See also:

XM™ Satellite Radio Service
XM satellite radio service gives digital radio reception from coast to coast in the 48 contiguous United States, and in Canada. Just as with FM, tall buildings or hills can interfere with sa ...

Tire Pressure Monitor System
The Tire Pressure Monitor System (TPMS) uses radio and sensor technology to check tire pressure levels. TPMS sensors are mounted on each tire and wheel assembly, except the spare tire. The TPMS ...

FM Stereo
FM stereo gives the best sound, but FM signals reach only about 10 to 40 miles (16 to 65 km). Tall buildings or hills can interfere with FM signals, causing the sound to fade in and out. ...