See also:

How HD broadcasting works
HD Radio works similarly to conventional radio and broadcasts of this type are available in many areas of the United States. However, there are a few key differences: Instead of transmitting one ...

Channel lock
Access to specific channels can be restricted (locked). A locked channel will not provide audio, song titles, or artist information. NOTE All channels are initially unlocked. Locking a chann ...

Safety
Volvos are renowned for their safety. This commitment is as old as the company itself. As Assar Gabrielsson, one of the founders of Volvo, declared: 'Cars are driven by people. The guiding principle ...