ITU-R REPORT RS.2185 PDF

Executive summary

This Report outlines the results of studies into the work seeking to define sharing criteria to manage compatibility between transmitting stations of the radionavigation services and passive arrival time difference (ATD) receivers operating in the meteorological service in the frequency band below 20 kHz.

It discusses various issues and aspects of VLF propagation and concludes on the sharing and regulatory management aspects of ATD sensors and radionavigation services within the frequency band under discussion.

The findings, reflecting the real life sharing environment for many years, are that sharing between both services is a high possibility and practicality. Notwithstanding the technical aspects discussed herein, this is partially due to the nature of deployment characteristics of both services, and interference mitigation implemented by the arrival time difference system of the meteorological aids service.