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1 frequency shift telegraphy
frequency shift telegraphy Frequenzumtasttelegrafie fEnglish-German dictionary of Electrical Engineering and Electronics > frequency shift telegraphy
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2 frequency-shift telegraphy
English-Russian dictionary of telecommunications and their abbreviations > frequency-shift telegraphy
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3 frequency-shift telegraphy
1) Техника: частотная телеграфная связь2) Телекоммуникации: частотное телеграфированиеУниверсальный англо-русский словарь > frequency-shift telegraphy
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4 frequency-shift telegraphy
< tele> ■ Frequenzumtasttelegrafie fEnglish-german technical dictionary > frequency-shift telegraphy
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5 frequency-shift telegraphy
telegrafie met frequentieverschuivingEnglish-Dutch technical dictionary > frequency-shift telegraphy
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6 Frequency Shift Voice Frequency Telegraphy (FSVFT)
тональная телеграфия с частотной манипуляциейEnglish-Russian dictionary of modern telecommunications > Frequency Shift Voice Frequency Telegraphy (FSVFT)
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7 frequency telegraphy
= frequency-shift telegraphy частотное телеграфированиеEnglish-Russian dictionary of telecommunications and their abbreviations > frequency telegraphy
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8 telegraphy
1) телеграфия, телеграфная связь•- acoustical telegraphy
- alphabetic telegraphy
- amplitude telegraphy
- carrier telegraphy
- continuous wave telegraphy
- dc telegraphy
- document facsimile telegraphy
- double-pole telegraphy
- duplex telegraphy
- four-frequency diplex telegraphy
- frequency telegraphy
- frequency-shift telegraphy
- ground-to-air HF-telegraphy
- harmonic telegraphy
- high-frequency carrier telegraphy
- line telegraphy
- manual telegraphy
- multichannel voice-frequency telegraphy
- multiplex telegraphy
- octuplex telegraphy
- phase telegraphy
- photograph-facsimile telegraphy
- point-to-point telegraphy
- printing telegraphy
- radio telegraphy
- railway telegraphy
- single-pole telegraphy
- start-stop telegraphy
- subaudio telegraphy
- subscriber telegraphy
- supersonic telegraphy
- synchronous telegraphy
- synphased telegraphy
- teleprinting telegraphy
- tone telegraphy
- undecaying telegraphy
- wire telegraphy
- wireless telegraphyEnglish-Russian dictionary of telecommunications and their abbreviations > telegraphy
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9 frequency
1) частота
2) многократность
3) частотно
4) частотность
5) частотный
6) темп
– allocate frequency
– alternate frequency
– angular frequency
– antiresonance frequency
– antiresonant frequency
– assigned frequency
– audio frequency
– base frequency
– basic frequency
– beat frequency
– break frequency
– buoyancy frequency
– calling frequency
– carrier frequency
– cell frequency
– collision frequency
– commercial frequency
– component frequency
– conversion frequency
– critical frequency
– crossover frequency
– cutoff frequency
– cyclotron frequency
– difference frequency
– dot frequency
– driving frequency
– espected frequency
– field frequency
– fixed frequency
– flicker frequency
– formant frequency
– fractional frequency
– frame frequency
– free-running frequency
– frequency alignment
– frequency allocation
– frequency analysis
– frequency band
– frequency calibration
– frequency changer
– frequency channel
– frequency characteristic
– frequency code
– frequency compression
– frequency control
– frequency converter
– frequency correction
– frequency curve
– frequency departure
– frequency deviation
– frequency discrimination
– frequency distortion
– frequency distribution
– frequency diversity
– frequency divider
– frequency division
– frequency domain
– frequency doubler
– frequency drift
– frequency feedback
– frequency function
– frequency in pitch
– frequency in roll
– frequency interleaving
– frequency interpretation
– frequency isolation
– frequency jitter
– frequency jumping
– frequency limit
– frequency lock-in
– frequency mark
– frequency marker
– frequency match
– frequency meter
– frequency modulated
– frequency modulation
– frequency modulator
– frequency monitoring
– frequency multiplex
– frequency multiplication
– frequency multiplier
– frequency nominal
– frequency of event
– frequency polygon
– frequency pulling
– frequency range
– frequency ratio
– frequency response
– frequency selective
– frequency setting
– frequency shift
– frequency spacing
– frequency spectrum
– frequency splitting
– frequency spread
– frequency stability
– frequency stabilization
– frequency standard
– frequency synthesis
– frequency synthesizer
– frequency telegraphy
– frequency tolerance
– frequency transformation
– frequency transformer
– frequency translation
– frequency tripler
– frequency tuning
– frequency wobbling
– fundamental frequency
– genotype frequency
– harmonic frequency
– heterodyne frequency
– high frequency
– hold on to frequency
– hypersonic frequency
– idler frequency
– image frequency
– increase the frequency
– infrasonic frequency
– injection frequency
– instantaneous frequency
– intermediate frequency
– ion plasma frequency
– Larmor frequency
– laser frequency
– line frequency
– lock on frequency
– lowest-useful frequency
– magnetoplasma frequency
– marking frequency
– maser frequency
– master frequency
– modulating frequency
– modulation frequency
– multiple frequency
– multiplier of frequency
– natural frequency
– network frequency
– non-dimensional frequency
– operation frequency
– oscillation frequency
– oscillator frequency
– pedestal frequency
– penetration frequency
– picture frequency
– pilot frequency
– pitch frequency
– plasma frequency
– precessional frequency
– pump frequency
– quench frequency
– radio frequency
– rated frequency
– relative frequency
– repetition frequency
– resonance frequency
– resonant frequency
– ripple frequency
– scan frequency
– scanning frequency
– scattering frequency
– screen frequency
– set up fixed frequency
– set up frequency
– side frequency
– signal frequency
– slip frequency
– spacing frequency
– spatial frequency
– standard frequency
– Stokes frequency
– straight-line frequency
– subcarrier frequency
– subsonic frequency
– sum frequency
– superhigh frequency
– switching frequency
– synchronous frequency
– threshold frequency
– tracking frequency
– translate frequency
– tune to frequency
– ultra-high frequency
– ultrasonic frequency
– vibration frequency
– voice frequency
– wave frequency
– working frequency
– zero frequency
additive frequency mixing — преобразование частоты аддитивное
amplitude frequency distortion — амплитудно-частотное искажение
automatic frequency control — частотная АПЧ, автоматическая настройка частоты
automatic frequency unloading — разгрузка автоматическая частотная
carrier frequency system — система передачи с частотным разделением каналов
commutator-type frequency converter — коллекторный преобразователь частот
compensation frequency telegraphy — телеграфирование частотное компенсационное
compound frequency distribution — <math.> плотность распределения осредненная
decibel-log frequency characteristic — логарифмическая амплитудно-частотная характеристика
flatness of a frequency curve — сглаженность кривой плотности
frequency compensated amplifier — усилитель корректированный
frequency deviation meter — <tech.> стабилометр частоты
frequency domain spectroscopy — спектроскопия стационарная, спектроскопия частотная
frequency force factor — <electr.> коэффициент силовой частоты
kurtosis of a frequency curve — эксцесс плотности распределения
kurtosis of frequency curve — эксцесс плотности распределения
molecular rotation frequency — вращательная частота молекулы
moment of a frequency distributi — момент распределения вероятности
multiple-position frequency telegraphy — телеграфия частотная многопозиционная
operation frequency range — рабочий диапазон частот прибора СВЧ
parasite frequency modulation — паразитная частотная модуляция
roll-off of frequency response — завал частотной характеристики
signal increases in frequency — сигнал увеличивается по частоте
static frequency converter — статический преобразователь частоты
subcarrier frequency modulation — частотная модуляция с поднесущей
thyratron frequency changer — тиратронный преобразователь частоты
time-sharing two frequency laser — лазер с попеременной генерацией двух частот
transient frequency jitter — < radio> дергание частоты
valve-type frequency converter — вентильный преобразователь частоты
variable frequency oscillator — генератор плавного диапазона
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10 voice-frequency telegraphy
1. тональное телеграфирование2. тональная телеграфияEnglish-Russian big polytechnic dictionary > voice-frequency telegraphy
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11 infra-acoustic telegraphy
English-Russian big polytechnic dictionary > infra-acoustic telegraphy
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12 subaudio telegraphy
English-Russian big polytechnic dictionary > subaudio telegraphy
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13 superaudio telegraphy
English-Russian big polytechnic dictionary > superaudio telegraphy
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14 syntonic telegraphy
English-Russian big polytechnic dictionary > syntonic telegraphy
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15 system
1) система; комплекс2) метод; способ3) канал•- 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 systemEnglish-Russian dictionary of telecommunications and their abbreviations > system
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16 Poulsen, Valdemar
[br]b. 23 November 1869 Copenhagen, Denmarkd. 23 July 1942 Gentofte, Denmark[br]Danish engineer who developed practical magnetic recording and the arc generator for continuous radio waves.[br]From an early age he was absorbed by phenomena of physics to the exclusion of all other subjects, including mathematics. When choosing his subjects for the final three years in Borgedydskolen in Christianshavn (Copenhagen) before university, he opted for languages and history. At the University of Copenhagen he embarked on the study of medicine in 1889, but broke it off and was apprenticed to the machine firm of A/S Frichs Eftf. in Aarhus. He was employed between 1893 and 1899 as a mechanic and assistant in the laboratory of the Copenhagen Telephone Company KTAS. Eventually he advanced to be Head of the line fault department. This suited his desire for experiment and measurement perfectly. After the invention of the telegraphone in 1898, he left the laboratory and with responsible business people he created Aktieselskabet Telegrafonen, Patent Poulsen in order to develop it further, together with Peder Oluf Pedersen (1874– 1941). Pedersen brought with him the mathematical background which eventually led to his professorship in electronic engineering in 1922.The telegraphone was the basis for multinational industrial endeavours after it was demonstrated at the 1900 World's Exhibition in Paris. It must be said that its strength was also its weakness, because the telegraphone was unique in bringing sound recording and reproduction to the telephone field, but the lack of electronic amplifiers delayed its use outside this and the dictation fields (where headphones could be used) until the 1920s. However, commercial interest was great enough to provoke a number of court cases concerning patent infringement, in which Poulsen frequently figured as a witness.In 1903–4 Poulsen and Pedersen developed the arc generator for continuous radio waves which was used worldwide for radio transmitters in competition with Marconi's spark-generating system. The inspiration for this work came from the research by William Duddell on the musical arc. Whereas Duddell had proposed the use of the oscillations generated in his electric arc for telegraphy in his 1901 UK patent, Poulsen contributed a chamber of hydrogen and a transverse magnetic field which increased the efficiency remarkably. He filed patent applications on these constructions from 1902 and the first publication in a scientific forum took place at the International Electrical Congress in St Louis, Missouri, in 1904.In order to use continuous waves efficiently (the high frequency constituted a carrier), Poulsen developed both a modulator for telegraphy and a detector for the carrier wave. The modulator was such that even the more primitive spark-communication receivers could be used. Later Poulsen and Pedersen developed frequency-shift keying.The Amalgamated Radio-Telegraph Company Ltd was launched in London in 1906, combining the developments of Poulsen and those of De Forest Wireless Telegraph Syndicate. Poulsen contributed his English and American patents. When this company was liquidated in 1908, its assets were taken over by Det Kontinentale Syndikat for Poulsen Radio Telegrafi, A/S in Copenhagen (liquidated 1930–1). Some of the patents had been sold to C.Lorenz AG in Berlin, which was very active.The arc transmitting system was in use worldwide from about 1910 to 1925, and the power increased from 12 kW to 1,000 kW. In 1921 an exceptional transmitter rated at 1,800 kW was erected on Java for communications with the Netherlands. More than one thousand installations had been in use worldwide. The competing systems were initially spark transmitters (Marconi) and later rotary converters ( Westinghouse). Similar power was available from valve transmitters only much later.From c. 1912 Poulsen did not contribute actively to further development. He led a life as a well-respected engineer and scientist and served on several committees. He had his private laboratory and made experiments in the composition of matter and certain resonance phenomena; however, nothing was published. It has recently been suggested that Poulsen could not have been unaware of Oberlin Smith's work and publication in 1888, but his extreme honesty in technical matters indicates that his development was indeed independent. In the case of the arc generator, Poulsen was always extremely frank about the inspiration he gained from earlier developers' work.[br]Bibliography1899, British patent no. 8,961 (the first British telegraphone patent). 1903, British patent no. 15,599 (the first British arc-genera tor patent).His scientific publications are few, but fundamental accounts of his contribution are: 1900, "Das Telegraphon", Ann. d. Physik 3:754–60; 1904, "System for producing continuous oscillations", Trans. Int. El. Congr. St. Louis, Vol. II, pp. 963–71.Further ReadingA.Larsen, 1950, Telegrafonen og den Traadløse, Ingeniørvidenskabelige Skrifter no. 2, Copenhagen (provides a very complete, although somewhat confusing, account of Poulsen's contributions; a list of his patents is given on pp. 285–93).F.K.Engel, 1990, Documents on the Invention of Magnetic Re cor ding in 1878, New York: Audio Engineering Society, reprint no. 2,914 (G2) (it is here that doubt is expressed about whether Poulsen's ideas were developed independently).GB-N -
17 FSVFT
см. Frequency Shift Voice Frequency TelegraphyEnglish-Russian dictionary of modern telecommunications > FSVFT
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18 communication(s)
связь; коммуникация; сообщение; общение; путь сообщения [подвоза]air-submerged submarine laser communications — лазерная связь линии «ЛА — ПЛ» в подводном положении
amplitude-modulated double sideband suppressed carrier communications — радиосвязь на двух боковых полосах частот с амплитудной модуляцией и подавлением несущей (частоты)
be in communications (with) — поддерживать [иметь] связь (с);
circuit allocated use communications — связь по выделенным линиям [каналам]
command (and control) communications — командная связь, связь управления
covert laser telephone communications — засекреченная [закрытая] лазерная телефонная связь
deep submergence communications by neutrino beams — связь с ПЛ в подводном положении при помощи пучков нейтрино
digital burst (memory load) communications — связь с импульсной [пакетной] передачей (накопленной цифровой информации)
distant ground communications via relay satellite — дальняя связь между наземными объектами через ретрансляционный спутник
distributed time division multipleaccess communications — связь с многостанционным доступом и распределенным временным уплотнением (каналов связи)
double-sideband, suppressed carrier communications — радиосвязь на двух боковых полосах частот с подавлением несущей (частоты)
frequency division multiple access communications — (радио) связь с многостанционным доступом и с частотным разделением (каналов связи)
high-frequency single band modulated communications — высокочастотная связь с однополосной модуляцией
high-traffic capacity optical spectrum radio-relay trunk communications — магистральная радиорелейная связь в оптическом диапазоне с большой пропускной способностью (каналов связи)
hydroacoustic communications by relay buoys — гидроакустическая связь с помощью ретрансляционных гидроакустических буев
millimeter wave secure communications — засекреченная [закрытая] (радио)связь в диапазоне миллиметровых волн
multiple channel point-to-point space radio communications — многоканальная магистральная [двухпунктовая] космическая радиосвязь
optical laser communications with submerged submarines by satellite-borne lasers — оптическая связь с ПЛ в подводном положении с помощью лазеров на ИСЗ
random access correlation radio communications — радиосвязь с произвольной выборкой информации и корреляцией
random access discrete address radio communications — радиосвязь с произвольной выборкой информации и дискретной адресацией абонентов
relative phase manipulation radiotelegraphy communications — телеграфная радиосвязь с применением метода относительной фазовой модуляции
relative phase modulation radiotelegraphy communications — телеграфная радиосвязь с применением метода относительной фазовой модуляции
satellite-to-submerged submarines laser communications — лазерная связь линии «спутник — ПЛ» в подводном положении
ship-to-under water swimmers communications — подводная связь линии «корабль — боевые пловцы»
shore-submerged submarine extralow frequency communications — связь на крайне низких частотах линии «берег — ПЛ в подводном положении»
short-burst security transmission communications — засекреченная радиосвязь короткими группами импульсов
short-range IR microprocessor wireless telephone communications — ближняя беспроводная ИК телефонная радиосвязь с использованием микропроцессоров
single channel ground and airborne radio communications — одноканальная радиосвязь линии «земля — ЛА»
very low frequency airborne relay communications with submerged submarines — сверхдлинноволновая связь [связь на очень низких частотах] с ПЛ в подводном положении с помощью воздушных радиорелейных пунктов
— cross-tell communications— meteorite burst communications— meteorite reflection communications— trunking communications— unsecured communications -
19 communication(s)
связь; коммуникация; сообщение; общение; путь сообщения [подвоза]air-submerged submarine laser communications — лазерная связь линии «ЛА — ПЛ» в подводном положении
amplitude-modulated double sideband suppressed carrier communications — радиосвязь на двух боковых полосах частот с амплитудной модуляцией и подавлением несущей (частоты)
be in communications (with) — поддерживать [иметь] связь (с);
circuit allocated use communications — связь по выделенным линиям [каналам]
command (and control) communications — командная связь, связь управления
covert laser telephone communications — засекреченная [закрытая] лазерная телефонная связь
deep submergence communications by neutrino beams — связь с ПЛ в подводном положении при помощи пучков нейтрино
digital burst (memory load) communications — связь с импульсной [пакетной] передачей (накопленной цифровой информации)
distant ground communications via relay satellite — дальняя связь между наземными объектами через ретрансляционный спутник
distributed time division multipleaccess communications — связь с многостанционным доступом и распределенным временным уплотнением (каналов связи)
double-sideband, suppressed carrier communications — радиосвязь на двух боковых полосах частот с подавлением несущей (частоты)
frequency division multiple access communications — (радио) связь с многостанционным доступом и с частотным разделением (каналов связи)
high-frequency single band modulated communications — высокочастотная связь с однополосной модуляцией
high-traffic capacity optical spectrum radio-relay trunk communications — магистральная радиорелейная связь в оптическом диапазоне с большой пропускной способностью (каналов связи)
hydroacoustic communications by relay buoys — гидроакустическая связь с помощью ретрансляционных гидроакустических буев
millimeter wave secure communications — засекреченная [закрытая] (радио)связь в диапазоне миллиметровых волн
multiple channel point-to-point space radio communications — многоканальная магистральная [двухпунктовая] космическая радиосвязь
optical laser communications with submerged submarines by satellite-borne lasers — оптическая связь с ПЛ в подводном положении с помощью лазеров на ИСЗ
random access correlation radio communications — радиосвязь с произвольной выборкой информации и корреляцией
random access discrete address radio communications — радиосвязь с произвольной выборкой информации и дискретной адресацией абонентов
relative phase manipulation radiotelegraphy communications — телеграфная радиосвязь с применением метода относительной фазовой модуляции
relative phase modulation radiotelegraphy communications — телеграфная радиосвязь с применением метода относительной фазовой модуляции
satellite-to-submerged submarines laser communications — лазерная связь линии «спутник — ПЛ» в подводном положении
ship-to-under water swimmers communications — подводная связь линии «корабль — боевые пловцы»
shore-submerged submarine extralow frequency communications — связь на крайне низких частотах линии «берег — ПЛ в подводном положении»
short-burst security transmission communications — засекреченная радиосвязь короткими группами импульсов
short-range IR microprocessor wireless telephone communications — ближняя беспроводная ИК телефонная радиосвязь с использованием микропроцессоров
single channel ground and airborne radio communications — одноканальная радиосвязь линии «земля — ЛА»
very low frequency airborne relay communications with submerged submarines — сверхдлинноволновая связь [связь на очень низких частотах] с ПЛ в подводном положении с помощью воздушных радиорелейных пунктов
— cross-tell communications— meteorite burst communications— meteorite reflection communications— trunking communications— unsecured communications
См. также в других словарях:
frequency-shift telegraphy — dažnio manipuliacijos telegrafija statusas T sritis radioelektronika atitikmenys: angl. frequency shift telegraphy vok. Frequenzumtasttelegrapfie, f rus. телеграфия с частотной манипуляцией, f pranc. télégraphie à déplacement de fréquence, f … Radioelektronikos terminų žodynas
Frequency shift — In the physical sciences and in telecommunication, the term frequency shift has the following meanings: * Any change in frequency * A Doppler shift * Any change in the frequency of a radio transmitter or oscillator. (Note: In the radio regime,… … Wikipedia
Multiple frequency-shift keying — Passband modulation v · d · e Analog modulation AM · … Wikipedia
Telegraphy — (from the Greek words (τηλε) = far and (γραφειν) = write) is the long distance transmission of written messages without physical transport of letters. Radiotelegraphy or wireless telegraphy transmits messages using radio. Telegraphy includes… … Wikipedia
Beat frequency oscillator — A beat frequency oscillator or BFO in radio telegraphy, is a dedicated oscillator used to create an audio frequency signal from carrier wave transmissions to make them audible, as they are not broadcast as such. The signal from the BFO is then… … Wikipedia
Frequenzumtasttelegrapfie — dažnio manipuliacijos telegrafija statusas T sritis radioelektronika atitikmenys: angl. frequency shift telegraphy vok. Frequenzumtasttelegrapfie, f rus. телеграфия с частотной манипуляцией, f pranc. télégraphie à déplacement de fréquence, f … Radioelektronikos terminų žodynas
dažnio manipuliacijos telegrafija — statusas T sritis radioelektronika atitikmenys: angl. frequency shift telegraphy vok. Frequenzumtasttelegrapfie, f rus. телеграфия с частотной манипуляцией, f pranc. télégraphie à déplacement de fréquence, f … Radioelektronikos terminų žodynas
télégraphie à déplacement de fréquence — dažnio manipuliacijos telegrafija statusas T sritis radioelektronika atitikmenys: angl. frequency shift telegraphy vok. Frequenzumtasttelegrapfie, f rus. телеграфия с частотной манипуляцией, f pranc. télégraphie à déplacement de fréquence, f … Radioelektronikos terminų žodynas
телеграфия с частотной манипуляцией — dažnio manipuliacijos telegrafija statusas T sritis radioelektronika atitikmenys: angl. frequency shift telegraphy vok. Frequenzumtasttelegrapfie, f rus. телеграфия с частотной манипуляцией, f pranc. télégraphie à déplacement de fréquence, f … Radioelektronikos terminų žodynas
Telecommunication — A parabolic satellite communication antenna at the biggest facility for satellite communication in Raisting, Bavaria, Germany … Wikipedia
Modulation — For musical change of key, see Modulation (music). For other uses, see Modulation (disambiguation). Passband modulation v · d · e … Wikipedia
