Accession Number:

ADA473220

Title:

HF Interference, Procedures and Tools (Interferences HF, procedures et outils)

Descriptive Note:

Final rept.

Corporate Author:

NATO RESEARCH AND TECHNOLOGY ORGANIZATION NEUILLY-SUR-SEINE (FRANCE)

Personal Author(s):

Report Date:

2007-06-01

Pagination or Media Count:

176.0

Abstract:

This Report presents the results of the work carried out by IST-050RTG-022 the Research Task Group RTG on HF Interference Procedures and Tools to address the concerns raised by the potential for unintentional radio interference to be caused by the widespread operation of broadband wire-line telecommunications systems, such as PowerLine TeleCommunications PLT, PLC and various forms of Digital Subscriber Line xDSL. Increase of the existing HF noise floor by widespread use of PLT andor xDSL will bring up problems for Military Radio Users as well as for HF Communication Intelligence COMINT in all NATO countries The signal-to-noise ratio thus may be reduced for tactical and strategic HF radio as well as for fixed sensitive COMINT sites. Each Chapter of the Report addresses specific topics, namely, introduction, HF radio, characteristics of PLT and xDSL systems, emission limits, measurement methods, propagation models, FMC modelling, and FMC analysis, culminating in conclusions and recommendations The Report also provides a comprehensive list of references and a software tool electronically available Briefly, the findings of the RTG do indicate that the PLT emissions have the potential to cause appreciable degradation in the exploitation of the HF spectrum by military users

Subject Categories:

  • Radiofrequency Wave Propagation
  • Radio Communications

Distribution Statement:

APPROVED FOR PUBLIC RELEASE