Joint Electronics Type Designation System
The Joint Electronics Type Designation System (JETDS) (German as joint forces comprehensive electronics naming system ), formerly known as Joint Army-Navy Nomenclature System (AN System) and Joint Communications-Electronics Nomenclature System is one of the US War Department during World War II method developed for naming electronic equipment with an identifier that is not subject to confidentiality . JETDS is specified in the United States Military Standard MIL-STD-196 .
use
Military equipment usually includes electronic systems for tasks such as data processing, target detection and tracking (underwater, at sea, on land, in the air or in space), detection and identification, communication, navigation aid, weapon control, flight control or electronic countermeasures. This designation system is used in the United States for:
- Electronic devices designed for the military
- Commercial electronic devices that have been adapted for military use and whose development is operated by the military
- Electronic devices developed by other federal agencies or countries that have subscribed to the naming scheme
In the JETDS scheme, device groups or systems are named with a sequence of letters and numbers that begin with AN / , followed by three letters, a hyphen and a number. Occasionally, additional letters can also be added. The three letters that follow the AN / provide information about the place of use, the type and purpose of the device. The meaning of the letters can be deciphered with the help of the table. For example, AN / PRC-77 is a portable radio communication system ( P ortable R adio C ommunications). The numbers after the hyphen are assigned sequentially for the respective type group, so that when comparing two devices, the one with the larger number is the more modern.
Software and commercial devices not adapted for military use, for which the manufacturer is responsible for development, are not covered by this naming scheme. Systems with a variable configuration have a "(V)" in addition to the type code, training systems a "(T)". Subsystems are identified by a two-letter code followed by a number, a slash, and one to three letters of the three-letter system code. Example: BA-1234 / PRC is a battery for portable radio equipment.
Three letter codes
First letter: installation location
- A - Piloted Aircraft / airplane, controlled by pilots
- B - Underwater Mobile (submarine) / underwater vehicle (submarine)
- C - Cryptographic Equipment / cryptographic facility (only used by the NSA , previously: air-loadable)
- D - Pilotless Carrier (drone, UAV) / aircraft without a pilot, drone / UAV
- F - Fixed Ground / Solid Ground Station
- G - General Ground Use / Common use on the ground
- K - Amphibious / Amphibian
- M - Ground Mobile / ground Mobile
- P - Human Portable / Portable persons
- S - Water (surface ship) / Schiff (überwasser)
- T - Transportable (ground) / Transportable on the ground
- U - General Utility (multi use) / General applicability
- V - Vehicle (ground) / ground vehicle
- W - Water Surface and Underwater combined / overwater underwater combined
- Z - Piloted / Pilotless Airborne vehicles combined / aircraft combined with / without a pilot
Second letter: type of device
- A - Invisible Light, Heat Radiation (eg infrared) / Invisible light, heat radiation
- B - Comsec / protection of communication links (only used by the NSA, previously: carrier pigeon )
- C - Carrier (electronic wave or signal) / carrier signal
- D - Radiac (Radioactivity Detection, Identification, and Computation) / radiation measuring device
- E - Laser / Laser (formerly: NUPAC , Nuclear Protection & Control)
- F - Fiber Optics (was Photographic) / Fiberoptik (formerly: Photography )
- G - Telegraph or Teletype / Fernschreiber
- I - Interphone and Public Address / intercom or public address system
- J - Electromechanical or inertial wire covered / Sheathed electrical connection
- K - telemetering / telemetry
- L - Countermeasures / countermeasures
- M - Meteorological / Meteorology
- N - Sound in Air / sound
- P - radar
- Q - Sonar and Underwater Sound / Sonar or hydrophone
- R - radio / radio
- S - Special or Combination / special device or combination
- T - Telephone (Wire) / Telephone (wired)
- V - Visual, Visible Light / Visuell
- W - armament / other armament
- X - Fax or Television / Fax or image transmission
- Y - data processing / data processing
- Z - Communications / Kommunikation (only used by the NSA)
Third letter: purpose
- A - Auxiliary Assembly / auxiliary or secondary assembly
- B - bombing
- C - Communications (two way) / communication
- D - Direction Finding, Reconnaissance and Surveillance / Bearing, Reconnaissance, Surveillance
- E - Ejection and / or release / ejection or ejection
- G - Fire Control or Searchlight Directing / fire control or searchlight control
- H - Recording and / or Reproducing / recording / reproduction
- K - Computing / calculation
- L - no longer used, previously: searchlight control (now covered by G)
- M - Maintenance or Test / Maintenance or Test
- N - Navigation Aid / navigational aid
- P - no longer used, previously: reproduction (now covered by H)
- Q - Special or Combination / special device or combination
- R - Receiving or Passive Detecting / Reception or passive location
- S - Detecting, Range and Bearing, Search / location, bearing, searching
- T - transmitting / transferring
- W - Automatic Flight or Remote Control / Automatic flight control or remote control
- X - Identification or recognition / identification and recognition
- Y - Surveillance (target detecting and tracking) and Control (fire control and / or air control) / surveillance (target location and tracking) and control (fire control and / or flight control)
- Z - Secure (only used by the NSA)
history
JETDS was introduced by the Joint Communications Board on February 16, 1943 for all new airborne, radio or radar equipment in the US Army and US Navy . Over time, the standard was expanded to also cover ship, submarine, amphibious and ground equipment of the US Marine Corps and the US Navy. When the US Air Force was spun off as a separate branch of service, it continued to use this naming scheme for its electronic equipment. JETDS was acquired by the US Coast Guard in 1950 , Canada in 1951, and the NSA in 1959. The United States Department of Defense elevated it to military standard MIL-STD-196 in 1957. JETDS has been adapted over time by removing obsolete types (e.g. -B- : carrier pigeon ) and adding new ones (e.g. computers and cryptographic equipment). The current version, MIL-STD-196G, was released in May 2018.
Use in Germany
Devices with JETDS designations can also be found in the Bundeswehr in Germany . This is equipment that has been purchased from US manufacturers or manufactured under license. The original US names were retained.
Examples:
- AN / APG-65 : On-board radar of the F-4F Phantom II
- AN / FPN-36 : Approach radar
- AN / FPS-117 : Air surveillance radar
Web links
- Detailed description of the JETDS (English)
Individual evidence
- ↑ MIL-STD-196G. In: everyspec.com. Retrieved July 17, 2020 .