An ANALYSIS OF EFFICIENCY ANALOG radio lines IS ON TECHNOLOGY OF THE USE FOR TRANSMISSION OF DIGITAL STREAM OF THE COMBINED MODULATION

V.M. Ilushko, V.J. Kazimirenko, T.M. Naritnik

Increase of volume of transferrable on main directions digital information, high cost developments of opening out of digital information on the base of modern digital technologies - SDH, PDH, lines of fol did actual the use for the transmission of digital streams the unfolded analog lines. In the article an analysis over of efficiency of line is brought using modulation of stream of symbols 64QAM and using an apparatus, masts, aerials of the stations and lines, unfolded before for an information transfer in an analog format.

Key words: radio line,station, frequency modulation, 64QAM, bit error, length of flight, DVB-C, DVB-Т.