FIELD: communications. SUBSTANCE: device has scrambling unit, transmission buffer memory unit, encoder, filter for high frequency of transmitted signal, transmitting amplifier, first, second, third and fourth switches, automatic gain control unit, variable corrector, correcting amplifier, filter for high frequency of received signal, decision making unit, decoder, buffer memory unit, unscrambling unit, driving oscillator, transmission frequency generation unit, receiving frequency generation unit, clock synchronization unit, packet synchronization unit, analysis unit, balance circuit, balancing transformer, low-pass filter. EFFECT: increased noise immunity, decreased transition interference between transmitting and receiving directions, decreased dispersion of phase error, increased precision of correction of errors between characters. 3 cl, 3 dwg
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