electronic mobile station

- accepting station
- access station
- aerodynamic broadcast station
- affiliated station
- airborne decameter radio station
- Alcatel station
- all-mine telephone station
- amplifying station
- analog switching station
- analog-digital station
- analytical photogrammetric station
- automatic trunk station
- background station
- backhaul station
- backlogged station
- balanced station
- base station
- base-airborne station
- base-radio station
- BB-switching back-to-back station
- BB-switching end terminal station
- BB-switching n-way branching station
- beacon station
- boat-radio station
- booster station
- broadcasting node station
- broadcasting station
- broadcasting-satellite space station
- buffer station
- callers-telephone station
- car-subscriber station
- CB station
- central fire-alarm station
- central station
- central-searching station
- channel station
- channel-attached station
- civil band station
- class-A station
- class-B station
- class-C station
- class-D station
- coastal Earth station
- coastal station
- coastal terrestrial radio station
- commercial radio station
- communication relay station
- compact hand station
- computerized data exchange station
- container terrestrial station
- control station
- control-measuring station
- converted-base station
- crossing station
- data station
- data-transmission station
- destination station
- digital communication station
- digital photogrammetic station
- digital switching station
- digital terminal station
- display station
- diving telephone station
- drift station
- Earth station
- electronic mobile station
- emergency frequency station
- emergency-position indicating radiobeacon station
- emergency-radio station
- exchange-service station
- feeder-amplifier station
- fifth generation radio station
- fifth-class mobile station
- first-class mobile station
- fixed control station
- fixed station
- fixed-frequency station
- fixed-microwave auxiliary station
- FM-broadcasting station
- forwarding station
- four-course radio-range station
- fourth class mobile station
- fourth-generation radio station
- gate station
- graphic station
- ground station
- ground wireless station
- head wagon radio station
- head-end station
- heavy mobile station
- helicopter radio station
- hydroacoustic station
- IF drop insertion station
- IF repeating branching station
- IF repeating through station
- IF repeating TV drop insertion station
- image station
- industrial-communication station
- inquiry station
- integrated station
- intercom station
- interfered radio station
- interferencing radio station
- intermediate station
- intradepartment-communication center station
- land mobile station
- land station
- life-raft radio station
- light-weight mobile station
- line station
- line waterside USB-station
- line-network station
- locomotive radio station
- loudspeaking-communication station
- low-power television frequency station
- magnetic-tape station
- main station
- major relay station
- managing-radio station
- manual-trunk station
- master station
- media command station
- media control station
- meter-band station
- microwave repeating station
- microwave station
- minor-relay station
- mobile-Earth station
- mobile-radio station
- mobile-television station
- mobile-tropospheric station
- movable radio station
- multiband station
- municipal radio station
- network station
- newsroom station
- nodal coastal radio station
- nodal-communication station
- nonmagnetic diving station
- nonserviced repeater station
- on-board station
- operative-communication station
- passive station
- physical station
- piezoelectric batteryless station
- pipeline control USB-station
- play station
- pole-mounted station
- portable radio station
- portable relay station
- primary station
- priority mobile station
- rack-mounted station
- radio station
- radio-beacon monitor station
- radio-beacon station
- radiodirection-finder station
- radio-positioning land station
- radio-positioning mobile station
- radio-range station
- radiosonde station
- radiotelegraph station
- radiotelephone station
- railway radio station
- reading station
- readout station
- receiving-earth station
- regenerating station
- relay station
- remote feeding station
- remote forwarding station
- remote monitoring station
- repeater station
- reserve terrestrial radio station
- retransmitting station
- road station
- rural-subscriber station
- satellite station
- second class mobile station
- secondary station
- sectional communication center station
- semistationary terrestrial station
- sensing station
- serviced station
- serviced-repeater station
- ship-Earth station
- ship-radio station
- six-channel relay transmission station
- slave station
- solar radio station
- source station
- spark-safe radio station
- standard frequency-and-time signal station
- state radio station
- state relay station
- stationary relay station
- stationary station
- stationary terrestrial station
- subcontrol station
- subscriber station
- subscription station
- supervised station
- switching station
- tail wagon radio station
- telecode communication station
- telegraph station
- telemetering station
- telephone-and-telegraph station
- television pickup station
- temporary fire communiation station
- terminal communication station
- terminal exchange station
- terminal network station
- terminal telegraph station
- terrestrial ship radio station
- terrestrial station
- terrestrial terminal station
- terrestrial-coastal station
- third class mobile station
- three-wire diving station
- toll station
- train communication station
- transfer station
- transmitting Earth station
- transport station
- transportable earth station
- tributary station
- tropospheric communication station
- trunk telephone station
- TV-transmitting station
- ultra-short-band station
- underground terminal station
- unified diving station
- unmanned station
- USB-station
- user station
- videotex station
- wall-mounted station
- working station

- number of cylinders
- number of epochs
- number of heads
- number of hidden layers
- number of logical cylinders
- number of logical heads
- number of logical sectors
- number of primary turns
- number of quantizing levels
- number of secondary turns
- number of sectors per track
- number of sessions
- number of states
- number of tracks
- number of turns
- Abbe number
- absolute frame number
- abstract number
- account number
- additional quantum number
- algebraic number
- angular mode number
- assigned number
- Avogadro number
- axial mode number
- azimuthal quantum number
- base number
- Betti number
- binary number
- binary-coded decimal number
- block number
- Brinell hardness number
- bus number
- call number
- called directory number
- called terminal number
- calling directory number
- calling terminal number
- cardinal number - Cayley numbers
- channel number - cliquomatic number
- cluster number
- coded decimal number
- complex number
- composite number
- concrete number
- condition number
- controller number
- Conway number
- coprime numbers
- counting number
- customer number
- cutoff wave number
- cylinder number
- device number
- directory number
- double-length number
- double-precision number
- drive number
- effective number of bits - even number
- expected number of augmented doubles
- extension number
- f-number
- Fibonacci numbers
- fixed-point number
- floating-point number
- font number
- fractional number - Fresnel number
- function number - Grashof number
- groove number
- Gummel number
- Hartman number
- head number
- hexadecimal number - ID number
- identification number
- imaginary number
- infinite repeating decimal number
- inner quantum number
- interconnection level number
- international number
- Internet number
- internet number
- irrational number
- job number
- Julian number
- line number
- logical block number
- logical cylinder number
- logical device number
- logical head number
- logical sector number - Lorentz number
- fuzzy number
- L-R fuzzy number
- Lundquist number
- magic number
- magnetic quantum number
- magnetic Reynolds number
- main quantum number
- mass number
- maximum usable read number
- Mersenne prime numbers
- mixed number - multiple number
- natural number
- network number - normalized wave number
- Nusselt number
- occupation number
- odd number
- orbital quantum number
- ordinal number
- page number
- perfect number
- personal communication number - physical cylinder number
- physical head number
- physical sector number
- portable serial number - preprogrammed number
- prime number
- principal quantum number
- priority number
- propagation number
- pseudodecimal number
- pseudorandom number
- quantum number
- radial mode number
- radix number
- random number
- rational number
- read number
- read-around number
- real number - repeating decimal number
- resolvable element number
- revolution number
- Reynolds number
- round-off number
- scanning-lines number
- Schmidt number
- security service number
- seed number
- serial number
- Sherwood number
- signed number
- spin quantum number
- SS number
- statement number
- subnet number
- subscriber number
- surreal number
- T-number
- telephone number
- ticket number
- tolerant fuzzy number
- toll-free number
- total quantum number
- track number
- transcendental number
- transfinite number
- translational quantum number
- transverse wave number
- trapezoidal fuzzy number
- triangular fuzzy number
- unimodal fuzzy number
- unlisted phone number
- unsigned number
- version number
- vias number
- vibrational quantum number
- Vickers number
- volume reference number
- volume serial number
- wave number
- whole number
- winding number
- Wolf number

- Abbe number
- absolute frame number
- abstract number
- account number
- additional quantum number
- algebraic number
- angular mode number
- assigned number
- Avogadro number
- axial mode number
- azimuthal quantum number
- base number
- Betti number
- binary number
- binary-coded decimal number
- block number
- Brinell hardness number
- bus number
- call number
- called directory number
- called terminal number
- calling directory number
- calling terminal number
- card select number
- cardinal number
- Catalan's numbers
- Cayley numbers
- channel number
- ciphering key sequence number
- clique number
- cliquomatic number
- cluster number
- coded decimal number
- complex number
- composite number
- concrete number
- condition number
- controller number
- Conway number
- coprime numbers
- counting number
- customer number
- cutoff wave number
- cylinder number
- device number
- directory number
- double-length number
- double-precision number
- drive number
- effective number of bits
- electronic ID number
- enterprise number
- even number
- expected number of augmented doubles
- extension number
- f number
- Fibonacci numbers
- fixed-point number
- floating-point number
- font number
- fractional number
- frame number
- frequency-band number
- Fresnel number
- function number
- fuzzy number
- Ginsburg number
- Grashof number
- groove number
- Gummel number
- Hartman number
- head number
- hexadecimal number
- hopping sequence number
- host number
- ID number
- identification number
- imaginary number
- infinite repeating decimal number
- inner quantum number
- interconnection level number
- international number
- Internet number
- internet number
- irrational number
- job number
- Julian number
- line number
- logical block number
- logical cylinder number
- logical device number
- logical head number
- logical sector number
- logical unit number
- longitudinal propagation number
- Lorentz number
- Lundquist number - magnetic Reynolds number
- main quantum number
- mass number
- maximum usable read number
- Mersenne prime numbers
- mixed number
- mobile station international ISDN number
- mode number
- multiple number
- natural number
- network number
- non-registered parameter number
- normal fuzzy number
- normalized wave number
- number of augmented doubles
- number of cylinders
- number of epochs
- number of heads
- number of hidden layers
- number of logical cylinders
- number of logical heads
- number of logical sectors
- number of primary turns
- number of quantizing levels
- number of secondary turns
- number of sectors per track
- number of sessions
- number of states
- number of tracks
- number of turns
- Nusselt number
- occupation number
- odd number
- orbital quantum number
- ordinal number
- page number
- perfect number
- personal communication number
- personal identification number
- physical block number
- physical cylinder number
- physical head number
- physical sector number
- portable serial number
- portable user number
- Prandtl number
- preprogrammed number
- prime number
- principal quantum number
- priority number
- propagation number
- pseudodecimal number
- pseudorandom number
- quantum number
- radial mode number
- radix number
- random number
- rational number
- read number
- read-around number
- real number
- registered parameter number
- release number
- repeating decimal number
- resolvable element number
- revolution number
- Reynolds number
- round-off number
- scanning-lines number
- Schmidt number
- security service number
- seed number
- serial number
- Sherwood number
- signed number
- spin quantum number
- SS number
- statement number
- subnet number
- subscriber number
- surreal number
- T number
- telephone number
- ticket number
- tolerant fuzzy number
- toll-free number
- total quantum number
- track number
- transcendental number
- transfinite number
- translational quantum number
- transverse wave number
- trapezoidal fuzzy number
- triangular fuzzy number
- unimodal fuzzy number
- unlisted phone number
- unsigned number
- version number
- vias number
- vibrational quantum number
- Vickers number
- volume reference number
- volume serial number
- wave number
- whole number
- winding number
- Wolf number

- acoustic alarm system
- acoustic image system
- acoustic systems
- actiontrack system
- active IR-system
- actuator system
- adaptive communication system
- adaptive teleinformation system
- adaptive telemetering system
- advanced information system
- Afsatcom system
- air system
- aircraft intercommunication system
- airfield communication system
- air-ground automatic system
- airline reservation system
- air-to-ground TV system
- alarm signal system
- alarm system
- all-channel signaling system
- ALL-IN-ONE system
- alphanumeric system
- amplified speaker system
- amplitude shift-keying system
- AMPS system
- analog cellular communication system
- analog cellular system
- analog component video system
- analog television system
- analog tropospheric system
- anisochronous system
- antenna system
- antitheft system
- AR system
- Arabsat system
- ASK system
- associated channel analog system
- asynchronous address communication system
- audio recording system
- Aurora system
- Aussat system
- automatic communication system
- automatic connection establishment system
- automatic control system
- automatic data acquisition system
- automatic telegraphy system
- automatic telephone system
- automatic tuning system
- automatized cellular system
- auxiliary alarm system
- balanced cable transmission system
- band sharing system
- base station system
- baseband system
- basic input/output system
- bass-reflex speaker system
- batch processing system
- batch transmission system
- batch-and-forward system
- batteryless system
- bilateral CTV system
- binary tariff system
- biocontrol system
- bit parallel interface system
- bit transport system
- bridge duplex system
- broadband mobile system
- broadcast satellite system
- broadcasting delivery media systems
- burglar alarm system
- byte-serial interface system
- cabinet system
- cabinetless system
- cable distribution system
- cable TV system
- call-accounting system
- call-answering system
- call-counting system
- call-distributing system
- call-processing system
- call-queueing system
- camp-on system
- CAPTAIN system
- car component audio system
- carrier reinsertion system
- carrier system
- carrier-communication system
- carrier-current communication system
- Cassegrain-Schmidt system
- cassette recording system
- cassette reproducing system
- CATRIN system
- caution system
- CD 900 system
- cellular system
- cellular-radio system
- central-battery system
- centralized control system
- chirp binary telegraph system
- cipher system
- circuit switched telecommunication system
- circuit switching telecommunication system
- circular telecontrol system
- clock system
- closed-circuit communication system
- closed-circuit telegraph system
- closed-numbering system
- code-dependent system
- code-division multiple access system
- code-independent system
- code-insensitive system
- code-sensitive system
- coding system
- coherent fiber-optic system
- collimating system
- collocated system
- color separating system
- combined numbering system
- combined power supply system
- combined satellite communication system
- common-battery system
- common-carrier system
- common-channel signaling system
- common-engineering communication system
- common-purpose cellular system
- common-using band system
- common-using cordless telephone system
- common-using paging system
- communication system
- communication traffic system
- communications system
- community antenna system
- community antenna television system
- community TV-system
- commununication switching system
- compact disk digital audio system
- compatible color television system
- compatible single sideband system
- compatible single-band system
- compatible TV-system
- complex radio communication system
- computer vision system
- computer-telephone system
- Comsar system
- Comsat system
- Conax system
- concentrated-insonation system
- conference system
- conference-communication system
- congested system
- congress-class system
- constant-current system
- control generating system
- conventional television system
- Conversant system
- cordless-communication system
- crossbar system
- crossed-coincident microphone system
- Crosspoint system
- CSE system
- C-system
- cubical video projecting system
- data processing system
- data system
- data transport system
- data-collection system
- data-compression system
- data-exchange system
- dataflow system
- data-gathering system
- data-handling system
- data-measuring system
- data-reduction system
- data-transmission system
- Decca Navigator system
- DECfax system
- decision-feedback system
- dedicated control channel system
- dedicated multimedia system
- delta-sigma system
- deluxe presentation system
- departmental communication system
- desktop-video system
- DFS/Copernicus system
- dial-telephone system
- differential phase shift-keying system
- differential-duplex system
- differential-magnetic system
- digital camera system
- digital hybrid-key telephone system
- digital mass storage system
- digital microwave radio transmission system
- digital telephone communication system
- digital transmission system
- digital TV-communication system
- Digital UNIX system
- digital-analog system
- digital-cellular system
- digital-data modulation system
- digital-effect system
- digital-message entry system
- digital-termination system
- direct-broadcasting satellite system
- directing system
- direct-modulation system
- direct-sequence system
- direct-telephone communication system
- discrete communication system
- discrete sound system
- discrete-addressing system
- disk-operating system
- DISOSS system
- dispatch telephone communication system
- dispatch-center system
- dispersed-insonation system
- distributed-insonation system
- distributed-processing system
- documental-type communication system
- Dolby systems
- domestic satellite communication system
- double-band telephone communication system
- double-channel transmission system
- double-current transmission system
- double-pole communication system
- double-sideband large carrier system
- DSCS system
- D-system
- dual-cable system
- dual-reflector system
- duplexed system
- Earth-to-space transmission system
- ECM system
- electric communication system
- electronic antishock system
- electronic data-gathering system
- electronic data-processing system
- electronic-message system
- electronic-scanning system
- electronic-switching system
- Ellipso system
- emergency telephone communication system
- emergency-broadcast system
- EMX system
- equidistant system
- error-correction system
- error-detection system
- Eutelsat system
- extensible system
- external paging system
- facsimile system
- fast-acting servicing system
- fault-tolerant system
- fax communication system
- fax transmitting system
- feed system
- fiber transmission system
- fiber-optic transmission system
- field-sequential system
- final mile system
- finishing system
- fire alarm system
- fire warning system
- first generation cellular system
- five-channel communication system
- fixed satellite system
- Flexcam system
- flexible access system
- Flitsatcom system
- focusing system
- four-channel sound system
- four-dimensional system
- four-wire telephone communication system
- frame-sequential system
- frequency shift-keying system
- frequency-carrier system
- frequency-control system
- front-bass reflex speaker system
- fully digital system
- gate system
- Gaussian system
- generalized system
- generating dynamic system
- generator-dc-motor system
- GIGASET radio system
- global positioning system
- Global system
- Gopher system
- grandfathered system
- group-alerting and dispatching system
- guide system
- hard-wired CCTV system
- hazard system
- helical-scan system
- HF-synchronizing system
- high-precision navigating system
- Hi-linear system
- home system
- home-telephone system
- home-type system
- homing-guidance system
- host system
- hydroacoustic system
- ideal communication system
- idealized system
- image informaion system
- image-forming system
- immedial servicing system
- incompatible system
- independent system
- information retrieval system
- information system radio system
- information system
- information-feedback system
- information-measuring system
- infrared alarm system
- Inmarsat system
- Inmarsat-A system
- Inmarsat-B system
- Inmarsat-C system
- Inmarsat-D system
- Inmarsat-M system
- Inmarsat-P system
- integrated telephone system
- integrated videographic teleconferencing system
- integrated-antenna system
- integrated-communication system
- integrated-modulation system
- integrated-office system
- Intelsat system
- interactive system
- intercarrier-sound system
- intercommunication system
- intercontinental tropospheric system
- interlock system
- intermachine exchange system
- intermediate system
- international communication system
- interphone system
- Intervision system
- intraband signaling system
- intruder alarm system
- inward-outward dialing system
- ionoscatter system
- ionosphere sounder system
- ionospheric system
- Iridium system
- isolated system
- Italsat system
- J-carrier system
- joint-multichannel trunking and switching system
- K-carrier system
- key system
- key-telephone system
- land satellite communication system
- large-grained communication system
- laser communication system
- L-band satellite system
- L-carrier system
- Leasat system
- lightning protection system
- limited distortion system
- line amplifiers system
- link system
- little-channel relay system
- local alarm system
- local battery system
- local communication system
- local radio paging system
- long-haul system
- long-range system
- loop system
- loud-speaking communication system
- low-traffic system
- magnetic tape recording system
- Mail system
- management-information system
- manual cellular system system
- manual telephone set system
- Marisat system
- master television system
- master-antenna television system
- matrix sound system
- message feedback system
- message procession system
- message registration system
- message-switched system
- meteor radio system
- Metrobus system
- micro component system
- Micro Press Cluster Printing system
- micro-lens system
- microprocessor system
- microwave relay system
- midi system
- mine radio telephone system
- mini system
- mixed media system
- mixed numbering system
- mobile cellular communication system
- mobile land communication system
- mobile radio system
- mobile relay system
- mobile system
- modulated system
- monetary mobile system
- MS-Mail system
- multiareal system
- multicassette system
- multichannel telephone system
- multicomputer system
- multidisk system
- multiformat recording system
- multifrequency tone signaling system
- multiguard system
- multilevel mixed system
- multimedia system
- multiple-channel system
- multiqueue system
- Multiscrypt system
- multistandard system
- multitrack editing system
- mutibeam antenna system
- muting system
- Nagravision system
- NAMTS system
- narrow-angle TV system
- national communication system
- navigation system
- n-channel communication system
- n-channel DPSK system
- n-channel transmission system
- network standalone system
- network system
- network-operation system
- networks numbering system
- neutral direct-current telegraph system
- n-head video system
- NMT system
- noise-reduction system
- nonhoming tuning system
- noninterlaced television system
- nonsegmented system
- Norsat system
- n-satellite system system
- n-tone DPSK system
- n-tone MFSK system
- NTSC system
- NTT system
- obligatory message system
- Odyssey system
- off-line system
- on-line computer system
- on-line secured system
- open numbering system
- open system
- operative-engineering communication system
- opposite signals system
- optical-communication system
- optical-information system
- optical-projection system
- optoelectronic system
- oscillating system
- oscillation system
- outband signaling system
- package-and-resource tracking system
- pagemaster system
- paging system
- PAL system
- parametric system
- PATHWORKS system
- pattern recognition system
- personal holding guard system
- phase shift-keying system
- phone system
- Piccolo system
- pilot-controller system
- polar direct-current telegraph system
- portable mobile system
- power control system
- power controlling system
- power-line carrier system
- power-supply system
- press-to-talk system
- Prestel system
- primary-supply system
- privacy system
- private branch paging system
- private movable system
- private videodata system
- private videotex system
- process-interface system
- PROFS system
- programmable cross-connect system
- programmable cross-connected system
- programmed radio system
- prompting system
- protected wireline distribution system
- protection system
- pseudoquadraphony system
- pseudotrunking system
- public videodata system
- public videotex system
- pulse-code system
- pulse-frequency system
- pulse-time system
- quadraphonic sound system
- quadruple-diversity system
- R1 system
- R2 system
- radio buoy system
- radio command system
- radio communication system
- Radio Data system
- radio facsimile system
- Radiocom 2000 system
- radio-control system
- radio-paging system
- radio-relay system
- radiosonde-radio-wind system
- radio-telemetering system
- real time pulse-echo system
- real time system
- receiver lockout system
- recording system
- recovery system
- redundant system
- reference-information system
- regional electronic payment system
- relay-radio system
- remote concentrating system
- remote control system
- remote diagnostic system
- remote information system
- remote semiconcentrating system
- remote sensing system
- remote signaling system
- rendering system
- rerecording system
- reserved servicing system
- RF/Transmission system
- rotary system
- safety alarm system
- safety system
- Satcom system
- satellite comminication system
- satellite marine comminication system
- Satellite Master Antenna Television system
- satellite radio system
- satellite-aircraft communication system
- SB-communication system
- SBL communication system
- scalable system
- scanning trunking system
- SCO UNIX system
- searchless identification system
- seat reservation system
- SECAM system
- second generation cellular system
- second room system
- secondary supply system
- secrecy system
- section communication system
- security system
- segmented system
- seismic system
- selective calling system
- selective frequency base station system
- selective protective system
- selective telephone system
- self-adjusting system
- self-balancing differential system
- self-contained system
- self-test system
- selsyn system
- semiautomatic-switching system
- semiautomatized cellular system
- sensory system
- servo system
- shadow-batch system
- short-haul microwave system
- Sicral system
- Sigma Servo system
- signal system
- simplex movable system
- single-band transmission system
- single-busbar system
- single-cable communication system
- single-cable system
- single-channel system
- single-current transmission system
- single-pulse tracking system
- Skynet system
- small-grained communication system
- SmarTrunk II radio communication system
- solid-state uninterruptible power battery system
- Sony bus system
- sound alarm system
- sound equalization system
- sound navigation system
- sound reinforcement system
- sound warning system
- space-division system
- space-switched system
- spark-safe system
- speaker system
- special communication system
- speech-processing system
- speech-recognition system
- split-speaker system
- spread-spectrum system
- stabilizing system
- stage monitoring system
- standalone double point system
- star-circuit system
- STAREX CMX system
- starting communication system
- start-stop system
- stationary satellite system
- step-by-step system
- stereo sound system
- stereophonic sound system
- storage system
- storage-and-retrieval system
- Strowger system
- submarine fiber-optic system
- subprimary digital transmission system
- subscriber carrier system
- subscriber switching system
- suffix system
- Supersat system
- supervisory control system
- surround sound system
- switched telecommunication system
- switching system
- sync communication system
- synchro system
- synchronous communication system
- synchronous digital system
- TAGS system
- tandem system
- tariffication system
- T-carrier system
- TDF system
- teleautomatic system
- Telecom system
- telecommunication system
- telecommunications system
- telecommunication-service priority system
- telecommunications-service priority system
- telecontrol system
- telemechanic system
- telemetering system
- telemetry system
- telephone system
- telephone-answering system
- telephone-communication system
- telephone-communications system
- teleprocessing system
- Telesat system
- teletex system
- teletypewriter system
- television-telephone system
- Tele-X system
- Telsar system
- terminal system
- terrestrial radio-relay system
- theft-prevention system
- thin-route system
- third generation communication system
- three-axle stabilizing system
- three-channel HF-telephone system
- three-channel transmission system
- three-color system
- three-lens optical system
- three-primary system
- three-wire system
- time-dissemination system
- time-frequency hopping system
- time-switched system
- total access communication system
- total area coverage system
- transmission system
- trichromatic system
- triple-interlace system
- triplex system
- trunk communication system
- TV-observation system
- twelve-channel transmission system
- two-arm system
- two-band system
- two-color system
- two-roller transfer system
- two-step control system
- two-way CATV system
- two-way system
- two-wire telephone communication system
- ultra-match system
- ULTRIX system
- unified radioaccess system
- unilateral-control system
- unilateral-synchronization system
- uninterruptible-power system
- Unisat system
- universal alarm system
- universal-battery system
- universal-electronic system
- universal-movable system
- Uniworks system
- vestigial-sideband system
- video editing system
- video home system
- video recording system
- videocom system
- videoteleconference system
- videotex system
- virtual studio system
- vision system
- vocoder system
- voice dialog system
- voice frequency carrier telegraph system
- voice modulation system
- voice post system
- volume control system
- waiting system
- warning system
- watch system
- watching system
- waterside facsimile communication system
- wave-propagating system
- wide-angle TV system
- Winfax Pro system
- wired broadcasting system
- wireless CCTV system
- wireless home system
- wireless infrared speaker system
- wire-radio communication system
- XY system
- zone-selective protection system
- zoning system