Digital Nautical Chart (DNC) is a relational, vector-based digital database replacing approximately 5,000 paper nautical charts. When integrated with ship's radar, GPS, and other systems, DNC dramatically reduces the 80% of marine mishaps caused by human error.
DNC® and ECDIS-N are the greatest advancement in safe navigation since the introduction of radar.
DNC is created and maintained by NGA for use by the US Navy and US Coast Guard. Approximately 6,000 changes are made each month; patches are cumulative so the most current data is always available.
Since inception, more than 750,000 different patches have been flawlessly created and applied using RTPatch. The Baseline DNC is multi-gigabyte in size, making bandwidth efficiency essential — particularly at the level of the individual ship.