JRC JHS-770S - Page 19

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4.2.10 Squelch settings of each channel (preset squelch) ............................................. 4-13
4.3 Basic DSC operations .................................................................................................. 4-14
4.3.1 Routine calls to a coast station ............................................................................ 4-14
4.3.2 Routine calls to a ship station .............................................................................. 4-16
4.3.3 Receiving a routine call ........................................................................................ 4-17
4.3.4 Communicating with a PSTN subscriber ............................................................. 4-20
4.3.5 AIS-linked DSC calls ............................................................................................ 4-23
4.4 Emergency calls (DSC Safety/ Urgency/ Distress Calls) ............................................. 4-25
4.4.1 Safety calls ........................................................................................................... 4-25
4.4.1.1 All ships calls .................................................................................................... 4-25
4.4.1.2 Individual calls (All modes RT) ........................................................................... 4-26
4.4.1.3 Other features of the safety call (Position request/ Test) .................................. 4-28
4.4.1.4 Receiving a safety call ...................................................................................... 4-30
4.4.2 Urgency calls ........................................................................................................ 4-32
4.4.2.1 All ships calls .................................................................................................... 4-32
4.4.2.2 Individual calls .................................................................................................. 4-33
4.4.2.3 Special calls (Medical transport/ Neutral ship) .................................................. 4-35
4.4.2.4 Receiving an urgency call ................................................................................. 4-36
4.4.3 Distress calls ........................................................................................................ 4-38
4.4.3.1 Quick distress calls ........................................................................................... 4-38
4.4.3.2 Distress calls from the menu ............................................................................ 4-40
4.4.3.3 Receiving a distress call ................................................................................... 4-42
4.4.3.4 Acknowledgement to a received distress call ................................................... 4-43
4.4.4 Distress relay calls on behalf of someone else (Proxy distress calls) ................. 4-44
4.4.4.1 All ships calls .................................................................................................... 4-44
4.4.4.2 Coast station calls ............................................................................................. 4-46
4.4.4.3 Receiving a proxy distress call ......................................................................... 4-49
4.4.5 Distress relay calls ............................................................................................... 4-50
4.4.5.1 Sending a distress relay call ............................................................................. 4-50
4.4.5.2 Receiving a distress relay call .......................................................................... 4-52
4.5 Simple DSC test call .................................................................................................... 4-54
4.6 DSC call log ................................................................................................................. 4-55
4.6.1 Received distress messages ............................................................................... 4-55
4.6.2 Received other messages ................................................................................... 4-56
4.6.3 Transmitted messages ......................................................................................... 4-57
4.7 Other features .............................................................................................................. 4-58
4.7.1 Notification of registered ships by the AIS ........................................................... 4-58
4.7.2 Playback of received voice .................................................................................. 4-59
4.7.3 Public Address function with an external speaker (option) .................................. 4-62
4.7.4 Intercom ............................................................................................................... 4-63
4.8 Popup screens ............................................................................................................. 4-65