[BC] AM Allocation research - Thanks

[Jeff Glass]

In a message dated 4/26/10 8:00:39 AM Central Daylight Time, 
broadcast-request at radiolists.net writes:

> There are many closely spaced Class C AMs in the northeast --  for
>  instance, WHAT 1340 in Philadelphia, which is only 70.3 km from
>  co-channel WRAW in Reading, PA and 95.1 km from WMID in Atlantic City.
>   The M3 map assumes a conductivity of 4 in this region, but in most
>  cases it's actually much lower, so these old allocations were probably
>  based on measured conductivities.

Mark:

 Thank you for that very helpful information, and for unraveling a mystery. 
I'm relieved to learn that the discrepancy was not caused by my 
misapplication of the rules. 

Jeff Glass
Northern Illinois University

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