WTOP WTOP began life at 1500 on the AM dial began life at 1500 on the AM dial Wikipedia WTOP WTOP WTOP-FM Wikipedia WTOP all-news in the mid-1960s WTOP Radio WTOP-FM WTOP-FM WTOP WTOP-FM WTOP-FM Wikipedia WTOP-FM all-news in the mid-1960s view article WTOP-FM WTOP-FM