Estimation of usefulness of Digital Selective Calling (DSC) system in GMDSS

In the paper results of the research on exploitation of the Digital Selective Calling (DSC) system are presented, carried out in real sea conditions during exploitation ships equipped with GMDSS devices. From the acquired data it results that the DSC system has been worldwide accepted although with some reticence and difficulties, and fulfils the presupposed functions in spite of the complicated operational procedures.