Satellite TV provides a strong digital signal to subscribers' television sets and is almost completely wireless. Digital satellite systems also offer additional data about shows. Since satellite radio's business model is based on subscriptions, the bulk of the income comes from listeners, not advertisers. The Radio Chick (Leslie Gold) can currently be heard on Sirius Channel 103. Satellite radio is more than the lastest fad technology. Audio channels on XM Radio are digitally compressed using the aacPlus codec from Coding Technologies for most channels, and the AMBE codec from Digital Voice Systems for some voice channels. Most XM Radio music channels are unique and innovative XM Originals, which include totally new programming. On September 13, 2005, XM Radio announced a multi-year deal to carry National Hockey League broadcasts beginning with the 2005-06 season, initially sharing the coverage with Sirius but gaining satellite-radio exclusivity from 2007 onward. XM Satellite Radio provides digital programming directly from three satellites in geostationary orbit above the equator. XM Radio has strategic alliances with Corus Entertainment, Telesat Canada, General Motors, Honda and Toyota. At its launch in 2001, satellite radio was targeted only towards motorists. You'll fall in love with the entertainment variety you'll find on satellite radio. A portable satellite radio has a rechargeable battery and a built-in antenna, and can be listened to via headphones anywhere the satellite radio signal can be received. Portable satellite radios that also store and play back MP3 files will soon be available. XM Satellite Radio and Sirius Radio both have looked at DirecTV's success and thought about how to attract that type of market to its product. In the third-world, it is not uncommon for purchasers of digital satellite systems to act as gateway cable companies in areas where cable is not available.