RES656 – 376 – resolves to invite the 2023 World Radiocommunication Conference to consider the results of studies on spectrum needs for a possible new allocation to the Earth exploration-satellite (active) service for spaceborne radar sounders within the range of frequencies around 45 MHz, taking into account the protection of incumbent services, and take appropriate action, invites ITU-R 1 to conduct studies on spectrum needs and sharing studies between the Earth exploration-satellite (active) service and the radiolocation, fixed, mobile, broadcasting and space research services in the 40-50 MHz frequency range; 2 to complete the studies, taking into account the present use of the allocated band, with a view to presenting, at the appropriate time, the technical basis for the work of WRC-23, invites administrations to participate actively in the studies by submitting contributions to the ITU Radiocommunication Sector, instructs the Secretary-General to bring this Resolution to the attention of international and regional organizations concerned.