电子海图题库(第三次修订版).(DOC)

故障代码类: 1. 031:sensor adapter 2 COM timeout 2. 257:Gyro 3 com error 3. 380:AIS COM ERROR 4. 450:headi

故障代码类: 1. 031:sensor adapter 2COM timeout 2. 257:Gyro 3com error 3. 380:AIS COM ERROR 4. 450:heading sensor not available 5. 470:datum change 6. 495:anchor watch error 7. 635:no official data 8. 640:chartalign:over 30 min 9.820:navtex message received 考点(题中穿插): 1.DISP SETTING(chart watch sector) 2.Basic setting:shallow pattern Chart disp:AIO Symbol disp:magnetic variation Chart alert:shallow contour,safety depth,safety contour, deep contour