NAVICOM RT-450 DSC Class D Marine VHF with Microphone / Mount - WaterproofNAVICOM RT 450 DSC Marine VHF with Microphone Mount Waterproof Works perfectly, fully tested with guarantee. NOTE: Cable is not in perfect condition but it works as it should. Navicom RT 450 DSC fix mount VHF radio is designed for ship to ship or ship to shore calls & has an integrated Class D DSC with message register. By simply pressing the distress key, the DSC system allows a distress call to be transmitted that will be recognised by all DSC VHF