EFFECT OF NOISE ON TRANSMISSION PERFORMANCE OF TELEPHONE CIRCUITS DUE TO THYRISTOR-CONTROLLED TRACTION

The question of how far the growing use of thyristor controlled railway traction affects telephone transmission quality due to induced noise voltages was investigated by performing a practical experiment. A demonstration was arranged whereby 30 persons had to assess the quality impairment by means of listening tests. The test conditions are described and as a general result it can be stated, that the CCITT limit for the permissible noise e.m.f. of 1 mv has to be retained unchanged.

  • Supplemental Notes:
    • This paper was presented at the IEEE's First Symposium and Technical Exhibition on Electromagnetic Compatibility held at Montreux, Switzerland, May 20-22, 1975.
  • Corporate Authors:

    Institute of Electrical and Electronics Engineers

    3 Park Avenue, 17th Floor
    New York, NY  USA  10016-5997
  • Authors:
    • Hannig, R
  • Conference:
  • Publication Date: 1975

Media Info

  • Pagination: p. 402-406

Subject/Index Terms

Filing Info

  • Accession Number: 00148304
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Report/Paper Numbers: Proceeding
  • Files: TRIS
  • Created Date: Feb 16 1977 12:00AM