Cartography overview
Raster Navigational Chart (RNC) — A Raster chart is a digital image of a paper chart, and therefore the available information is limited to the information available on the paper equivalent.
Electronic Navigational Chart (ENC) — ENCs are Vector-based charts and include information that is not available on paper or Raster charts. Objects and features on Vector charts can be selected to obtain data-based information that otherwise would not be readily available. Object and features can also be enabled and disabled or customized.
The level of detail and features available on charts is dependent on vendor, chart type, subscription level and geographic region. Prior to purchasing charts check the vendor’s website to establish what level of detail is available on the charts you want to purchase.
The information relating to available chart detail and settings in this manual should be treated as guidance only as it is subject to change that is not under Raymarine’s control.
The Chart app range scale will also affect the level of detail shown onscreen. Generally, more detail is available at lower ranges. The chart scale in use is indicated by the scale indicator, and the value displayed is the distance that the line represents across the screen.
You can remove and insert chart cards at any time. The chart screen is automatically redrawn when the system detects that a compatible chart card has been inserted or removed.
Different cartography types can be viewed simultaneously using an app page that includes multiple instances of the Chart app.