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Section 7: The Acquisition Cost of an HF DBS-A System-Service
Pages 54-56

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From page 54... ... It is somewhat more difficult to estimate the acquisition cost, and therefore the related financial cost of ownership and operation of an HF DBS-A system-service than it is for a UHF service at this time.54 The individual space segment cost would be somewhat greater because of the larger antenna required and the increased demand that its size would put upon transporting it to orbit and assembling it there. Greater RF power would be required to overcome the external electrical noise at 26-MHz -- particularly greater at the absolute DC power level to be associated with a high-capacity, high-quality system-service where the in-space cost of providing the service would be very great. Read the entire page →
From page 55... ... While the acquisition and ongoing cost of the space segments of an HF DBS-A system-service would be great in absolute terms, and greater relative to the cost of a comparable UHF DBS-A system-service, its cost would sti ~ ~ be only iO percent of the total global system-service cost because the bulk of the total cost would be concentrated in the surface segment.35 35. In considering employment of a frequency band other than 26-MHz or 2.5 GHz, several important observations can be made. Read the entire page →
From page 56... ... Two other regions should be given particular attention. The VHF region presently used for FM broadcasting, among other services, offers many of the advantages of the UHF region: the influence of the ionosphere is no longer very important, diffraction field radiowave attenuation rates are much more modest than at UHF, building wall and foliage radiowave attenuation concerns are modest, and relatively sensitive receivers are in wide use throughout the world in various frequency bands. Read the entire page →

From page 54...

... It is somewhat more difficult to estimate the acquisition cost, and therefore the related financial cost of ownership and operation of an HF DBS-A system-service than it is for a UHF service at this time.54 The individual space segment cost would be somewhat greater because of the larger antenna required and the increased demand that its size would put upon transporting it to orbit and assembling it there. Greater RF power would be required to overcome the external electrical noise at 26-MHz -- particularly greater at the absolute DC power level to be associated with a high-capacity, high-quality system-service where the in-space cost of providing the service would be very great.

Read the entire page →

From page 55...

... While the acquisition and ongoing cost of the space segments of an HF DBS-A system-service would be great in absolute terms, and greater relative to the cost of a comparable UHF DBS-A system-service, its cost would sti ~ ~ be only iO percent of the total global system-service cost because the bulk of the total cost would be concentrated in the surface segment.35 35. In considering employment of a frequency band other than 26-MHz or 2.5 GHz, several important observations can be made.

Read the entire page →

From page 56...

... Two other regions should be given particular attention. The VHF region presently used for FM broadcasting, among other services, offers many of the advantages of the UHF region: the influence of the ionosphere is no longer very important, diffraction field radiowave attenuation rates are much more modest than at UHF, building wall and foliage radiowave attenuation concerns are modest, and relatively sensitive receivers are in wide use throughout the world in various frequency bands.

Read the entire page →

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Section 7: The Acquisition Cost of an HF DBS-A System-Service Pages 54-56

Section 7: The Acquisition Cost of an HF DBS-A System-Service
Pages 54-56