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Фрагмент инструкции
4-6 DSC Functionality (DSC FUNC) DSC functionality can be disabled but this is not recommended. DSC SETUPDSC FUNC GROUP SETUP > ON INDIV REPLY OFF > DSC FUNC 1. Select DSC SETUP, then DSC FUNC. 2. The cursor is at ON. Press ENT or push the rotary knob to enable the DSC functionality and automatically disable ATIS functionality. The DSC annunciator appears on the screen. It’s not possible to have both ATIS ON and DSC ON simultaneously. When you enable one, the other will turn OFF. If DSC and ATIS are both OFF, you must turn DSC ON for normal DSC operation. The annunciator on the LCD shows you the current mode: if the DSC annunciator is shown, DSC is operational; if the ATIS annunciator is shown, ATIS is operational. 4-7 Response Type to LL Polling Calls (LL REPLY) You can set up the radio to respond to an LL polling request in one of three ways: AUTO automatically replies to an incoming LL polling request from any of your buddies. MANUAL reply manually or ignore to each incoming LL polling request from your buddies. OFF ignores all incoming LL polling requests. from your buddies. 1. Select DSC SETUP, then LL REPLY. 2. Select your mode of response and press ENT or push the rotary knob to confirm. DSC SETUP INDIV REPLY DSC FUNC > LL REPLY LL REPLY > MANUAL AUTO OFF Northstar Explorer VHF Series: 721US, 721EU Operation and Installation Manual Section 5 - Send and Receive DSC Calls A valid user MMSID must have been entered to access the DSC functions. If you don’t have a user MMSID, see Appendix D. Press CALL/MENU to show the DSC CALL menu. This shows the different types of DSC call that you make. Sections 1.3 and 1.4 explain how to navigate around the menu and enter, save and change data. 5-1 What is DSC? DSC (Digital Selective Calling) is a semi-automated method of establishing VHF, MF, and HF radio calls. It has been designated as an international standard by the IMO (International Maritime Organization) and is part of the GMDSS (Global Maritime Distress and Safety System). Currently, you are required to monitor Distress Channel 16, but DSC will eventually replace listening watches on distress frequencies and will be used to broadcast routine and urgent maritime safety information. DSC enables you to send and receive calls from any vessel or coast station that is equipped with DSC functionality, and within geographic range. Calls can be categorised as distress, urgency, safety, or routine, and DSC selects a working channel automatically. 5-2 The DSC CALL Menu Options Make a routine, safety, urgency or distress call to a INDIVIDUAL LAST CALL GROUP ALL SHIPS CALL LOG DIST LOG LL REQUEST ROUTINE SAFETY URGENCY DISTRESS buddy or another individual. See Section 5-3. Show the details of the most recent incoming call. See Section 5-4. Make a call to one of your three groups. See Section 5-5. Show the details of the 20 most recent incoming calls. See Section 5-7. Show the details of the 10 most recent distress calls. See Section 5-8. Request the LL position of a buddy. See Section 5-9. Make a urgency, safety, routine, or distress call to All Ships, See Section 5-6. URGENCY SAFETY ROUTINE DISTRESS Northstar Explorer VHF Series: 721US, 721EU Operation and Installation Manual 5-3 Call an Individual (INDIVIDUAL) INDIVIDUAL ROUTINEMANUAL MMSID 012345678 > ROUTINE > MANUAL NEW0–––––––– INDIVIDUAL SAFETY BUDDY1ROUTINE URGENCY BUDDY2 > SET CHANNEL 012345678 12345678 012345678 INDIV ACK INDIVIDUAL INDIVIDUAL INDIVIDUAL 012345678 ROUTINEROUTINE ROUTINE PRESS PTT > SEND? CALLING... WAITING ACK ESC –> EXIT You can call anyone who has a radio with DSC functionality. You can set the priority level of the DSC call to routine, safety, urgency, or distress. Choose: • ROUTINE to make a routine call • SAFETY to send safety information • URGENCY only when there’s a serious situation or problem that could lead to a distress situation • DISTRESS only when there’s a distress situation. 1. Press CALL/MENU to enter the DSC CALL menu, then select INDIVIDUAL to call another person. 2. The cursor is at ROUTINE. Press ENT or press the rotary knob to make a routine call or select to another priority level. 3. The cursor is at MANUAL NEW. Press ENT or press the rotary knob to call a person who’s not in your buddy list; otherwise select the name of your buddy. If you selected MANUAL NEW, enter the user MMSID and then press ENT or push the rotary knob. 4. Select the working channel and press ENT or press the rotary knob. (NOTE: If you’re making a distress call, the radio goes to CH16 automatically.) Duplex channels can’t usually be called and are automatically eliminated from the suggested call list. If the call is to a Coast Station, the radio will recognize this and select the correct channel. 5. The radio summarizes the call details and asks for confirmation to send the call (SEND?). Press ENT or push the rotary knob to send the call. The TX annunciator is displayed on the screen while the DSC call is being sent. 6. If the call is acknowledged (A...
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