is there any copywrite issues with having a site with same name as a call sign for a radio station? they use the call sign and is ranked #1 in google for it,but they really go by another name. i have it right now in google that i'm ranked for the name and the TLD,but not without the TLD. the site is not related in any way,but you can say that they would be very unhappy if i'm on the first page or out rank them.
Copywrite is the art of writing ad/sales copy. Copyright is protection of writtings, art, etc.... This would be a trademark issue. Here are some cases that is very similar. ICANN Domain Dispute 1 ICANN Dispute 2 Dispute 3 Dispute 4 The facts may not be the same in your case, but you can see the thought process involved.