NQ4I (Rick) is owner of a large amateur radio station in Georgia that is heavily involved in something called "radio contesting". You probably heard something similar to:
"CQ contest, CQ Contest, NQ4I" a few times followed by a very brief information exchange with another station followed by the CQ call again.
Amateur radio contests involve operating radios for a defined period of time (usually 24 - 48 hours) and talking to as many people as possible in as many locations as possible during that interval. A decent number of ATC folks turn out to be ham radio operators. Both endeavors require one to be accurate, precise and to have language and technical skills.
Of interst to this forum, perhaps, is that Rick (NQ4I) is a great guy and is also a commercial pilot. He's flown for the USAF, Eastern Air and last time we spoke he was flying G4s and G5s for Net Jets.