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【正文】 識 ?三、升、降旗的正確操作方法 ? 船舶進出港時應懸掛的旗號 ? （ 1）不同的港口國或不同的抵達港對船舶應懸掛的信號旗有不同的要求。 ? （ 2）需要引水時，先掛出“ G”旗（我船需要引水員）。當引水離船后應立即降下“ H”旗。待檢疫結(jié)束，領到進口檢疫證后，可降下“ Q”旗。 ? （ 5）船舶在預計開航前 12h，應在明顯位置懸掛“ P”旗。 通信要素的表示方法 ? Transmission Method of Communication Elements in Signal Code Message ? Name of Vessels and /or Places ? Spelled the name of vessels and places directly. ? . ? RV Shanghai = You should proceed to Shanghai. ? HY1 Merry Trans = The vessel Merry trans with I have been in collision has resumed her voyage. 通信要素的表示方法 ? How to signal numbers ? (a) Numbers are to be signaled as follows: ? Flag signaling: by the numeral pennants of the Code. ? Flashing light or sound signaling: usually by the numerals in the Morse Code。. ? LT A120 T1540 =Your bearing from me is 120176。. ? GR C240 S18 =Vessel ing to your rescue is steering course 240176。 however, for reasons of simplicity they may be omitted if there is no risk of confusion. ? Example: ? ―L3740S‖ = ―Latitude 37176。S‖. 通信要素的表示方法 ? Longitude ? Longitude is expressed by four or, if necessary, five figures preceded by the letter ―G‖. The first two (or three) figures denote the degrees and the last two the minutes. When the longitude is more than 99176。2539。 from me, distance 10 miles‖. ?The letter ―R‖ may be omitted if there is no possibility of confusion. 通信要素的表示方法 ? Speed ? Speed is indicated by figures preceded by: ? (a) the letter ―S‖ to denote speed in knots, or ? (b) the letter ―V‖ to denote speed in kilometers per hour. ? Examples: ? ―BQ S300‖ = ―The speed of my aircraft in relation to the surface of the earth is 300 knots‖. 通信要素的表示方法 ? Time ? Times are to be expressed in four figures, of which the first two denote the hour, from 00 (midnight) up to 23 (11 .), and the last two denote the minutes (from 00 to 59). The figures are preceded by: ? (a) the letter ―T‖ indicating ―Local time‖, or ? (b) the letter ―Z‖ indicating ―Greenwich Mean Time‖. ? Example: ? ―RX Z0830‖ = ―You should proceed at GMT 0830‖. 通信要素的表示方法 ? Depth ? Wherever the text allows depths, etc., to be signaled in feet or in meters, the figures should be followed by ―F‖ to indicate feet or by ―M‖ to indicate meters. ? : ? OC 6M = My draft forward is 12 meters ? MU 18F = My draft is 18 feet. 通信要素的表示方法 ? Transmission Method of Communication Elements in Signal Code Message ? A+3 numerals — Azimuth or Bearing。 ? D+2(or+4or+6)numerals — Date。 ? S+1 or several numerals — Speed in knots。 ? R+1 or several numerals — Distance in n mile。 ? 主要作用：在船舶海上聯(lián)絡、碼頭靠泊、信息報告的時候使用。 CALL SIGN ? 船舶呼號的組成 ? 船舶呼號是船舶所有國政府指定給該船的一組字母和數(shù)字，常有四個或四個以上的英文字母或字母與數(shù)字混合組成。如： ? 中國 ——BAA~BIZ， 3HA~3UZ； ? 英國 ——GAA~GZZ， 2AA~2ZZ； ? 日本 ——JAA~JSZ， 8JA~8NZ。 ?（ 1）與某船臺通話或呼叫某船臺； ?（ 2）通信中講到或指到某船
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