# Cryptologic technician > Mediated Wiki article. Canonical URL: https://mediated.wiki/source/Cryptologic_technician > Markdown URL: https://mediated.wiki/source/Cryptologic_technician.md > Source: https://en.wikipedia.org/wiki/Cryptologic_technician > Source revision: 1344043304 > License: Creative Commons Attribution-ShareAlike 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/) {{Short description|Job specialty in the US Navy}} {{Tone|date=February 2025}} {{Infobox Military rating |name= Cryptologic technician |image=CT Spark and Quill.jpg |alt=US Navy Cryptologic Technician rating badge with correct orientation of the spark |caption= Rating insignia |issued_by= [United States Navy](/source/United_States_Navy) |type= Enlisted rating |abbreviation= CT |specialty= Technical }} '''Cryptologic technician''' (CT) is a [United States Navy](/source/United_States_Navy) [enlisted](/source/Enlisted_rank) rating or job specialty. The CT community performs a wide range of tasks in support of the national [intelligence-gathering](/source/Intelligence_(information_gathering)) effort, with an emphasis on [cryptology](/source/cryptology) and [signal intelligence](/source/signal_intelligence) related products. Most CT personnel are required to obtain and maintain security clearances. Due to the highly classified and secure work environment requiring very restricted access, it is not always possible to share resources with other commands. The majority of details within the CT work environment require dedicated technicians with appropriate security clearances (this accounts for the many branches of the CT rating, i.e. CTI, CTM, CTO, CTR, CTT, CWT). The contribution of an individual CT will depend upon the branch or career area. Cryptologic technicians engage in wide ranges of career and training options, serving ashore, afloat, or in an airborne capacity. CT sailors may serve on overseas assignments of lengthy duration, or may never travel overseas. ==Ratings== *Interpretive (CTI) – Naval [linguist](/source/linguist)s, who specialize in analysis of adversary developments, radiotelephone communications, and preparation of statistical studies and technical reports requiring knowledge of a foreign language.{{cite web|url=https://www.cool.navy.mil/usn/enlisted/rating_info_cards/cti.pdf|archive-url=https://web.archive.org/web/20150418121119/https://www.cool.navy.mil/usn/enlisted/rating_info_cards/cti.pdf|url-status=dead|archive-date=April 18, 2015|title=US Navy CTI Rating Card|accessdate=2 March 2017}} {{PD-notice}} *Maintenance (CTM) – the installation, configuration, diagnosis, and repair of state-of-the-art electronic, computer, and network hardware and software systems.{{cite web|url=https://www.cool.navy.mil/usn/enlisted/rating_info_cards/ctm.pdf|archive-url=https://web.archive.org/web/20161111042429/http://www.cool.navy.mil/usn/enlisted/rating_info_cards/ctm.pdf|url-status=dead|archive-date=November 11, 2016|title=US Navy CTM Rating Card|accessdate=2 March 2017}} {{PD-notice}} *Collection (CTR) – perform a variety of duties worldwide at numerous overseas and stateside shore commands, aboard surface ships, aircraft, submarines, and [Naval Special Warfare](/source/Naval_Special_Warfare). Duties include performing collection, analysis, and reporting on communication signals using computers, specialized computer-assisted communications equipment, video display terminals, and electronic/magnetic tape recorders.{{cite web|url=https://www.cool.navy.mil/usn/enlisted/rating_info_cards/ctr.pdf|archive-url=https://web.archive.org/web/20161111062504/http://www.cool.navy.mil/usn/enlisted/rating_info_cards/ctr.pdf|url-status=dead|archive-date=November 11, 2016|title=US Navy CTR Rating Card|accessdate=2 March 2017}} {{PD-notice}} **Synonymous with [US Army](/source/US_Army) job specialty 35S (signals collection analyst) and US Marine MOS 2621 (special communications signals collection operator) *Technical (CTT) – perform a variety of specialized duties associated with the collection and processing of airborne, shipborne, and land-based [radar](/source/radar) signals. They operate electronic intelligence receiving and direction finding systems, digital recording devices, analysis terminals, and associated computer equipment. Systems they operate produce high-power jamming signals used to deceive electronic sensors and defeat radar guided weapons systems. Additionally, intelligence derived from collection and processing update national databases which are crucial to tactical and strategic units throughout the world.{{cite web|url=https://www.cool.navy.mil/usn/enlisted/rating_info_cards/ctt.pdf|archive-url=https://web.archive.org/web/20160909224533/http://www.cool.navy.mil/usn/enlisted/rating_info_cards/ctt.pdf|url-status=dead|archive-date=September 9, 2016|title=US Navy CTT Rating Card|accessdate=2 March 2017}} {{PD-notice}} [Non-communications signals](/source/Non-communications_signals) intelligence (ELINT), electronic warfare support (ES), electronic attack (EA), electronic protect (EP), anti-ship missile defense (ASMD), while a portion perform servicing and maintenance of various related electronic countermeasures systems (i.e., [AN/SLQ-32](/source/AN%2FSLQ-32)) They can hold [Navy Enlisted Classification](/source/Navy_Enlisted_Classification) such as 1702, 1733, 1734, 1736, 1737 which are primarily for the [AN/SLQ-32](/source/AN%2FSLQ-32), 8201, 8295, 8296 which are for Naval Aircrewman, 9135 for Subsurface, 1781 advanced apps, and also the 9141,9102 NEC's. *Cyber Warfare Technician (CTN 2004–2023) (CWT) – perform a variety of duties associated with [computer network operations](/source/computer_network_operations) across global networks. A combination of technical and analytical computer network skills provides the situational awareness required to plan and execute [information operations](/source/information_operations) (IO) actions/ counteractions.{{Cite web |date=August 6, 2024 |title=CWT - Cyber Warfare Technician |url=https://www.cool.osd.mil/usn/moc/index.html?moc=cwt&tab=overview |access-date=September 1, 2024 |website=Navy COOL|archive-date=February 16, 2017 | archive-url=https://web.archive.org/web/20170216065303/https://www.cool.navy.mil/usn/enlisted/rating_info_cards/ctn.pdf}} Initially established as CTN, the rating was replaced by CWT (Cyber Warfare Technician) in 2023.{{cite web | title=Navy Cyber Warfare Technician Rating | website=Navy Cyberspace | date=February 6, 2004 | url=https://www.navycs.com/navy-jobs/cyber-warfare-technician.html | access-date=September 1, 2024}} == Former ratings== *Administration (CTA) – Administrative and clerical duties that control access to [classified](/source/Classified_information) material such as special security officer (SSO) or Defense Courier Service (DCS). (No longer active.) ==Rating changes== {{more sources section|date=March 2026}} *1942-43 specialists (Q) (CR) cryptographers, established 1942-1943, changed to CT in 1948 *1948 Communications technician – Established 1948 from the ratings of specialist (Q) (cryptographers), specialist (Q) (radio intelligence), specialist (Q) (technicians), and radioman *26 March 1976, Communications technician renamed to cryptologic technician (name alignment w/officer community). Establishes CTT, CTR, CTO, CTI, CTA, CTM ratings.{{cite web |url=https://stationhypo.com/2018/06/07/history-of-the-cryptologic-technician-rating/amp/ |title=History of the Cryptologic Technician (CT) Rating |access-date=18 March 2026 |date=7 June 2018 |archive-url=https://web.archive.org/web/20191211215217/https://stationhypo.com/2018/06/07/history-of-the-cryptologic-technician-rating/ |archive-date=11 December 2019 |url-status=dead}} *On October 1, 2003, [Electronic warfare](/source/Electronic_Warfare) technicians (EW) were merged with CTT. *On October 1, 2007, CTA merged with [yeoman](/source/Yeoman_(U.S._Navy)) (YN), and [legalman](/source/legalman). *Cryptologic Technician Communications (CTO) cross-rated to CTN and the legacy CTOs merged with [information systems technician](/source/Information_Systems_Technician_(U.S._Navy)) (IT). *CTM were scheduled to be disestablished in 2008, with certain skill sets converting to [electronics technician](/source/Electronics_Technician_(United_States_Navy)) (ET) and information systems technician (IT) billets, but this has been set on hold for further planning. *The CTN rating was disestablished in 2023, replaced by Cyber Warfare Technician (CWT).{{r|cwt}} ==Notable cryptologic technicians== *CTICS [Shannon M. Kent](/source/Shannon_M._Kent) ==See also== *[Defense Language Aptitude Battery](/source/Defense_Language_Aptitude_Battery) (The test taken to become a CTI) *[Defense Language Proficiency Tests](/source/Defense_Language_Proficiency_Tests) (The tests taken to assess the skill level of CTIs) *[List of United States Navy ratings](/source/List_of_United_States_Navy_ratings) ==References== {{Reflist}} *[https://www.mynavyhr.navy.mil/Navy-Personnel-Command/ Navy Personnel Command] *[https://web.archive.org/web/20060904155222/http://cryptome.org/navy-cto.htm CTO RATING VISION] ==External links== {{Commons category|Cryptologic Technician (United States Navy)}} *[https://web.archive.org/web/20051029094132/http://www.chinfo.navy.mil/navpalib/ranks/ratings/admin.html Enlisted Rating Insignia] *[http://www.usncva.org/ U.S. Naval Cryptologic Veterans Association] *[https://web.archive.org/web/20120912154847/http://www.public.navy.mil/bupers-npc/enlisted/detailing/personnelreadiness/Documents/NECVol2.pdf Public.navy.mil] **[https://web.archive.org/web/20180122001158/http://www.navy.mil/submit/display.asp?story_id=29281 navy.mil] {{DEFAULTSORT:Cryptologic Technician}} Category:United States Navy ratings Category:Technicians Category:Naval intelligence Category:United States Navy sailors --- Adapted from the Wikipedia article [Cryptologic technician](https://en.wikipedia.org/wiki/Cryptologic_technician) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Cryptologic_technician?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.