20 Navigation Data
20.1 NMEA2000 CanBUS to USB converter
The gateway allows you to see data from a NMEA 2000 marine digital network on a PC, laptop or tablet PC with Microsoft Windows, Mac OS or Linux. With it, you get marine network data including vessel course, speed, position, wind speed and direction, water depth.

Figure 20.1: This picture shows how the scientists laptop can plug into the system without getting in the way of the captains station.
The device is called a NMEA2000 CanBUS to USB converter. There are several commercial versions offered. The USB100 from Maretron is the most common: https://www.maretron.com/products/usb100.php ($295)
This is the type of connector we need in order to tap into the ships navigation system: https://www.garmin.com/en-US/p/13372 NMEA 2000® T-connector ($25.00)
Depending on the set up in the vessel, we may also need to order a small NMEA 2000 power cable: ($27.00) https://www.basspro.com/shop/en/ancor-nmea-2000-power-cable-with-tee?hvarAID=shopping_googleproductextensions&ds_e=GOOGLE&ds_c=BPS%7CShopping%7CSmart%7CBoating%7CGeneral%7CNAud%7CNVol%7CNMT&gclid=EAIaIQobChMIktP_jsWE_gIVxm1vBB2Y8QSwEAQYAyABEgJCBvD_BwE&gclsrc=aw.ds
Here is a blurb from an email from the Furuno technical expert regarding this method of data extraction from the navigation equipment:

Figure 20.2: Here is a blurb from an email from the Furuno technical expert regarding this method of data extraction from the navigation equipment.