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EQUIPEMENT ACCES MULTIPLE AFFECTATION DEMANDE PORTEUSES MONOVOIES MODULATION IMPULSIONS CODAGE [1 record]
Record 1 - internal organization data 1984-09-04
Record 1, English
Record 1, Subject field(s)
- Titles of Documents and Works
Record 1, Main entry term, English
- Single-Channel per Carrier, PCM Multiple-Access, Demand-Assignment Equipment 1, record 1, English, Single%2DChannel%20per%20Carrier%2C%20PCM%20Multiple%2DAccess%2C%20Demand%2DAssignment%20Equipment
Record 1, Abbreviations, English
Record 1, Synonyms, English
Record 1, Textual support, English
Record number: 1, Textual support number: 1 OBS
The best known operational demand-assignment multiple-access (DAMA) system is called SPADE (Single-channel per carrier PCM Multiple-Access Demand-Assignment Equipment). ... SPADE increased the traffic handling capabilities of INTELSAT satellites and made the establishment of new small capacity links more economical. ... In the SPADE system a specific satellite radio-frequency band is divided on the basis of assigning a single data or PCM converted voice channel per RF carrier. ... Neither end of a channel is permanently connected with any given terminal, and the channels are paired to form two-way circuits within the demand-assignment pool. 1, record 1, English, - Single%2DChannel%20per%20Carrier%2C%20PCM%20Multiple%2DAccess%2C%20Demand%2DAssignment%20Equipment
Record 1, Key term(s)
- SPADE system
Record 1, French
Record 1, Domaine(s)
- Titres de documents et d'œuvres
Record 1, Main entry term, French
- Équipement d'accès multiple avec affectation à la demande, par porteuses monovoies et modulation par impulsions et codage 1, record 1, French, %C3%89quipement%20d%27acc%C3%A8s%20multiple%20avec%20affectation%20%C3%A0%20la%20demande%2C%20par%20porteuses%20monovoies%20et%20modulation%20par%20impulsions%20et%20codage
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record number: 1, Textual support number: 1 OBS
Le système SPADE. Introduit par INTELSAT dans un réseau vers 1971, c'est le premier système à porteuses monovoies utilisant un répéteur de 36MHz de couverture globale d'un satellite d'INTELSAT (tels ceux de satellites INTELSAT IV, IV-A et V). La bande du répéteur est divisée en 800 canaux de 45 kHz chacun constituant une réserve commune de fréquences utilisables à la demande par n'importe quelle station du réseau. La parole est transmise sous forme de signaux numériques avec modulation par impulsions et codage. 1, record 1, French, - %C3%89quipement%20d%27acc%C3%A8s%20multiple%20avec%20affectation%20%C3%A0%20la%20demande%2C%20par%20porteuses%20monovoies%20et%20modulation%20par%20impulsions%20et%20codage
Record number: 1, Textual support number: 2 OBS
SPADE est une abréviation pour Single Channel per Carrier, PCM multiple Access, Demand Assignment Equipment: Équipement d'accès multiple avec affectation à la demande, par porteuses monovoies et modulation par impulsions et codage. 1, record 1, French, - %C3%89quipement%20d%27acc%C3%A8s%20multiple%20avec%20affectation%20%C3%A0%20la%20demande%2C%20par%20porteuses%20monovoies%20et%20modulation%20par%20impulsions%20et%20codage
Record 1, Key term(s)
- système SPADE
Record 1, Spanish
Record 1, Textual support, Spanish
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