Uniden MHS135DSC English Owner's Manual - Page 22

to the DSC Directory Edit screen. 8. To delete the directory entry, select Delete. 9. When you are satisfied with the directory list, press CLR/SCAN to close the menu screen. Making DSC Calls There are essentially four different types of DSC voice calls: Call type Distress What it does Alerts all stations that you need assistance and sends them your current position. When to use it In an emergency only. Individual Calls a single station using the User MMSL. When you want to talk to another station. Group Calls all the stations that have the same Group MMSL as yours. Any time you want with the whole group you are traveling with at the same time. All Ships Calls all stations within range of your radio. Safety warnings (e.g., debris in the water) or any urgent situation. Suppose you are coordinating safety for a sailboat race. Before the race starts, you instruct all the racers to enter your group MMSI number into their radios. During the race: xx Throughout the race, you use group calling to update the racers on the time, race status, and any course corrections. xx A power boat full of spectators comes too close to the race path. You use individual calling to contact the power boat and advise them to stay clear of the race. xx You see a rowboat entering the area, but since it doesn't have a radio, you can't communicate with the rowboat. You use all ships calling to alert all the other boats in the area of the possible danger. E-18 Uniden MHS135DSC Radio Owner's Manual