[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fqVmE2VkBj-fZI0qXFWPZKWorJTELfQHyX_VA4r1PJK8":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":30,"type":31},[],"2025-10-27 07:54:46",224801664,[8,9,10,11],"ITU Publications",", The manufacturer's instruction manuals","list of international radio beacon call signs",",The GMDSS Maintainer's requirements",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},130,"53e1d2ef4961cca8eea3e23969ad2cb9","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F03a579384a6dc297c89809b582fcc767.png","默认课程","work_47360328","第四章作业","39, What determines the spares and maintenance materials requirements for the NBDP equipment under GMDSS",[21,32,41,50,59,68,77,86,89,98],{"answer":22,"createTime":5,"id":23,"options":24,"question":29,"source":30,"type":31},[],224801657,[25,26,27,28],"A two-tone alarm code is received","A series of four-second dashes are received","A 200-bit 100-baud dot pattern is received",", A steady audio alarm is received, allowing the operator to select the desired frequencyfor the reception of the message","4, What signal is used to allow a scanning receiver to stop and detect an MF or HF DSC distress message","v1",0,{"answer":33,"createTime":5,"id":34,"options":35,"question":40,"source":30,"type":31},[],224801658,[36,37,38,39],"ALRS (Admiralty List of Radio Signals)Volume 1,Part 1","ALRS (Admiralty List of Radio Signals)Volume l, Part 2","ALRS(Admiralty List of Radio Signals)Volume 3,Part 1","ALRS (Admiralty List of Radio Signals)Volume 3, Part 2","Which material should be consulted when you want to find the working frequencies ofShanghai Radio",{"answer":42,"createTime":5,"id":43,"options":44,"question":49,"source":30,"type":31},[],224801659,[45,46,47,48],"Four "N"s,i.e."NNNN"",""BRK+"","Four "K"s, i. e."KKKK"",", Five periods(".....")","Which of the following keystrokes or characters is sent as part of ARQ communicationsto signal the end of the text of a chargeable message",{"answer":51,"createTime":5,"id":52,"options":53,"question":58,"source":30,"type":31},[],224801660,[54,55,56,57],"frequency assignments specific to Chinese vessels only","international designation of specific frequencies","VHF frequencies",",International Traffie Utility frequencies","ITU channels are",{"answer":60,"createTime":5,"id":61,"options":62,"question":67,"source":30,"type":31},[],224801661,[63,64,65,66],"when two stations communicate with each other",", in any radio system at any time","when one ship sends messages to another",",for communication among some stations","126, The ARQ mode should be applied",{"answer":69,"createTime":5,"id":70,"options":71,"question":76,"source":30,"type":31},[],224801662,[72,73,74,75],", Make a voice announcement to cancel the alert on 2,187. 5 kHz",", Make a voice announcement to cancel the alert on 2,174.5 kHz","Make a voice announcement to cancel the alert on 2,182.0 kHz",", Send another DSC alert and follow on with voice on 2,182.0 kHz","127, What action should be taken once you've sent a false distress alert on MF-DSC",{"answer":78,"createTime":5,"id":79,"options":80,"question":85,"source":30,"type":31},[],224801663,[81,82,83,84],"ALRS(Admiralty List of Radio Signals)Volume l,Part 1","ALRS (Admiralty List of Radio Signals)Volume l,Part 2","ALRS (Admiralty List of Radio Signals)Volume 3,Part 1","ALRS (Admiralty List of Radio Signals)Volume 3,Part 2","Which of followings should be consulted for the MMSI of Shanghai Radio",{"answer":87,"createTime":5,"id":6,"options":88,"question":19,"source":30,"type":31},[],[8,9,10,11],{"answer":90,"createTime":5,"id":91,"options":92,"question":97,"source":30,"type":31},[],224801665,[93,94,95,96],"156.300 MHz","156.525 MHz","156.650 MHz","156.800 MHz","Which frequency is designated for VHF Digital Selective Calling",{"answer":99,"createTime":5,"id":100,"options":101,"question":106,"source":30,"type":31},[],224801666,[102,103,104,105],"effect","east","erase","error","In abbreviation FEC, the letter E means"]