1964 March, Gilmore, C. P., “I Was Shot Down by an American Jet”, in Popular Mechanics, page 111:
The ship had one big handicap—me. Normally, the navigator is also the EWO—Electronics Warfare Officer, or in pilots' language, the scope dope. He manipulates the ECM equipment to throw interceptors off the scent.
"Nice touch, for a scope dope," Buehrle said. The term was hardly a compliment, coming from a pilot, but Mark was proud of his time as a satellite controller. It was one of the jobs that had gotten him hired by NASA, after all.