If a person is calling cq dx they dont want to talk to another stateside contact.And he is calling cq 10-10...i dont see anything wrong.I dont bother anyone on any band,except when i hear a Cber on am with roger beeps and echos and speaking Spanish.Its a test for my antennas,and also for my signals with the scope.I hear dx stations calling,all the time.And hear them call by numbers,and some people dont understand that by the numbers means by the numbers,if you are in five land dont answer with a 9 call,unless you are in five land,and if im calling myself cq 10-10 i will talk to you,but im looking for certian states and also 10-10 numbers also.73 de n0zna