Radio Station Class Codes

LIST OF RADIO STATION CLASS CODES

An unofficial list for use by DXers

This list is mainly derived from ITU, US NTIA & FCC and ERO documents but is a modified form for use by DXers in the classification of radio stations.

TERRESTRIAL RADIOCOMMUNICATION SERVICE STATION CLASS CODES
Land Stations are not intended for use (to transmit) while in motion. Mobile Stations are used (to transmit) while in motion or during halts at unspecified points. Repeater Stations consist of a radio transmitter, a radio receiver, and coupling between the two so as to retransmit unchanged in intelligence the received signal. A -R suffix added to any code indicates a repeater. Some codes already contain the R Repeater suffix.
Land	Mobile	Class of Station	Definitions / Notes
AMATEUR SERVICE			A radiocommunication service for the purpose of self-training, intercommunication and technical investigation carried out by amateurs, that is, by duly authorized persons interested in radio technique solely with a personal aim and without pecuniary interest.
AT		AMATEUR
AT-R		Races Amateur	An amateur station used in the Radio Amateur Civil Emergency Service.
BROADCASTING SERVICE			A radiocommunication service in which the transmissions are intended for direct reception by the general public. This service may include sound transmissions, television transmissions or other types of transmissions.
BC		SOUND BROADCASTING
BC-F		FM Broadcasting	A sound broadcasting station, employing frequencies between 87.5 MHz and 108.0 MHz, whose transmissions are intended to be received directly by the general public within the frontier of a region or city.
BC-FB		FM Booster	A FM broadcasting station that simultaneously rebroadcasts the signal of a primary FM broadcasting station on the same frequency.
BC-FR		FM Translator	A FM broadcasting station that simultaneously rebroadcasts the signal of a primary FM broadcasting station on a different frequency.
BC-I		International Broadcasting	A broadcasting station, employing frequencies between 5.9 MHz and 26.1 MHz, whose transmissions are intended to be received directly by the general public in foreign countries.
BC-L		L-Band DAB Broadcasting	A sound broadcasting station, employing frequencies between 1450 MHz and 1492 MHz, whose transmissions are intended to be received directly by the general public within the frontier of a region or city.
BC-N		National Broadcasting	A sound broadcasting station, employing frequencies between 2.3 MHz and 26.1 MHz, whose transmissions are intended to be received directly by the general public within the frontier of a country or region.
BC-S		Standard Broadcasting	A sound broadcasting station, employing frequencies between 153 kHz and 1710 kHz, whose transmissions are intended to be received directly by the general public within the frontier of a country or region.
BC-V		Band-III DAB Broadcasting	A sound broadcasting station, employing frequencies between 174 MHz and 230 MHz, whose transmissions are intended to be received directly by the general public within the frontier of a region or city.
BT		TELEVISION BROADCASTING	A broadcasting station that uses a form of telecommunication for the transmission of transient images of fixed or moving objects.
BT-R		Television Translator	A television broadcasting station that simultaneously rebroadcasts the signal of a primary television broadcasting station on a different channel.
BT-RB		Television Translator Booster	A television translator that simultaneously rebroadcasts the signal of a primary television broadcasting station on the same channel.
TS		TELEVISION (SOUND CHANNEL)
TV		TELEVISION (VISION CHANNEL)
EXPERIMENTAL SERVICE			A radiocommunication service utilizing radio waves in experiments with a view to development of science or technique.
EX		EXPERIMENTAL
EX-C		Experimental Contract Developmental	An experimental station used for the evaluation or testing under government contract of electronics equipment or systems in a design or development stage.
EX-D		Experimental Developmental	An experimental station used for evaluation or testing of electronics equipment or systems in a design or development stage.
EX-DA		Aviation Developmental	An experimental developmental station used for evaluation or testing of aviation electronics equipment or systems in a design or development stage.
EX-E		Experimental Export	An experomental station Intended for export and used for the evaluation or testing of electronics equipment or systems in the design or development stage.
EX-M		Experimental Composite	An experimental station used in experimental operations of a complex nature not readily specified or used in an operation which is a composite of two or more of the established experimental categories.
EX-R		Experimental Research	An experimental station used in basic studies concerning scientific investigation looking toward the improvement of the art of radiocommunications.
EX-T		Experimental Testing	An experimental station used for the evaluation or testing of electronics equipment or systems, including site selection and transmission path surveys, which have been developed for operational use.
FIXED SERVICE			A radiocommunication service between specified fixed points.
FX		FIXED
FX-B		Standard Broadcast STL	A fixed station used for relaying AM signals from the studio to the transmitter.
FX-C		Central Office Fixed	A fixed station located in a common carrier switching centre in which trunks (single transmission channels between two points that are switching centres or nodes, or both) and loops (communications channels from a switching centre or an individual message distribution point to the user terminal) are terminated and switched.
FX-CE		Digital Electronic Message Fixed	A fixed station in a two-way end-to-end service utilizing digital termination systems for the exchange of digital information.
FX-CR		Cable Antenna Relay	A fixed station used for the transmission of television and related audio signals, signals of AM and FM broadcast stations, signals of instructional television fixed stations,and cablecasting from the point of reception to a terminal point from which the signals are distributed to the public.
FX-CT		Local Television Transmission	A fixed station used for the transmission of television material and related communications to television broadcast stations, network entities, cable system operators and cable network entities.
FX-D		Telecommand Fixed	A fixed station used for terrestrial transmission of signals to initiate, modify or terminate functions of equipment at a distance.
FX-DI		Fixed Dispatch
FX-E		Telemetering Fixed	A fixed station used for telemetering.
FX-F		FM STL	A fixed station used for relaying FM broadcast signals from the studio to the transmitter.
FX-G		International Fixed (Telegraphy)	A fixed station used for communications with stations in foreign countries via telegraphy.
FX-H		Hydrologic & Meteorlogical Fixed	A fixed station used for the automatic transmission of either hydrologic or meteorological data, or both.
FX-HP		High Altitude Platform Fixed	A fixed station using a high altitude platform.
FX-I		International Control	A fixed station that selects the master station and supervises operational procedures, such as polling, selecting, and recovery in communications to stations in foreign countries.
FX-IF		Instructional Television Fixed	A fixed station used to provide educational instruction and cultural and professional development in schools and other institutions.
FX-IO		Inter-Office
FX-M		Aural Intercity Relay	A fixed station used for relaying sound broadcast signals between two points, such as a main studio and an auxiliary studio.
FX-MD		Multipoint Distribution	A fixed station in a point-to-point or point-to-multipoint radio system consisting of local multipoint distribution service hub stations and their associated subscriber stations.
FX-MFX		Marine Operations Fixed
FX-N		Television Intercity Relay	A fixed station used for relaying television broadcast signals between two points, such as a main studio and an auxiliary studio.
FX-O		Operational Fixed	A fixed station not open to public correspondence, only for communications related to the licensee's commercial, industrial, or safety operations.
FX-P		International Fixed (Telegraphy)	A fixed station used for communications with stations in foreign countries via telegraphy.
FX-R		Rural Subscriber Fixed	A fixed station that provides telephone service to subscribers in remote areas.
FX-RP		Fixed Repeater
FX-RX		Fixed Relay	A fixed station associated with one or more stations, established to receive radio signals directed to it and to retransmit them automatically.
FX-ST		Tropospheric Scatter Fixed	A fixed station using tropospheric scatter.
FX-T		Television STL	A fixed station used for relaying television broadcast signals from the studio to the transmitter.
FX-TS		Fixed Auxiliary Test
FX-Y		Interzone Fixed
FX-Z		Zone Fixed
MX		METEOROLOGICAL INFORMATION BROADCAST	A fixed broadcasting station used for transmission of meteorological information.
PX		PRESS BROADCAST	A fixed broadcasting station used for transmission by press services.
Aeronautical Fixed Service			A radiocommunication service between specified fixed points provided primarily for the safety of air navigation and for the regular, efficient and economical operation of air transport.
AX		AERONAUTICAL FIXED	A fixed station used for provision of services related to aircraft flight safety.
AX-0		Aeronautical Operational Fixed	An aeronautical fixed station, not open to public correspondence, operated by and for the sole use of persons operating their own radiocommunication facilities in the public safety, industrial, land transportation, marine or aviation services.
METEOROLOGICAL AIDS SERVICE			A radiocommunication service used for meteorological, including hydrological, observations and exploration.
SM	SA	METEOROLOGICAL AID
SM-B		Radar Beacon Precipitation Gauge	A meteorlogical aid that is a transponder station used for telemetering.
SM-D		Meterological Radar
SM-RG	SA-R	Radiosonde Ground	A meteorological aid consisting of a ground station associated with the radiosonde. SA-R = Radiosonde : An automatic meteorological aid usually carried on an aircraft, free balloon, kite or parachute which transmits meteorological data.
SN		SOUNDER NETWORK	A meteorological aid in the form of an ionosphere sounder used for the realtime selection of frequencies for operational communication circuits.
SP		SOUNDER PREDICTION	A meteorological aid in the form of an ionosphere sounder for realtime monitoring of upper atmosphere phenomena or to obtain data for the prediction of propagation conditions.
MOBILE SERVICE			A radiocommunication service between mobile and land stations, or between mobile stations.
FL	MO	LAND
FL-A	MO-A	Aircraft Radiotelephone Land	A land station that provides two-way voice, fax and data service to subscribers in aircraft, in-flight or on the ground.
FL-D	MO-D	Telecommand Land	A land station used for the terrestrial transmission of signals to initiate, modify or terminate functions of equipment at a distance.
FL-E	MO-E	Telemetering Land	A land station used for telemetering.
FL-EA	MO-EA	Aeronautical Telemetering Land	A telemetering land station used in the flight testing of manned or unmanned aircraft, missiles, or major components thereof. MO-EA = A telemetering mobile station used for transmitting data directly related to the airborne testing of the vehicle, (or major components), on which the station is installed.
FL-EB	MO-EB	Flight Telemetering Land	A telemetering land station used for telemetering to a balloon; to a booster or rocket, excluding a booster or rocket in orbit about the Earth or in deep space; or to an aircraft, excluding a station used in the flight testing of an aircraft. MO-EB = A telemetering mobile station used for transmitting data from an airborne vehicle, excluding data related to airborne testing of the vehicle itself, (or major components thereof).
FL-EC	MO-EC	Surface Telemetering Land	A telemetering land station Intended to be received on the surface of the Earth.
FL-H	MO-H	Hydrologic & Meteorological Land	A land station used for the automatic transmission of either hydrologic or meteorological data, or both.
FL-L	MO-L	Cellular Radiotelephone	A land station used in a mobile radiotelephone service in which common carriers are authorized to offer and provide a mobile telecommunications service for hire to the general public using cellular systems.
FL-O	MO-O	Offshore Radiotelephone	A land station that provides telephone service to subscribers located on (or in helicopters en route to) oil exploration and production platforms.
	MO-P	Portable Mobile	A moblie station designed to be carried by a person and capable of transmitting and/or receiving while in motion or during brief halts at unspecified locations operating in the mobile service.
	MO-R	Mobile Repeater
FL-T		Auxiliary Test
FL-U	MO-U	Aeronautical Utility Land	A land station located at airdrome control towers and used for control of ground vehicles and aircraft on the ground at airdromes. MO-U = A mobile station used on airports for communications relating to vehicular ground traffic.
Aeronautical Mobile Service			A mobile service between aeronautical stations and aircraft stations, or between aircraft stations, in which survival craft stations may participate; emergency position-indicating radiobeacon stations may also participate in this service on designated distress and emergency frequencies.
FA	MA	AERONAUTICAL	Note : In certain instances, an aeronautical station may be located, for example, on board ship or on a platform at sea. MA = AIRCRAFT : A mobile station other than a survival craft station, located on board an aircraft.
FA-B		Aeronautical Broadcast	An aeronautical station that makes scheduled broadcasts of meteorological information and notices to airmen. (In certain instances, an aeronautical broadcast station may be placed on board a ship.)
FA-C		Airport Control Tower	An aeronautical station that provides communication between a control tower and aircraft.
FA-D	MA-D	Telecommand Aeronautical	An aeronautical station used for the terrestrial transmission of signals to initiate, modify or terminate functions of equipment at a distance.
FA-E		Aeronautical Enroute	An aeronautical station which communicates with aircraft stations in flight status or with other aeronautical enroute stations.
FA-FIS		Flight Information Services
FA-M	MA-M	Aeronautical Multicom	An aeronautical station used to provide communications to conduct the activities being performed by, or directed from, private aircraft.
FA-P		Civil Air Patrol
	MA-P	Portable Aircraft	An aeronautical mobile station designed to be carried by a person in an aircraft and capable of transmitting and/or receiving while in motion or during brief halts at unspecified locations.
FA-R		Aeronautical Search & Rescue	An aeronautical station for communication with aircraft and otehr aeronautical search & rescue stations pertaining to search & rescue activities with aircraft.
FA-RCO		Remote Communications Outlet
FA-RPC		Ramp Control
FA-S		Aviation Support	An aeronautical station used to coordinate aviation services with aircraft and to communicate with aircraft engaged in unique or specialized activities.
FA-S		Aviation Instructional	An aeronautical station used for radiocommunications pertaining to instructions to students or pilots while actually operating aircraft or engaged in soaring activities.
FA-T	MA-T	Flight Test	An aeronautical station used in the testing of aircraft or their major components. MA-T = Flight Test Aircraft : An aircraft station used in the testing of aircraft or their major components.
FA-U		Aeronautical Advisory (Unicom)	An aeronautical station used for advisory and civil defence communications primarilu with private aircraft stations.
FA-UAT		Universal Access Transceiver	An aeronautical station that is a radio datalink system authorized to operate on 978 MHz to support Automatic Dependent Surveillance Broadcast (ADS-B) Service, Traffic Information Services Broadcast (TIS-B) and Flight Information Service Broadcast (FIS-B).
FA-W		Automatic Weather Observation	An aeronautical station located at an airport and used to automatically transmit weather information to aircraft.
FG		OFF-ROUTE AERONAUTICAL	An aeronautical station intended for communications, including those relating to flight coordination, primarily outside national or international civil air routes (i.e.-military).
Land Mobile Service			A mobile service between base stations and land mobile stations, or between land mobile stations.
FB	ML	BASE	Note : ML capable of surface movement within the geographical limits of a country or continent.
FB-A		Small Base
FB-AT		Temporary Small Base
FB-B		Travelers' Information Broadcast	A base station used to transmit non-commercial voice information pertaining to traffic and road conditions, traffic hazard and traveler advisories, directions, availability of lodging, rest stops, and service stations, and descriptions of local points of interest.
FB-BS		Paging Base	A base station used for one-way communications from a base station to mobile or fixed receivers that provide signaling or information transfer by such means as tone, tone-voice, tactile, optical readout, etc.
FB-C	ML-C	Diplomatic Corps
FB-CG		Private Paging Land	A base station used for paging that serves internal communications needs.
FB-CT		FBCT
FB-D	ML-D	Telecommand Base	A base station used for terrestrial transmission of signals to initiate, modify or terminate functions of equipment at a distance.
FB-E		Telemetering Base	A base station used for telemetering (for example, railroad hot box detectors).
FB-F	ML-F	Forest Products Base	A base station used in tree logging, tree farming, or related woods operations, including related hauling activities, if the hauling activities are performed under contract to, and exclusively for, persons engaged in woods operations or engaged in manufacturing lumber, plywood, hardboard, or pulp and paper products from wood fibre.
FB-G	ML-G	Military Base	A base station mainly for internal military use.
FB-GS		Ground
FB-I		Itinerant Base
FB-IB	ML-IB	Business Base	A base station used by private investigators, alarm services, school security, philanthropic groups, etc.
FB-IS	ML-IS	Special Industrial Base	A base station used in the operation of farms, ranches, or similar land areas; plowing, soil conditioning, seeding, fertilizing, or harvesting for agricultural activities; spraying or dusting of insecticides, herbicides, or fungicides, in areas other than enclosed structures; livestock breeding service; the operation of a commercial business regularly engaged in the construction of roads, bridges, sewer systems, pipelines, airfields, or water, oil, gas, or power production, collection, or distribution systems, excluding buildings; the operation of mines for the recovery of solid fuels, minerals, metal, rock, sand and gravel from the earth or the sea, including the exploration for and development of mining properties; the maintaining, patrolling or repairing gas or liquid transmission pipelines, tank cars, water or waste disposal wells, industrial storage tanks, or distribution systems of public utilities; acidizing, cementing, logging, perforating, or shooting activities, and services of a similar nature incident to the drilling of new oil or gas wells, or the maintenance of production from established wells; supplying chemicals, mud, tools, pipe, and other materials or equipment unique to the petroleum and gas production industry; the delivery of ice or fuel to the consumer for heating, lighting, refrigeration or power generation purposes, by means other than pipelines or railroads; the delivery and pouring of ready mixed concrete or hot asphalt mix.
FB-M		Base & Mobile
FB-P	ML-IP	Petroleum Base	A base station used in prospecting for, producing, collecting, refining, or transporting by means of pipeline, petroleum or petroleum products (including natural gas).
	ML-P	Portable Land Mobile	A mobile station designed to be carried by a person and capable of transmitting and/or receiving while in motion or during brief halts at unspecified locations.
FB-R	ML-R	Remote Pickup Base
FB-RT	ML-RT	Mobile Radiotelephone	A base station that uses a combination of radio transmission and conventional telephone switching to permit telephone communication to and from mobile users within a specified area.
FB-S	ML-S	Shipyard Base
	ML-SB	Mobile Subscriber
FB-SI		Air/Ground Signalling Base	A base station used for one-way communications to a mobile or fixed receiver, or to multi-point mobile or fixed receivers by audible or subaudible means, for the purpose of actuating a signaling device in the receiver(s) or communicating information to the receiver(s), whether or not the information is to retained in record form.
FB-ST		Standby Base
FB-T	ML-IT	Telephone Maintenance Base	A base station used by communications common carriers engaged in the provision of landline local exchange telephone service, or inter-exchange communications service.
	ML-T	TV Remote Pickup Mobile	A mobile station used for television pickups which relay signals from a remote location, back to the studio.
FB-V	ML-V	Film & Video Production Base	A base station used for direct technical support to the production, videotaping, or filming of motion pictures or television programs, such as movies, programs, news programs, special events, educational programs, or training films, regardless of whether the productions are prepared primarily for final exhibition at theatrical outlets or on television or for distribution through other mass communications outlets.
FB-W	ML-W	Power Base	A base station used in the generation, collection, purification, storage, transmission or distribution of electrical energy, natural gas by means of pipeline, steam by means of pipeline or, of water by means of pipeline, canal, or open ditch, or the providing of a supporting service.
FB-X	ML-X	Manufacturers Base	A base station used in manufacturing activities including the mechanical or chemical transformation of substances into new products, the assembly of components of manufactured products, or the providing of supporting services or materials.
FB-Y	ML-Y	Relay Press Base	A base station used in the publication of a newspaper or in the operation of an established press association.
YI		TRUNKED INDUSTRIAL/BUSINESS NETWORK	A land station with multiple users on a shared network of frequencies with a digital control channel.
Dispatch Service			A land mobile service comprising communications between a dispatcher and one or more mobile units. These communications normally do not exceed one minute in duration and are transmitted directly through a base station, without passing through mobile telephone switching facilities.
FD	MT	DISPATCH
FD-A	MT-A	Automobile Emergency Dispatch	A dispatch station for dispatching repair trucks, tow trucks, or other road service vehicles to disabled vehicles.
FD-D	MT-D	Mountain Railroad Dispatch	A dispatch station used by railroad common carriers which are regularly engaged in the transportation of passengers or property when such passengers or property are transported over all or part of their route by mountain railroad.
FD-I	MT-I	Intercity Passenger Motor Carrier Dispatch	A dispatch station used in providing a common or contract motor carrier transportation service for passengers between urban areas.
FD-J	MT-J	Intercity Property Motor Carrier Dispatch	A dispatch station used in providing a common or contract motor carrier transportation service for property between urban areas.
FD-R	MT-R	Railroad Dispatch	A dispatch station used by railroad common carriers which are regularly engaged in the transportation of passengers or property when such passengers or property are transported over all or part of their route by railroad, excluding mountain railroads.
FD-U	MT-U	Urban Passenger Motor Carrier Dispatch	A dispatch station used in providing a common or contract motor carrier transportation service for passengers within a single urban area.
FD-V	MT-V	Urban Property Motor Carrier Dispatch	A dispatch station used in providing a common or contract motor carrier transportation service for the transportation, local distribution or collection of property within a single urban area.
FD-X	MT-X	Taxicab Dispatch	A dispatch station used in furnishing to the public for hire a nonscheduled passenger land transportation service (which may also include the occasional transport of small items of property) not operated over a regular route or between established terminals.
YL		TRUNKED LAND TRANSPORTATION NETWORK	A land station with multiple users on a shared network of frequencies with a digital control channel.
Maritime Mobile Service			A mobile service between coast stations and ship stations, or between ship stations, or between associated on-board communication stations; survival craft stations and emergency position-indicating radiobeacon stations may also participate in this service.
FC	MS	COAST	MS = SHIP : A mobile station located on board a vessel which is not permanently moored, other than a survival craft station.
FC-A		Maritime Support	A coast station used in support of the maritime services to train personnel and to demonstrate, test and maintain equipment.
FC-B		Marine Broadcast	A coast station that makes scheduled broadcasts of time, meteorological, and hydrographic information.
FC-D	MS-D	Telecommand Coast	A coast station used for terrestrial transmission of signals to initiate, modify or terminate functions of equipment at a distance.
FC-L		Limited Coast Edition
FC-MRT		Marine Receiver Test
	MS-P	Portable Ship	A ship station which includes a single transmitter intended for use upon two or more ships.
FC-S		Shipboard Coast
FC-U		Marine Utility Coast
FC-X		Coast & Fixed
	CA	CARGO SHIP	Any ship that is not a passenger ship.
	FV	FISHING FLEET SHIP
	GV	OFFICIAL SERVICE SHIP
	MM	MERCHANT SHIP
	NF	RIVER VESSEL
	NS	NAVAL/MILITARY SHIP
	PL	PLEASURE SHIP
	SV	RESCUE VESSEL
NA		NOTICES TO NAVIGATORS BROADCAST
OE	OD	OCEANOGRAPHIC DATA INTERROGATING	A coast station used to initiate, modify, or terminate functions of equipment directly associated with an oceanographic data station, including the station itself. OD = A mobile station located on a ship, buoy or other sensor platform the emissions of which are used for the transmission of oceanographic data.
Port Operations Service			A maritime mobile service in or near a port, between coast stations and ship stations, or between ship stations, in which messages are restricted to those relating to the operational handling, the movement and the safety of ships and, in emergency, to the safety of persons. Messages which are of a public correspondence nature shall be excluded from this service.
FP		PORT
FW		PORT & SHIP MOVEMENT	A coast station that serves both as a port operations and a ship movement service station.
Ship Movement Service			A safety service in the maritime mobile service other than a port operations service, between coast stations and ship stations, or between ship stations, in which messages are restricted to those relating to the movement of ships. Messages which are of a public correspondence nature shall be excluded from this service.
FT		SHIP MOVEMENT
Safety Service			A mobile service used permanently or temporarily for the safeguarding of human life and property.
FS	MP	SAFETY OF LIFE	A land station established solely for the safety of life.
FS-F	MP-F	Fire Base	A safety of life station used for official fire protection activities.
FS-H	MP-H	Highway Maintenance Base	A safety of life station used for street & road repair including highway patrol units.
FS-L	MP-L	Local Government Base	A safety of life station used for other city and county services.
FS-M	MP-M	Emergency Medical Base	A safety of life station used in the provision of basic or advanced life support services on an ongoing basis or essential for the delivery or rendition of emergency medical services for the provision of basic or advancedlife support.
FS-O	MP-O	Forestry Conservation Base	A safety of life station used for forestry conservation & firefighting, parks, fish & game wardens, etc.
FS-P	MP-P	Police Base	A safety of life station used by a government entity or institution, authorized by law to provide police protection, for official police activities.
FS-S	MP-S	Special Emergency Base	A safety of life station used for ambulance, paramedics, doctors and water & mountain rescue.
FS-SAR	MP-SAR	Search & Rescue
MD		MEDICAL ADVICE BROADCAST
YP		TRUNKED PUBLIC SAFETY NETWORK	A land station with multiple users on a shared network of frequencies with a digital control channel.
RADIO ASTRONOMY SERVICE			A service involving the use of astronomy based on the reception of radio waves of cosmic origin.
RA		RADIO ASTRONOMY	Note : This is always a receiving station.
RADIODETERMINATION SERVICE			A radiocommunication service for the purpose of the determination of the position, velocity and/or other characteristics of an object, or the obtaining of information relating to these parameters, by means of the propagation properties of radio waves.
-		RADIODETERMINATION
RG		RADIO DIRECTION-FINDING	A radiodetermination station using the reception of radio waves for the purpose of determining the direction of a station or object.
Radiolocation Service			A radiodetermination service for the purposes other than those of radionavigation.
LR	MR	RADIOLOCATION LAND
	MR-B	Radio Beacon Mobile	A mobile station the emissions of which are used to determine its location.
	MR-P	Radiolocation Portable	A mobile station designed to be carried by a person and capable of transmitting and/or receiving while in motion or during brief halts at unspecified locations operating in the radiolocation service.
	MR-T	ELT Test
LR-X		Shore Radiolocation Test
Radionavigation Service			A radiodetermination service for the purpose of navigation, including obstruction warning.
RC		NON-DIRECTIONAL RADIOBEACON
RD		DIRECTIONAL RADIOBEACON
RN	NR	RADIONAVIGATION LAND
RN-DGP		Differential Global Positioning System (Radiobeacon)	A radionavigation station using differential RNSS for specific augmentation of GPS.
RN-L		LORAN	A radionavigation station that transmits synchronized pulses over long distances. Hyperbolic lines of position are determined by the measurement of the difference in the time of arrival of these pulses.
RT		REVOLVING RADIOBEACON
Aeronautical Radionavigation Service			A radionavigation service intended for the benefit and for the safe operation of aircraft.
AL	AM	AERONAUTICAL RADIONAVIGATION LAND
AL-A		Aeronautical Marker Beacon	An aeronautical radionavigation station that radiates vertically a distinctive pattern for providing position information to aircraft.
	AM-A	Radio Altimeter	Mobile radionavigation equipment, on board an aircraft or spacecraft, used to determine the height of the aircraft or the spacecraft above the Earth's surface or another surface.
AL-B		Aeronautical Radiobeacon	An aeronautical radionavigation station intended to enable aircraft to determine its bearing or direction in relation to the radiobeacon station.
AL-C		Aeronautical Radar Beacon (Racon)	An aeronautical radionavigation station that is a transmitter-receiver associated with a fixed navigational mark which, when triggered by a radar, automatically returns a distinctive signal which can appear on the display of the triggering radar, providing range, bearing and identification information.
AL-D		Radar	An aeronautical radionavigation station using a radiotermination system based on the comparison of reference signals with radio signals reflected from the position to be determined.
AL-G		Instrument Landing System (ILS) Glide Path	An aeronautical radionavigation station using a system of vertical guidance embodied in the ILS which indicates the vertical deviation of the aircraft from its optimum path of descent.
AL-L		Instrument Landing System (ILS) Localizer	An aeronautical radionavigation station using a system of horizontal guidance embodied in the ILS which indicates the horizontal deviation of the aircraft from its optimum path of descent along the axis of the runway.
AL-O		Omni Directional Range (VOR)	An aeronautical radionavigation station providing direct indication of the bearing (omnibearing) of that station from an aircraft.
AL-R		Radio Range	An aeronautical radionavigation station providing radial equisignal zones. (In certain instances a radio range station may be placed on board a ship.)
AL-S		Surveillance Radar	An aeronautical radionavigation station employing radar to display the presence of aircraft within its range. (In certain instances, a surveillance radar station may be placed on board a ship.)
AL-T		Aeronautical Radionavigation Land Test	An aeronautical radionavigation station used as a calibration station for the transmission of essential information in connection with the testing and calibration of aircraft navigational aids, receiving equipment and interrogators at predetermined surface locations.
AL-TM		Aeronautical Radionavigation Land Test (Maintenance)	An aeronautical radionavigation land test station that is a maintenance test facility used as a calibration station for the transmission of essential information in connection with the testing and calibration of aircraft navigational aids, receiving equipment and interrogators at predetermined surface locations. The primary purpose of this facility is to permit maintenance testing by aircraft radio service personnel.
AL-TO		Aeronautical Radionavigation Land Test (Operational)	An aeronautical radionavigation land test station that is an operational test facility used as a calibration station for the transmission of essential information in connection with the testing and calibration of aircraft navigational aids, receiving equipment and interrogators at predetermined surface locations. The primary purpose of this facility is to permit the pilot to check a radionavigation system aboard the aircraft prior to takeoff.
AL-V		Distance Measuring Equipment (DME)
AL-W		Microwave Landing System (MLS)	An aeronautical radionavigation station that is an instrument landing system operating in the microwave spectrum that provides lateral and vertical guidance to aircraft having compatible avionics equipment.
Maritime Radionavigation Service			A radionavigation service intended for the benefit and for the safe operation of ships.
NL	RM	MARITIME RADIONAVIGATION LAND
NL-C		Marine Radar Beacon (Racon)	A maritime radionavigation station that is a transmitter-receiver associated with a fixed navigational mark which, when triggered by a radar, automatically returns a distinctive signal which can appear on the display of the triggering radar, providing range, bearing and identification information operating in the maritime radionavigation service.
	RM-D	Ship Radar
NL-DC		Shore Radar Test
NL-M		Marine Radiobeacon	A maritime radionavigation station intended to enable ships to determine its bearing or direction in relation to the radiobeacon station.
NL-R		Shore Radionavigation
SPECIAL SERVICE			A radiocommunication service, not otherwise defined in this Section, carried on exclusively for specific needs of general utility, and not open to public correspondence.
FR		RECEIVING	Receiving station only, connected with the general network of telecommunication channels.
ISM		ISM Equipment	Equipment or applicances designed to generate and use locally radio-frequency energy for industrial, scientific, medical, domestic or similar purposes, excluding applications in the field of telecommunications.
PL		COMBINATION	A station that is a combination of two or more classes of station.
ZA		GENERAL MOBILE RADIO	A station used for the activities of an individual's intermediate family members.
ZC		RADIO CONTROL	A station used for one-way, short-distance, non-voice radio service for on/off operation of devices at places distant from the operator.
ZD		CITIZENS' BAND	A station for use in personal and business activities.
ZV		INTERACTIVE VIDEO & DATA	A station used in a short-distance service designed for transmitting information, product, and service offerings to subscribers and receive interactive responses.
STANDARD FREQUENCY & TIME SIGNAL SERVICE			A radiocommunication service for scientific, technical and other purposes, providing the transmission of specified frequencies, time signals, or both, of stated high precision, intended for general reception.
SS		STANDARD FREQUENCY & TIME SIGNAL

SPACE RADIOCOMMUNICATION SERVICE RADIO STATION CLASS CODES
Earth Stations are located either on the Earth's surface or within the major portion of the Earth's atmosphere and intended for communication with one or more space stations; or with one or more stations of the same kind by means of one or more reflecting satellites or other objects in space. Mobile Earth Stations are located either on the Earth's surface or within the major portion of the Earth's atmosphere and intended for communication with one or more space stations; or with one or more stations of the same kind by means of one or more reflecting satellites or other objects in space; while in motion or during halts at unspecified points. Space Stations are located on an object which is beyond, is intended to go beyond, or has been beyond, the major portion of the Earth's atmosphere.
Earth	Mobile Earth	Space	Class of Station	Definitions / Notes
AMATEUR-SATELLITE SERVICE				A radiocommunication service using space stations on earth satellites for the purpose of self-training, intercommunication and technical investigation carried out by amateurs, that is, by duly authorized persons interested in radio technique solely with a personal aim and without pecuniary interest.
TA		EA	AMATEUR-SATELLITE
BROADCASTING-SATELLITE SERVICE				A radiocommunication service in which signals transmitted or retransmitted by space stations are intended for direct reception by the general public. In the broadcasting-satellite service, the term “direct reception” shall encompass both individual reception (by simple domestic installations and in particular those possessing small antennae) and community reception (by receiving equipment, which in some cases may be complex and have antennae larger than those used for individual reception, and intended for use: by a group of the general public at one location; or through a distribution system covering a limited area).
		EB	SOUND BROADCASTING-SATELLITE
		EV	TELEVISION BROADCASTING-SATELLITE
EARTH EXPLORATION-SATELLITE SERVICE				A radiocommunication service between earth stations and one or more space stations, which may include links between space stations, in which information relating to the characteristics of the Earth and its natural phenomena including data relating to the state of the environment is obtained from active sensors or passive sensors on earth satellites; similar information is collected from airborne or earth-based platforms; such information may be distributed to earth stations within the system concerned; platform interrogation may be included. This service may also include feeder links necessary for its operation.
TW		EW	EARTH EXPLORATION-SATELLITE
Meteorological-Satellite Service				An Earth exploration-satellite service for meteorological purposes.
TM		EM	METEOROLOGICAL-SATELLITE
FIXED-SATELLITE SERVICE				A radiocommunication service between earth stations at given positions when one or more satellites are used; the given position may be a specified fixed point or any fixed point within specified areas; in some cases this service includes satellite-to-satellite links, which may also be operated in the inter-satellite service, the fixed-satellite service may also include feeder links for other space radiocommunication services.
TC		EC	FIXED-SATELLITE
TB			SATELLITE AERONAUTICAL EARTH	An earth station located at a specified fixed point on land to provide a feeder link for the aeronautical mobile-satellite service.
TI			SATELLITE COAST EARTH	An earth station located at a specified fixed point on land to provide a feeder link for the maritime mobile-satellite service.
TY			SATELLITE BASE EARTH	An earth station located at a specified point or within a specified area on land to provide a feeder link for the land mobile-satellite service.
VA			SATELLITE LAND EARTH	An earth station located at a specified point or within a specified area on land to provide a feeder link for the mobile-satellite service.
INTER-SATELLITE SERVICE				A radiocommunication service providing links between artificial earth satellites.
		ES	INTER-SATELLITE
MOBILE-SATELLITE SERVICE				A radiocommunication service: between mobile earth stations and one or more space stations, or between space stations used by this service; or between mobile earth stations by means of one or more space stations. This service may also include feeder links necessary for its operation.
		EI	MOBILE-SATELLITE
TE			SATELLITE EPIRB	An earth station intended to facilitate search and rescue operations.
[ VA ]	UA		SATELLITE LAND
Aeronautical Mobile-Satellite Service				A mobile-satellite service in which mobile earth stations are located on board aircraft; survival craft stations and emergency position-indicating radiobeacon stations may also participate in this service.
[ TB ]	TJ	EJ	AERONAUTICAL MOBILE-SATELLITE	TJ = AIRCRAFT EARTH (AES) :
Land Mobile-Satellite Service				A mobile-satellite service in which mobile earth stations are located on land.
[ TY ]	TU	EU	LAND MOBILE-SATELLITE	TU = MOBILE EARTH :
Maritime Mobile-Satellite Service				A mobile-satellite service in which mobile earth stations are located on board ships; survival craft stations and emergency position-indicating radiobeacon stations may also participate in this service.
[ TI ]	TG	EG	MARITIME MOBILE-SATELLITE	TG = SHIP EARTH :
RADIODETERMINATION-SATELLITE SERVICE				A radiocommunication service for the purpose of radiodetermination involving the use of one or more space stations. This service may also include feeder links necessary for its own operation.
TF	TL	EF	RADIODETERMINATION-SATELLITE
		DG	DIFFERENTIAL GLOBAL POSITIONING SYSTEM	A radiodetermination-satellite used for the transmission of differential correction data and related information (such as ionospheric data and RNSS satellite integrity information) as an augmentation to an RNSS system for the purpose of improved navigation accuracy.
Radiolocation-Satellite Service				A radiodetermination-satellite service used for the purpose of radiolocation. This service may also include the feeder links necessary for its operation.
		-	RADIOLOCATION-SATELLITE
Radionavigation-Satellite Service				A radiodetermination-satellite service used for the purpose of radionavigation. This service may also include feeder links necessary for its operation.
TN	UM	EN	RADIONAVIGATION-SATELLITE
Aeronautical Radionavigation-Satellite Service				A radionavigation-satellite service in which earth stations are located on board aircraft.
TZ	TO	EO	AERONAUTICAL RADIONAVIGATION-SATELLITE
Maritime Radionavigation-Satellite Service				A radionavigation-satellite service in which earth stations are located on board ships.
TX	TQ	EQ	MARITIME RADIONAVIGATION-SATELLITE
SPACE OPERATION SERVICE				A radiocommunication service concerned exclusively with the operation of spacecraft, in particular space tracking, space telemetry and space telecommand. These functions will normally be provided within the service in which the space station is operating.
TT		ET	SPACE OPERATION
SPACE RESEARCH SERVICE				A radiocommunication service in which spacecraft or other objects in space are used for scientific or technological research purposes.
TH		EH	SPACE RESEARCH
SPECIAL SERVICE (SPACE)				A radiocommunication service, not otherwise defined in this Section, carried on exclusively for specific needs of general utility, and not open to public correspondence.
		ME	SPACE	A mobile station located on an object which is beyond, is intended to go beyond, or has been beyond, the major portion of the Earth's atmosphere.
TP			SPACE RECEIVING	Receiving station only, connected with the general network of telecommunication channels.
Space Telecommand				The use of radiocommunication for the transmission of signals to a space station to initiate, modify or terminate functions of equipment on an associated space object, including the space station.
TD		ED	SPACE TELECOMMAND	Codes can also be used as a suffix.
Space Telemetry				The use of telemetry for the transmission from a space station of results of measurements made in a spacecraft, including those relating to the functioning of the spacecraft.
TR		ER	SPACE TELEMETERING	Codes can also be used as a suffix.
Space Tracking				Determination of the orbit, velocity or instantaneous position of an object in space by means of radiodetermination, excluding primary radar, for the purpose of following the movement of the object.
TK		EK	SPACE TRACKING	Codes can also be used as a suffix.
STANDARD FREQUENCY & TIME SIGNAL-SATELLITE SERVICE				A radiocommunication service using space stations on earth satellites for scientific, technical and other purposes, providing the transmission of specified frequencies, time signals, or both, of stated high precision, intended for general reception. This service may also include feeder links necessary for its operation.
		EE	STANDARD FREQUENCY-SATELLITE
		EY	TIME SIGNAL-SATELLITE

Last updated 2008-06-11 by William Hepburn. This list is in no way is meant to represent official usage.