21.   Cable operators have only just begun, in small pockets, to transmit digital signals.

22.   Computer manufacturers, including Intel, are hoping to get a piece of the action as broadcasters begin transmitting digital signals beginning next fall.

23.   Consider the arcane but important issue of how PCS signals are transmitted.

24.   Digital cable transmits digitized signals through the wires, which take up less bandwidth and provide better picture quality.

25.   Each worker at the turnstiles will wear an earpiece, and when an unpaid ticket is scanned, a signal will be transmitted to summon security immediately.

26.   Electrodes are placed in auditory nerves to transmit signals detected by the implant.

27.   Exquisitely small, dendritic spines typically serve as the receiving end of the synapses, which are neuronal connecting sites where nerve cells transmit signals to each other.

28.   For years, boaters relied on a system called long-range navigation, or Loran, which uses on-shore beacons transmitting radio signals.

29.   Griffin said that interference was virtually impossible because Bluetooth transmits signals at a small fraction of the power of a cell phone.

30.   GPS works by having a satellite transmit signals that give its location and the time of the transmission.