Definition: In digital communication, a "spaceband" refers to a specific frequency band within which a radio signal can be transmitted and received without being attenuated or interfered by other signals. This is often used in radar systems for transmitting and receiving data over long distances at relatively low power levels. For example, the spaceband of a satellite may cover frequencies from 30 GHz to 10 GHz, while the spaceband of an aircraft's radio frequency can range from 150 MHz to
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