NEW YORK -- They have to worry whether the softening economy will hurt new car sales — the largest generator of new satellite radio subscribers ... to let Sirius take control of XM's licenses ...

and Sirius system control centers monitor the satellite parameters. Figure 3. Sirius and XM use their S-band frequency allocations in very different ways. (Click the image for a larger view.) Radio ...

Satellite radio ... even a little remote control in the box. While it doesn’t control the volume or the AM or FM sections -- it does allow you to control all the Sirius radio functions (music ...