1.   But some digital signals transmit at higher frequencies than analog signals and are more susceptible to energy loss as they travel between points.

2.   In addition to a great picture, the digital signal can transmit data, which means future televisions will act more like computers.

3.   No high buildings or mountains obscure the radio signals transmitted over the Internet.

4.   The key, he said, was to use radio signals to transmit both information and entertainment.

5.   When it is inserted into a special receptacle, an infrared signal transmits a code and the steering wheel remains locked until the proper numerical match is made.