Meaning of PREEMPHASIS NETWORK in English

A network inserted in a system in order to increase the magnitude of one range of frequencies with respect to another. ( 188 ) Note: Preemphasis is usually employed in FM or phase modulation transmitters to equalize the modulating signal drive power in terms of deviation ratio . The receiver demodulation process includes a reciprocal network, called a deemphasis network, to restore the original signal power distribution.

Telecommunication standard terms English vocab.      Английский словарь стандартных телекоммуникационных терминов.