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Sharing the 620-790 MHz band allocated to terrestrial television with an audio-bandwidth social service satellite systemA study was carried out to identify the optimum uplink and downlink frequencies for audio-bandwidth channels for use by a satellite system distributing social services. The study considered functional-user-need models for five types of social services and identified a general baseline system that is appropriate for most of them. Technical aspects and costs of this system and of the frequency bands that it might use were reviewed, leading to the identification of the 620-790 MHz band as a perferred candidate for both uplink and downlink transmissions for nonmobile applications. The study also led to some ideas as to how to configure the satellite system.
Document ID
19780004318
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Smith, E. K. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Reinhart, E. E. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Date Acquired
September 3, 2013
Publication Date
October 31, 1977
Subject Category
Communications And Radar
Report/Patent Number
JPL-PUB-77-71
NASA-CR-155268
Accession Number
78N12261
Funding Number(s)
CONTRACT_GRANT: NAS7-100
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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