"John Rethorst" wrote in message
...
In article ,
pamthis (Sid Schweiger) wrote:

Radio-locator.com's maps are
clearly labeled "This image is intended solely for entertainment
purposes,"

Radio-Locator's Coverage Maps FAQ
(http://www.radio-locator.com/cgi-bin/page?p=maps) says:

"To a large degree, AM radio signals travel through the ground"

which I find pretty entertaining.

Why? Groundwave coverage is the principal means of AM station listening.