Sirius Changes Modulation Approach to Increase Programming Capacity

Sirius Changes Modulation Approach to Increase Programming Capacity
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When Sirius Satellite Radio unveiled its improvements to its planned video technology at CES in January, executives couldn't really say how the company would transport mobile video images without hurting its satellite radio channel integrity.
Now, Sirius is prepared to answer that question with its announcement that it has developed what it says is an advanced proprietary technology that will increase the company's total network capacity by approximately 25% initially within its existing digital transmission system.
Sirius says the so-called "hierarchical modulation" will allow the satcaster to offer more audio channels, as well as advanced services such as data and video, without affecting the quality of its broadcasts.
Sirius said the approach would allow it to increase the bits it transports through its satellite and repeater networks with "minimal" upgrades to its satellite uplink and terrestrial repeater infrastructure.
The company says the new modulation technology will not change the customer experience of existing Sirius radios sold or currently on the market. Future Sirius radios will be outfitted with the new technology, making it possible for them to receive the additional services planned.
Sirius is working with its IC partners to integrate the advanced modulation technology into its chipsets. The company expects to begin offering services using the new technology in the second half of 2006.
The company's New Jersey-based Advanced Development Team developed the concept. Sirius has conducted several tests of the technology to confirm the performance.

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