Radio licensing is a legal requirement for operating communication systems on board vessels. It ensures that the radio frequencies are used correctly and do not interfere with other communication networks. Service includes ensuring that the vessel holds all necessary licenses for its communication systems, including VHF, HF, and satellite radios. Compliance checks ensure that the communication systems meet SOLAS requirements and are authorized to operate in international waters. Proper licensing prevents fines and ensures that the vessel is equipped for effective emergency communication.