I've just been reading all the recently posted comments and thinking, What the devil is CQ CH ? I then find that this is an abbreviation for County Hunting in the US. This leads me on to thinking, why, as PSK is a visual communication, operators cannot put in their transmitted message "CQ County Hunters". This also applies to most European Special Event Stations, who for some reason refuse to give their names, locations and IARU locators, even when asked.
I have always been under the impression that a radio amateur should give this basic information to a contact, as this is a requirement of being a radio amateur. Regards, Mel G0GQK IO82TS