Well I remember discovering them on ye olde Zenith Transoceanic (well, it was young then) about two weeks before the shift. I was in Washington Ct, and hearing a faint signal at 860.
I wondered who they could be, and after hearing their ID I looked them up in White's Radio Log. When they switched to 1380, the signal was stronger, but there was interference that made them unlistenable where we were. I have no idea what it was. I have fond memories of those days. Had some souped up radios that had my classmates in awe.