Paul Eisenhauer, CTRC USN Retired, 1956-1975 I joined in 1956 and wanted to copy morse code so I ask for RM and CT as a 2nd choice. The Chief that interviewed me told me that CT was all secret and that he didn't what they did. Chief's were Gods in boot camp so I figured if he didn't know what it was it must be special so I went for it and the rest is history... Ike