1 . In a
system or device, the ratio of (a) a specified maximum level of a parameter, such as
power, current, voltage, or
frequency to (b) the minimum detectable value of that parameter. Note: The dynamic range is usually expressed in
dB. 2. In a
transmission system, the ratio of (a) the
overload level, i.e. , the maximum
signal power that the system can tolerate without
distortion of the signal, to (b) the
noise level of the system. Note: The dynamic range of transmission systems is usually expressed in dB. (
188 ) 3. In
digital systems or devices, the ratio of maximum and minimum signal levels required to maintain a specified
bit error ratio.
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