ITU-R QUESTION 245/7-2006 Interference to the standard frequency and time signal service in the low-frequency band caused by noise from electrical sources
The ITU Radiocommunication Assembly considering a)that the number of standard frequency and time signal (SFTS) service systems in the low-frequency (LF) band (20-90 kHz), and the number of radio-controlled clocks that receive this service, are increasing;b)that the number of sources of electrical interference is also increasing, and such interference has been reported to affect severely the receiver environment of low-frequency SFTS;c)that the level of electro-magnetic interference to the LF band from all sources has not yet been clearly determined and criteria for interference from electrical sources are necessary to maintain the usefulness of the SFTS service.
ITU-R QUESTION 245/7-2006 history
2006ITU-R QUESTION 245/7-2006 Interference to the standard frequency and time signal service in the low-frequency band caused by noise from electrical sources