Icom IC-M804 Instruction Manual - Page 25

6 DSC OPERATION ■ About DSC Digital Selective Calling (DSC) is an automated digital communication system defined by ITU-R M.493, and NOTE: • To use a DSC call, entering the MMSI code is is also part of the Global Maritime Distress and Safety needed. See page 8 for details. System (GMDSS). The international VHF and MF/HF • To send your vessel's position and time data, marine transceivers installed in this system can transmit receiving them from the supplied GPS antenna, and receive Distress, Urgency, Safety, and Routine NMEA 0183 or NMEA 2000, or manually entering DSC calls to and from other vessels and coast stations. is needed. See page 63 for each connector If your vessel requires assistance, contact other vessels connection and page 22 for manual input details. and the Coast Guard by sending a Distress call, which includes your MMSI code, the position and time data, • The Mode setting of all DSC call is fixed to "Telephony." 5 and the nature of distress on an emergency frequency. • The order of priority for DSC calls is Distress, Urgency, Safety, and Routine. 6 ■ DSC address ID D Entering an Individual or Group ID You can enter a total of 75 Individual IDs and 25 Group IDs, and assign names of up to 10 characters. 4. Enter an Individual or Group ID, and then push Finish . Rotate (Example: Entering an Individual ID) 1. Open "Individual ID." [MENU] > DSC Settings > Individual ID • "No ID" is displayed if no ID is entered.  To entering a Group ID: [MENU] > DSC Settings > Group ID 2. Push Add . • The ID entry screen is displayed. + Push NOTE: • For a Group ID, the first digit is fixed as "0." • For any coast station ID, the first two digits are fixed as "00." 5. Select "Call Frequency." Rotate 3. Select "Address." Rotate + Push + Push 6. Enter a receive frequency, and then push Finish . Rotate + Push 7. Enter a transmit frequency, and then push Finish . Rotate + Push 20 ► Continued on the next page.