![]() ![]() When the gain value is below the mid-frequency range, it is expressed as a negative dB value. Maximum gain is called the mid-frequency range with a value of 0 dB. In such situation it means that reference gain is used as reference which is used to compare other values of gain.Īmplifiers show a maximum gain in mid-frequency range and reduced gain in the low-frequency range. In amplifiers under few circumstances, value of gain may be assigned with 0 dB reference.
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