1 a wasting away of the body, as from poor nutrition, nerve damage, or disuse. 2  to undergo atrophy; wither; degenerate:His crippled leg began to atrophy with no exercise. 3  to become weakened; decline:Industry atrophied in bad economic times.
Voice Amplifiers / Long Range Listening Devices. Listening devices can be utilized for a variety of purposes including listening through a wall, listening from a distance or enjoying your favorite animals in the wild. More complex systems contain an audio transmitter and receiver.
What is a QAM Tuner? A QAM tuner (Quadrature Amplitude Modulation tuner) is a device that allows television sets to receive digital channels. QAM tuners are included in most modern television sets, although there are many that have not yet been upgraded to process digital channels.