Meaning of BANDWIDTH in English
The difference between the limiting frequencies of a continuous frequency band expressed in hertz (cycles per second). The term bandwidth is also loosely used to refer to the rate at which data can be transmitted over a given communications circuit. In the latter usage, bandwidth is usually expressed in either kilobits per second or megabits per second.
DOD English dictionary of military terms. Английский словарь военных терминов DOD. 2012