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Appendix 9:
Joint electronics type
designation system
US military electronic equipment is designated with the
following series of letters and numbers, reading left to
right:
1 Prefix AN, indicating that the equipment is a formally
designated military system.
2 Three-letter equipment indicator code. The first letter
indicates the platform from which the equipment operates,
the second its type and the third its function.
Platform letters are: A Piloted aircraft, B Underwater
mobile (submarine), D Pilotless carrier, F Fixed ground,
G General ground use, K Amphibious, M Mobile
(ground), P Portable, S Water (surface), T Groundtransportable,
U General utility, V Vehicular (ground),
W Water (surface and underwater combination),
Z Piloted/pilotless airborne vehicle combination.
Type indicators are: A Invisible light/heat radiation,
C Carrier, D Radiac, G Telegraph or teletype,
I Interphone/public address, J Electro-mechanical or
inertial wire-covered, K Telemetry, L Countermeasures,
M Meteorological, N Sound in air, P Radar,
Q Sonar/underwater sound, R Radio, S Special or combination
of types, T Telephone (wire), V Visual and visible
light, W Armament, X Facsimile or television, Y Dataprocessing.
Function indicators are: A Attachment, B Bombing,
C Communications, D Direction-finding, reconnaissance
and/or surveillance, E Ejection and/or release, G Fire
control or searchlight direction, H Recording and/or
reproducing, K Computing, M Maintenance and/or test
assembly, N Navigation aid, Q Special or combination of
purposes, R Receiving/passive detection, S Detection
and/or range and bearing search, T Transmitting,
W Automatic flight/remote control, X Identification and
recognition, Y Surveillance and control.
3 Number indicating place in the chronological sequence
of all such systems to have entered service.
4 Designation modifying suffix giving additional information:
A, B, C etc Successive major variants,
(V) available in various configurations, (V)1, 2, 3 etc indicates
the variant used in a particular installation,
(X) under development, ()not yet formally designated.
As an example, AN/ALR-62(V)4 indicates the 62nd type
of piloted-aircraft countermeasures receiver/passivedetection
system; this variant, the fourth, was specific to
the EF-111A electronic-warfare aircraft.
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