Appendix 1 · 435
Appendix 1
IHO ECDIS chart 1
International Hydrographic Organization (IHO) has published a set of charts, where you can find examples of used
symbology in S57. You can study them with "Info/Help" and by changing different layer ON and OFF in "Chart
Display". Everything is visible if you select all layers from "Standard" and "Other" sheets ON.
To open IHO ECDIS Chart 1 on display, press CHART PLAN button and select IHO ECDIS Chart 1.
Note that chart AA5C1WOO is intended to help you to select suitable monitor brightness and contrast for current
lightning condition.