PTC Radio Desense Mitigation Research, Phase 2: Filter Identification and Testing

The Federal Railroad Administration (FRA) sponsored a project, conducted by the Transportation Technology Center, Inc. (TTCI), to identify and evaluate 220 MHz radio filter technologies that are capable of meeting requirements developed for mitigation of 220 MHz Positive Train Control (PTC) radio desense for locomotives operating on and around the Northeast Corridor (NEC). In collaboration with members of the NEC Communications Team, TTCI developed a set of requirements for the 220 MHz locomotive filters. TTCI executed laboratory baseline tests in house as well as laboratory environmental tests at a facility located in Longmont, CO, and installed a subset of the filter samples on a TTCI locomotive for a period of exposure to operations representative of revenue service. Based on the test results, some railroads are moving forward with purchasing and installing filter technologies like those tested. Special consideration and care was suggested for filter installation location and installation methods, as both can affect filter performance.


  • English

Media Info

  • Media Type: Digital/other
  • Edition: Technical Report
  • Features: Appendices; Figures; Photos; References; Tables;
  • Pagination: 59p

Subject/Index Terms

Filing Info

  • Accession Number: 01665580
  • Record Type: Publication
  • Report/Paper Numbers: DOT/FRA/ORD-18/01
  • Contract Numbers: DTFR53-11-D-00008, TO 0015
  • Created Date: Mar 28 2018 1:04PM