Frequency channel occupancy measurements should have a certain level of accuracy. In some cases the possibility exists to reach this level of accuracy by using the technique of frequency band measurements if certain requirements are met. By using this method a more efficient use of existing equipment is possible.
ITU-R SM.1809 FRENCH-2007 history
2007ITU-R SM.1809 FRENCH-2007 Standard data exchange format for frequency band registrations and measurements at monitoring stations