See also:

How to use the back button
Press the BACK button to return to the previous screen. ...

AM radio reception
AM signals, because of their low frequency, can bend around objects and skip along the ground. In addition, the signals can be bounced off the ionosphere and bent back to earth. Because of thes ...

Backing up behind a projecting object
The position C is shown farther than the position B in the display. However, the position C is actually at the same distance as the position A . The vehicle may hit the object when backing up to ...