| 摘要 |
PURPOSE:To display different types of nautical data in association with each other and facilitate observation, by a method wherein a track tracer and another nautical data are simultaneously displayed in the divided areas on a display screen respectively. CONSTITUTION:A display changeover switch 12 is operated so that both data, the color fish finding data 9 and the track tracer data 10 from a color fish finding signal processing part 3 and a course signal processing part 4 respectively, are selected. Consequently, necessary track tracing and fish finding data are simultaneously displayed in the respective divided areas of a display screen 7 of a CRT16 through a write controlling circuit 11, a refresh memory 13, a readout controlling circuit 14 and a CRT controlling circut 15 in a simultaneous display processing part 8. Observation, decision and the like are facilitated by means of said simultaneous and associated display of different types of nautical data. In addition, according to the operation through the switch 12, it is also possible to display only one kind of nautical data. |
