gain" of the array, and it is a clear winner ... of 
something ... in this Nation's second largest market (Los Angeles) ... in this 
World's fourth largest economy (California).

Detroit is such a depressed (and depressing) city, it is no longer even in 
the top 10 cities, having been displaced by California's third largest city (San 
Jose) [ * ] .

Day max = about 6,824 mV/m at 1 km, night max = about 6,237 mV/m at 1 km ... 
but the FCC database, from which I am getting my numbers, is totally 
farkeled-up right now. 7,500 (your number, days) and 7,200 (my estimate, nights) sound 
more reasonable.

Incidentally, KXTA is now KTLK.

The Detroit situation is complicated by move-outs not to facilitate 
improvement to AM service (which has actually declined), but ... reportedly ... to 
facilitate acquiring close-in sites for necessary, and required improvements to TV 
service by co-owned stations.

[ * ] Interesting fact: of this Nation's ten largest cities, seven out of the 
ten are in the Southwest, and these seven are contained in just three states: 
California (3 cities in the top ten, also this Nation's largest economy, and 
this World's fourth largest economy); Texas (also 3 cities in the top ten); 
and Arizona (1 city in the top ten).