[BC] Question about radio in England

[Radiofldude@aol.com]

What is the general output power for AM stations over there? Do they use  
regular veritcal transmission towers like we do or some other form of  
transmitting?
 
I went to _www.classicgolddigital.com_ (http://www.classicgolddigital.com)  
and  looked at their coverage map. It doesnt look like our maps do, they show 
they  cover one entire air, but its almost like they somehow limit the signal 
within  certain boundries.
 
Can someone explain all this to me?

Thanks again  braintrust!

Paul B. Walker, Jr
_http://www.walkerbroadcasting.com_ (http://www.walkerbroadcasting.com)