| 摘要 |
FIELD: radio engineering, communication.SUBSTANCE: method includes series-connection of a telephone line to a first modem, a first automatic telephone exchange (ATE), a second ATE and a second modem, transmitting from the first to the second modem a test signal with known characteristics, controlling the value of direct current in the telephone line between the first modem and the first ATE, analysing at the side of the second modem the level of distortions of the received signal and outputting to the first modem information on the value of current, wherein the signal in the second modem has minimal distortions, transmitting information from the first to the second modem at said current value, and performing similar setup when transmitting information from the second modem to the first modem.EFFECT: high reliability and rate of transmitting information.2 dwg |
