The RO4700 proposes function ASN out of standard (Numerical Selective Calling) with the general public. A simple pressure on the key "Distress" immediately diffuses the distress call, the identity of your boat, the position and the nature of the danger. The acknowledgments of delivery coming from the neighbouring ships or the ground are posted on backlighted bill-poster LCD.
Equipped with 55 channels INT, the RO4700 allows to communicate in all confidentiality and to send selective callings towards one or more ships. It is enough to know the number of MMSI of the ship to be contacted and to address a message to him which specifies the channel of traffic on which you want to find yourselves. Only the boat concerned will answer your call. Moreover the new RO4700 has channels ATIS.