With the increasing use of unit trains, and longer freight trains, the use of remotely-controlled helper, or slave locomotives, placed toward the rear of these long trains has become quite commonplace. Controls from the lead unit, and indication or status responses from the slave unit are sent between units using VHF radio. Continuity of radio service is essential for satisfactory slave locomotive operation. Several railroads have made radio propagation tests to determine the extent of radio coverage along lines where such slave locomotive operations take place. These tests and the results are described in this article.

  • Corporate Authors:

    Simmons-Boardman Publishing Corporation

    P.O. Box 350
    Bristol, CT  United States  06010
  • Publication Date: 1971-8

Media Info

  • Features: Figures; Tables;
  • Pagination: p. 8-15
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00041034
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Mar 9 1976 12:00AM