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Direct Broadcast Satellite Communications: An MPEG Enabled Service by Donald C. Mead

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Chapter Ten DBS Uplink Facilities

The DBS uplink was introduced in Chapter 3. In this chapter, the components of the uplink facility are discussed in more detail.

The DBS uplink facilities are very complicated electronic systems. The broadcast facilities for a transponder are roughly equivalent to those of a television station. Since the typical uplink facility provides for 20 to 30 transponders, it has the complexity of more than 20 television stations. What’s more, the uplink must continuously provide for 200 television channels. Each of these must be compressed and time-division multiplexed (TDM) into bit-streams for transmission to the satellite transponders.

Another way to view the complexity of a DBS uplink facility is to examine the bit ...

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