The Furuno FS2570 SSB MF/HF Radio is a new MF/HF radiotelephone for general communications and GMDSS applications. Provided in addition to radiotelephony operation are DSC (Digital Selective Call) on general communications and DSC Watch Receiver on all distress and safety frequencies in MF and HF bands. The Furuno FS2570 SSB MF/HF Radio maintains a continuous watch on a distress call even while you are exchanging normal voice messages. DSC channels can be individually set or all selected channels can be automatically scanned. When a DSC message is received, the radiotelephone gives audible and visual alarms.