61.   Its technology allows voice and data to be transmitted using radio signals instead of fiber optic or phone cables.

62.   Its software, embedded on a read-only-memory, or ROM, chip, switches its radio signal from one channel to another at frequent intervals.

63.   Most radio signals are transmitted on a single, relatively narrow, frequency.

64.   NATO jets crisscrossed the area where he had been shot down, vainly listening for his radio signal.

65.   Monday, hearing television reports that Scott had sent a radio signal, the family celebrated with a nice dinner and wine.

66.   Navy personnel expected to arrive Monday will use sonar to try picking up the radio signal emitted by the flight-data recorder.

67.   Most of them work on finding radio signals transmitted over the line, a signal that there is a wiretap at work.

68.   Night and day above this powder keg poured a radio signal broadcasting a whirling, hypnotic stream of Serb nationalist song.

69.   No reliable radio signal from an alien civilization has been detected.

70.   Now Panasonic is using that same type radio signal, for the same reasons, for cordless telephones.